./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF --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 64bit --witnessprinter.graph.data.programhash aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:15:36,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:15:36,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:15:36,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:15:36,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:15:36,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:15:36,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:15:36,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:15:36,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:15:36,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:15:36,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:15:36,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:15:36,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:15:36,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:15:36,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:15:36,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:15:36,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:15:36,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:15:36,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:15:36,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:15:36,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:15:36,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:15:36,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:15:36,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:15:36,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:15:36,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:15:36,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:15:36,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:15:36,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:15:36,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:15:36,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:15:36,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:15:36,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:15:36,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:15:36,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:15:36,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:15:36,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:15:36,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:15:36,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:15:36,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:15:36,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:15:36,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:15:36,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:15:36,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:15:36,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:15:36,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:15:36,597 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:15:36,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:15:36,598 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:15:36,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:15:36,598 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:15:36,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:15:36,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:15:36,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:15:36,599 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:15:36,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:15:36,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:15:36,600 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:15:36,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:15:36,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:15:36,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:15:36,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:15:36,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:15:36,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:15:36,602 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:15:36,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:15:36,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:15:36,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:15:36,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:15:36,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:15:36,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:36,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:15:36,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:15:36,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:15:36,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:15:36,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:15:36,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:15:36,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:15:36,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:15:36,606 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_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 [2021-11-12 22:15:36,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:15:36,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:15:36,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:15:36,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:15:36,894 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:15:36,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-11-12 22:15:36,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/6a84f288f/3eaab4e6f9294e929e77010cc4f95472/FLAG20af4f7d3 [2021-11-12 22:15:37,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:15:37,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-11-12 22:15:37,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/6a84f288f/3eaab4e6f9294e929e77010cc4f95472/FLAG20af4f7d3 [2021-11-12 22:15:37,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/6a84f288f/3eaab4e6f9294e929e77010cc4f95472 [2021-11-12 22:15:37,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:15:37,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:15:37,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:37,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:15:37,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:15:37,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:37" (1/1) ... [2021-11-12 22:15:37,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78001e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:37, skipping insertion in model container [2021-11-12 22:15:37,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:37" (1/1) ... [2021-11-12 22:15:37,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:15:37,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:38,788 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_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-11-12 22:15:39,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:39,096 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) [2021-11-12 22:15:39,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b5e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:39, skipping insertion in model container [2021-11-12 22:15:39,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:39,097 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:15:39,099 INFO L158 Benchmark]: Toolchain (without parser) took 1288.58ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 67.4MB in the beginning and 80.4MB in the end (delta: -13.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2021-11-12 22:15:39,100 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:15:39,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1285.75ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 67.1MB in the beginning and 80.4MB in the end (delta: -13.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2021-11-12 22:15:39,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1285.75ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 67.1MB in the beginning and 80.4MB in the end (delta: -13.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5641]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF --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 64bit --witnessprinter.graph.data.programhash aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:15:41,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:15:41,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:15:41,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:15:41,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:15:41,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:15:41,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:15:41,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:15:41,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:15:41,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:15:41,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:15:41,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:15:41,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:15:41,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:15:41,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:15:41,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:15:41,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:15:41,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:15:41,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:15:41,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:15:41,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:15:41,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:15:41,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:15:41,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:15:41,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:15:41,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:15:41,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:15:41,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:15:41,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:15:41,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:15:41,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:15:41,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:15:41,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:15:41,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:15:41,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:15:41,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:15:41,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:15:41,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:15:41,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:15:41,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:15:41,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:15:41,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:15:41,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:15:41,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:15:41,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:15:41,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:15:41,460 