./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8 --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 dcf5140fb8d3cca08efae44c7b81afb04deeac6d ......................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8 --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 dcf5140fb8d3cca08efae44c7b81afb04deeac6d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:20:52,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:20:52,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:20:52,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:20:52,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:20:52,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:20:52,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:20:52,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:20:52,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:20:52,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:20:52,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:20:52,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:20:52,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:20:52,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:20:52,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:20:52,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:20:52,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:20:52,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:20:52,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:20:52,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:20:52,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:20:52,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:20:52,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:20:52,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:20:52,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:20:52,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:20:52,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:20:52,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:20:52,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:20:52,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:20:52,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:20:52,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:20:52,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:20:52,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:20:52,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:20:52,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:20:52,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:20:52,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:20:52,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:20:52,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:20:52,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:20:52,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-13 07:20:52,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:20:52,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:20:52,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:20:52,496 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:20:52,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:20:52,496 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:20:52,496 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:20:52,497 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:20:52,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:20:52,503 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:20:52,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:20:52,504 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:20:52,505 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:20:52,505 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:20:52,505 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:20:52,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:20:52,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:20:52,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:20:52,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:20:52,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:20:52,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:20:52,507 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:20:52,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:20:52,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:20:52,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:20:52,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:20:52,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:20:52,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:20:52,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:20:52,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:20:52,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:20:52,510 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:20:52,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:20:52,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:20:52,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:20:52,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:20:52,511 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_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf5140fb8d3cca08efae44c7b81afb04deeac6d [2021-10-13 07:20:52,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:20:52,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:20:52,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:20:52,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:20:52,837 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:20:52,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-13 07:20:52,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/ca8ef3b71/fccfc3d3f2bc4b04bcd3951263c8d69a/FLAG50175576f [2021-10-13 07:20:53,805 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:20:53,806 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-13 07:20:53,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/ca8ef3b71/fccfc3d3f2bc4b04bcd3951263c8d69a/FLAG50175576f [2021-10-13 07:20:54,330 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/ca8ef3b71/fccfc3d3f2bc4b04bcd3951263c8d69a [2021-10-13 07:20:54,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:20:54,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:20:54,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:20:54,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:20:54,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:20:54,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:54" (1/1) ... [2021-10-13 07:20:54,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0feb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:54, skipping insertion in model container [2021-10-13 07:20:54,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:54" (1/1) ... [2021-10-13 07:20:54,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:20:54,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:20:55,396 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-13 07:20:55,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:20:55,628 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 07:20:55,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fa13994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:55, skipping insertion in model container [2021-10-13 07:20:55,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:20:55,630 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:20:55,633 INFO L168 Benchmark]: Toolchain (without parser) took 1297.54 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 73.9 MB in the beginning and 105.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:20:55,634 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory is still 98.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:20:55,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1294.13 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 73.7 MB in the beginning and 105.4 MB in the end (delta: -31.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:20:55,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory is still 98.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1294.13 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 73.7 MB in the beginning and 105.4 MB in the end (delta: -31.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5975]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:20:57,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:20:57,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:20:57,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:20:57,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:20:57,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:20:57,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:20:57,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:20:57,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:20:57,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:20:57,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:20:57,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:20:57,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:20:57,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:20:57,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:20:57,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:20:57,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:20:57,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:20:57,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:20:57,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:20:57,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:20:57,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:20:57,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:20:57,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:20:57,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:20:57,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:20:57,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:20:57,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:20:57,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:20:57,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:20:57,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:20:57,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:20:57,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:20:57,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:20:57,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:20:57,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:20:57,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:20:58,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:20:58,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:20:58,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:20:58,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:20:58,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-10-13 07:20:58,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:20:58,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:20:58,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:20:58,065 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:20:58,066 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:20:58,066 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:20:58,066 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:20:58,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:20:58,067 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:20:58,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:20:58,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:20:58,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:20:58,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:20:58,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:20:58,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:20:58,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:20:58,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:20:58,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:20:58,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:20:58,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:20:58,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:20:58,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:20:58,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:20:58,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:20:58,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:20:58,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:20:58,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:20:58,072 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:20:58,072 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:20:58,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:20:58,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:20:58,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:20:58,073 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_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf5140fb8d3cca08efae44c7b81afb04deeac6d [2021-10-13 07:20:58,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:20:58,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:20:58,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:20:58,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:20:58,483 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:20:58,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-13 07:20:58,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/3a8d66031/f31c355eee7d46bf9b9f305acbe59873/FLAG6dfa3ef4e [2021-10-13 07:20:59,473 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:20:59,474 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-13 07:20:59,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/3a8d66031/f31c355eee7d46bf9b9f305acbe59873/FLAG6dfa3ef4e [2021-10-13 07:20:59,965 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/data/3a8d66031/f31c355eee7d46bf9b9f305acbe59873 [2021-10-13 07:20:59,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:20:59,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:20:59,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:20:59,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:20:59,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:20:59,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:59" (1/1) ... [2021-10-13 07:20:59,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe5991a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:59, skipping insertion in model container [2021-10-13 07:20:59,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:59" (1/1) ... [2021-10-13 07:20:59,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:21:00,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:21:00,944 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_d61f1d91-2bf3-42b1-9733-69566d420c44/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-13 07:21:01,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:01,196 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 07:21:01,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:21:01,494 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_d61f1d91-2bf3-42b1-9733-69566d420c44/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-13 07:21:01,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:01,562 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:21:01,798 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_d61f1d91-2bf3-42b1-9733-69566d420c44/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-13 07:21:01,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:21:01,952 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:21:01,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01 WrapperNode [2021-10-13 07:21:01,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:21:01,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:21:01,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:21:01,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:21:01,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:21:02,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:21:02,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:21:02,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:21:02,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:21:02,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:21:02,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:21:02,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:21:02,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (1/1) ... [2021-10-13 07:21:02,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:21:02,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:21:02,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:21:02,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:21:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:21:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 07:21:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:21:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 07:21:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:21:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 07:21:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-13 07:21:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:21:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-13 07:21:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-10-13 07:21:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:21:02,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:21:05,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:21:05,406 INFO L299 CfgBuilder]: Removed 141 assume(true) statements. [2021-10-13 07:21:05,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:05 BoogieIcfgContainer [2021-10-13 07:21:05,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:21:05,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:21:05,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:21:05,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:21:05,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:20:59" (1/3) ... [2021-10