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:15:41,460 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:15:41,460 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:15:41,460 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:15:41,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:15:41,461 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:15:41,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:15:41,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:15:41,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:15:41,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:15:41,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:15:41,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:15:41,465 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:15:41,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:15:41,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:15:41,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:15:41,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:15:41,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:15:41,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:15:41,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:15:41,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:41,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:15:41,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:15:41,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:15:41,467 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:15:41,467 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:15:41,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:15:41,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:15:41,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:15:41,468 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_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa96c32cec5c31a75c9cdd0122db38bdeb379765e4b6aca9c91d1bb4fedaed44 [2021-11-12 22:15:41,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:15:41,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:15:41,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:15:41,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:15:41,883 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:15:41,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-11-12 22:15:41,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/25140cad8/93dc9fa1cb46435ab7e3ac9479624fb7/FLAG904ce76be [2021-11-12 22:15:42,890 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:15:42,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-11-12 22:15:42,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/25140cad8/93dc9fa1cb46435ab7e3ac9479624fb7/FLAG904ce76be [2021-11-12 22:15:43,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/data/25140cad8/93dc9fa1cb46435ab7e3ac9479624fb7 [2021-11-12 22:15:43,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:15:43,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:15:43,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:43,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:15:43,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:15:43,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:43" (1/1) ... [2021-11-12 22:15:43,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26713b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:43, skipping insertion in model container [2021-11-12 22:15:43,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:15:43" (1/1) ... [2021-11-12 22:15:43,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:15:43,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:44,299 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_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-11-12 22:15:44,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:44,731 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:15:44,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:15:44,950 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_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-11-12 22:15:45,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:45,112 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:15:45,308 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_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i[158033,158046] [2021-11-12 22:15:45,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:15:45,549 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:15:45,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45 WrapperNode [2021-11-12 22:15:45,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:15:45,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:15:45,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:15:45,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:15:45,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:15:45,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:15:45,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:15:45,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:15:45,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:15:45,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:15:45,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:15:45,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:15:45,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (1/1) ... [2021-11-12 22:15:45,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:15:45,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:15:45,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:15:45,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:15:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-12 22:15:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-12 22:15:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:15:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:15:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:15:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:15:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:15:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:15:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:15:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:15:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure state [2021-11-12 22:15:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2021-11-12 22:15:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-11-12 22:15:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-11-12 22:15:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_ioctl [2021-11-12 22:15:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_ioctl [2021-11-12 22:15:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_rx [2021-11-12 22:15:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_rx [2021-11-12 22:15:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-12 22:15:46,001 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-12 22:15:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_type_trans [2021-11-12 22:15:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_type_trans [2021-11-12 22:15:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:15:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:15:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2021-11-12 22:15:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2021-11-12 22:15:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-12 22:15:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-12 22:15:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-12 22:15:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-12 22:15:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-12 22:15:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-12 22:15:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:15:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:15:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:15:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:15:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:15:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:15:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:15:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:15:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:15:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:15:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:15:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_hard_header [2021-11-12 22:15:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_hard_header [2021-11-12 22:15:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-12 22:15:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-12 22:15:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:15:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:15:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-12 22:15:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-12 22:15:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:15:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:15:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:15:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-11-12 22:15:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-11-12 22:15:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:15:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-12 22:15:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-12 22:15:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:15:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-12 22:15:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-12 22:15:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-12 22:15:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-12 22:15:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:15:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:15:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:15:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:15:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:15:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:15:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-12 22:15:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-12 22:15:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:15:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure cisco_keepalive_send [2021-11-12 22:15:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure cisco_keepalive_send [2021-11-12 22:15:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-12 22:15:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-12 22:15:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-12 22:15:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-12 22:15:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 22:15:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 22:15:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 22:15:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 22:15:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:15:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2021-11-12 22:15:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2021-11-12 22:15:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:15:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:15:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 22:15:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 22:15:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:15:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:15:46,576 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:15:56,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:15:56,445 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:15:56,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:15:56 BoogieIcfgContainer [2021-11-12 22:15:56,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:15:56,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:15:56,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:15:56,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:15:56,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:15:43" (1/3) ... [2021-11-12 22:15:56,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddef1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:15:56, skipping insertion in model container [2021-11-12 22:15:56,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:15:45" (2/3) ... [2021-11-12 22:15:56,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddef1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:15:56, skipping insertion in model container [2021-11-12 22:15:56,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:15:56" (3/3) ... [2021-11-12 22:15:56,456 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_cisco.ko-entry_point.cil.out.i [2021-11-12 22:15:56,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:15:56,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:15:56,514 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:15:56,520 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 [2021-11-12 22:15:56,521 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:15:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 488 states, 358 states have (on average 1.3715083798882681) internal successors, (491), 371 states have internal predecessors, (491), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2021-11-12 22:15:56,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-12 22:15:56,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:15:56,560 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1] [2021-11-12 22:15:56,561 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:15:56,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:15:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -796223239, now seen corresponding path program 1 times [2021-11-12 22:15:56,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:15:56,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470203370] [2021-11-12 22:15:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:15:56,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:15:56,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:15:56,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:15:56,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:15:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:15:56,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:15:56,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:15:57,191 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:15:57,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:15:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:15:57,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:15:57,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470203370] [2021-11-12 22:15:57,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470203370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:15:57,404 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:15:57,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:15:57,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874175026] [2021-11-12 22:15:57,407 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:15:57,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:15:57,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:15:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:15:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:15:57,454 INFO L87 Difference]: Start difference. First operand has 488 states, 358 states have (on average 1.3715083798882681) internal successors, (491), 371 states have internal predecessors, (491), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-12 22:15:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:15:59,488 INFO L93 Difference]: Finished difference Result 1874 states and 2678 transitions. [2021-11-12 22:15:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:15:59,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-11-12 22:15:59,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:15:59,524 INFO L225 Difference]: With dead ends: 1874 [2021-11-12 22:15:59,524 INFO L226 Difference]: Without dead ends: 1370 [2021-11-12 22:15:59,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:15:59,539 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 1723 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1623.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.33ms SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1811.73ms IncrementalHoareTripleChecker+Time [2021-11-12 22:15:59,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1723 Valid, 1954 Invalid, 385 Unknown, 0 Unchecked, 24.33ms Time], IncrementalHoareTripleChecker [182 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1811.73ms Time] [2021-11-12 22:15:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2021-11-12 22:15:59,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1370. [2021-11-12 22:15:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1016 states have (on average 1.359251968503937) internal successors, (1381), 1037 states have internal predecessors, (1381), 263 states have call successors, (263), 91 states have call predecessors, (263), 90 states have return successors, (262), 262 states have call predecessors, (262), 262 states have call successors, (262) [2021-11-12 22:15:59,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1906 transitions. [2021-11-12 22:15:59,765 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1906 transitions. Word has length 47 [2021-11-12 22:15:59,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:15:59,766 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 1906 transitions. [2021-11-12 22:15:59,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-12 22:15:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1906 transitions. [2021-11-12 22:15:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 22:15:59,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:15:59,771 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:15:59,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:15:59,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:15:59,972 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:15:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:15:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 566714884, now seen corresponding path program 1 times [2021-11-12 22:15:59,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:15:59,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114097511] [2021-11-12 22:15:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:15:59,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:15:59,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:15:59,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:15:59,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:16:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:00,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:16:00,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:16:00,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:16:00,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:00,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114097511] [2021-11-12 22:16:00,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114097511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:00,573 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:00,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:16:00,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73265836] [2021-11-12 22:16:00,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:00,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:16:00,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:16:00,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:16:00,576 INFO L87 Difference]: Start difference. First operand 1370 states and 1906 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-12 22:16:00,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:00,917 INFO L93 Difference]: Finished difference Result 2725 states and 3791 transitions. [2021-11-12 22:16:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:16:00,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2021-11-12 22:16:00,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:00,934 INFO L225 Difference]: With dead ends: 2725 [2021-11-12 22:16:00,934 INFO L226 Difference]: Without dead ends: 1369 [2021-11-12 22:16:00,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:16:00,945 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 794 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.30ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:00,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [794 Valid, 1453 Invalid, 73 Unknown, 0 Unchecked, 10.30ms Time], IncrementalHoareTripleChecker [37 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 205.51ms Time] [2021-11-12 22:16:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2021-11-12 22:16:01,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1369. [2021-11-12 22:16:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1015 states have (on average 1.3566502463054186) internal successors, (1377), 1036 states have internal predecessors, (1377), 263 states have call successors, (263), 91 states have call predecessors, (263), 90 states have return successors, (262), 262 states have call predecessors, (262), 262 states have call successors, (262) [2021-11-12 22:16:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1902 transitions. [2021-11-12 22:16:01,104 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1902 transitions. Word has length 50 [2021-11-12 22:16:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:01,105 INFO L470 AbstractCegarLoop]: Abstraction has 1369 states and 1902 transitions. [2021-11-12 22:16:01,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-12 22:16:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1902 transitions. [2021-11-12 22:16:01,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 22:16:01,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:01,115 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:01,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:01,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:01,330 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:16:01,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:01,330 INFO L85 PathProgramCache]: Analyzing trace with hash -965053755, now seen corresponding path program 1 times [2021-11-12 22:16:01,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:01,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684074054] [2021-11-12 22:16:01,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:01,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:01,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:01,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:01,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:16:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:01,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:16:01,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-12 22:16:02,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-11-12 22:16:02,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:02,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684074054] [2021-11-12 22:16:02,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684074054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:02,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:02,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:16:02,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927900367] [2021-11-12 22:16:02,326 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:02,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:16:02,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:02,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:16:02,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:16:02,328 INFO L87 Difference]: Start difference. First operand 1369 states and 1902 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:16:02,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:02,638 INFO L93 Difference]: Finished difference Result 4076 states and 5696 transitions. [2021-11-12 22:16:02,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:16:02,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2021-11-12 22:16:02,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:02,697 INFO L225 Difference]: With dead ends: 4076 [2021-11-12 22:16:02,697 INFO L226 Difference]: Without dead ends: 2716 [2021-11-12 22:16:02,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:16:02,708 INFO L933 BasicCegarLoop]: 752 mSDtfsCounter, 627 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.38ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:02,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 3648 Invalid, 28 Unknown, 0 Unchecked, 12.38ms Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 110.97ms Time] [2021-11-12 22:16:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-11-12 22:16:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2716. [2021-11-12 22:16:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2015 states have (on average 1.3573200992555832) internal successors, (2735), 2057 states have internal predecessors, (2735), 520 states have call successors, (520), 181 states have call predecessors, (520), 180 states have return successors, (534), 519 states have call predecessors, (534), 519 states have call successors, (534) [2021-11-12 22:16:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3789 transitions. [2021-11-12 22:16:02,925 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3789 transitions. Word has length 71 [2021-11-12 22:16:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:02,928 INFO L470 AbstractCegarLoop]: Abstraction has 2716 states and 3789 transitions. [2021-11-12 22:16:02,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:16:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3789 transitions. [2021-11-12 22:16:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-12 22:16:02,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:02,943 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:16:02,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:03,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:03,158 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:16:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -574025911, now seen corresponding path program 1 times [2021-11-12 22:16:03,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:03,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133565353] [2021-11-12 22:16:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:03,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:03,164 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:03,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:16:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:03,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:16:03,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-12 22:16:04,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-12 22:16:04,643 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:04,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133565353] [2021-11-12 22:16:04,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133565353] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:04,643 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:04,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:16:04,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234708656] [2021-11-12 22:16:04,644 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:04,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:16:04,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:16:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:16:04,646 INFO L87 Difference]: Start difference. First operand 2716 states and 3789 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 22:16:04,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:04,852 INFO L93 Difference]: Finished difference Result 5454 states and 7655 transitions. [2021-11-12 22:16:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:16:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2021-11-12 22:16:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:04,875 INFO L225 Difference]: With dead ends: 5454 [2021-11-12 22:16:04,875 INFO L226 Difference]: Without dead ends: 2752 [2021-11-12 22:16:04,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:16:04,889 INFO L933 BasicCegarLoop]: 658 mSDtfsCounter, 2 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.85ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.07ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:04,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2627 Invalid, 12 Unknown, 0 Unchecked, 5.85ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 27.07ms Time] [2021-11-12 22:16:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-12 22:16:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2746. [2021-11-12 22:16:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 2036 states have (on average 1.3536345776031433) internal successors, (2756), 2081 states have internal predecessors, (2756), 520 states have call successors, (520), 181 states have call predecessors, (520), 189 states have return successors, (552), 525 states have call predecessors, (552), 519 states have call successors, (552) [2021-11-12 22:16:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3828 transitions. [2021-11-12 22:16:05,064 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3828 transitions. Word has length 141 [2021-11-12 22:16:05,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:05,065 INFO L470 AbstractCegarLoop]: Abstraction has 2746 states and 3828 transitions. [2021-11-12 22:16:05,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 22:16:05,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3828 transitions. [2021-11-12 22:16:05,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-12 22:16:05,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:05,076 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 3, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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] [2021-11-12 22:16:05,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:05,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:05,295 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:16:05,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:05,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1293113785, now seen corresponding path program 1 times [2021-11-12 22:16:05,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:05,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111438383] [2021-11-12 22:16:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:05,297 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:05,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:05,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:05,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:16:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:16:05,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-12 22:16:05,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:16:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-12 22:16:06,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:16:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-12 22:16:08,742 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:16:08,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111438383] [2021-11-12 22:16:08,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111438383] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:16:08,742 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:16:08,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-11-12 22:16:08,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710013834] [2021-11-12 22:16:08,743 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:16:08,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-12 22:16:08,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:16:08,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-12 22:16:08,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-11-12 22:16:08,744 INFO L87 Difference]: Start difference. First operand 2746 states and 3828 transitions. Second operand has 20 states, 20 states have (on average 5.35) internal successors, (107), 16 states have internal predecessors, (107), 4 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (23), 8 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 22:16:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:16:15,917 INFO L93 Difference]: Finished difference Result 5586 states and 7818 transitions. [2021-11-12 22:16:15,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 22:16:15,918 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 16 states have internal predecessors, (107), 4 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (23), 8 states have call predecessors, (23), 4 states have call successors, (23) Word has length 148 [2021-11-12 22:16:15,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:16:15,973 INFO L225 Difference]: With dead ends: 5586 [2021-11-12 22:16:15,974 INFO L226 Difference]: Without dead ends: 2854 [2021-11-12 22:16:15,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-11-12 22:16:15,986 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 65 mSDsluCounter, 6662 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6538.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 7333 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.14ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6750.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:16:15,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 7333 Invalid, 150 Unknown, 0 Unchecked, 17.14ms Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 6750.47ms Time] [2021-11-12 22:16:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2021-11-12 22:16:16,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2806. [2021-11-12 22:16:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2081 states have (on average 1.3431042767900048) internal successors, (2795), 2126 states have internal predecessors, (2795), 529 states have call successors, (529), 181 states have call predecessors, (529), 195 states have return successors, (570), 540 states have call predecessors, (570), 528 states have call successors, (570) [2021-11-12 22:16:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3894 transitions. [2021-11-12 22:16:16,145 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3894 transitions. Word has length 148 [2021-11-12 22:16:16,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:16:16,146 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3894 transitions. [2021-11-12 22:16:16,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 16 states have internal predecessors, (107), 4 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (23), 8 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 22:16:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3894 transitions. [2021-11-12 22:16:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-12 22:16:16,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:16:16,158 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 4, 4, 4, 3, 2, 2, 2, 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, 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, 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, 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, 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] [2021-11-12 22:16:16,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:16,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:16,375 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:16:16,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:16:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash -669328497, now seen corresponding path program 1 times [2021-11-12 22:16:16,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:16:16,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778651482] [2021-11-12 22:16:16,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:16:16,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:16:16,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:16:16,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:16:16,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:16:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:16:23,048 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:16:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:16:26,543 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-12 22:16:26,545 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:16:26,546 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:16:26,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:16:26,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:16:26,765 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-12 22:16:26,769 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:16:26,866 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,867 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,868 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,869 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,870 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2021-11-12 22:16:26,933 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 22:16:26,937 INFO L158 Benchmark]: Toolchain (without parser) took 43593.31ms. Allocated memory was 60.8MB in the beginning and 339.7MB in the end (delta: 278.9MB). Free memory was 33.2MB in the beginning and 234.7MB in the end (delta: -201.5MB). Peak memory consumption was 195.8MB. Max. memory is 16.1GB. [2021-11-12 22:16:26,937 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 41.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:16:26,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2205.98ms. Allocated memory was 60.8MB in the beginning and 138.4MB in the end (delta: 77.6MB). Free memory was 33.0MB in the beginning and 87.3MB in the end (delta: -54.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2021-11-12 22:16:26,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 179.81ms. Allocated memory is still 138.4MB. Free memory was 87.3MB in the beginning and 78.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:16:26,939 INFO L158 Benchmark]: Boogie Preprocessor took 165.47ms. Allocated memory is still 138.4MB. Free memory was 78.9MB in the beginning and 69.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:16:26,939 INFO L158 Benchmark]: RCFGBuilder took 10549.05ms. Allocated memory was 138.4MB in the beginning and 234.9MB in the end (delta: 96.5MB). Free memory was 69.8MB in the beginning and 149.9MB in the end (delta: -80.1MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-11-12 22:16:26,940 INFO L158 Benchmark]: TraceAbstraction took 30486.63ms. Allocated memory was 234.9MB in the beginning and 339.7MB in the end (delta: 104.9MB). Free memory was 149.9MB in the beginning and 234.7MB in the end (delta: -84.8MB). Peak memory consumption was 136.5MB. Max. memory is 16.1GB. [2021-11-12 22:16:26,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 41.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2205.98ms. Allocated memory was 60.8MB in the beginning and 138.4MB in the end (delta: 77.6MB). Free memory was 33.0MB in the beginning and 87.3MB in the end (delta: -54.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 179.81ms. Allocated memory is still 138.4MB. Free memory was 87.3MB in the beginning and 78.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 165.47ms. Allocated memory is still 138.4MB. Free memory was 78.9MB in the beginning and 69.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 10549.05ms. Allocated memory was 138.4MB in the beginning and 234.9MB in the end (delta: 96.5MB). Free memory was 69.8MB in the beginning and 149.9MB in the end (delta: -80.1MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30486.63ms. Allocated memory was 234.9MB in the beginning and 339.7MB in the end (delta: 104.9MB). Free memory was 149.9MB in the beginning and 234.7MB in the end (delta: -84.8MB). Peak memory consumption was 136.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:16:27,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a667e11c-2c99-4ff1-84b2-0fba74f9dbca/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null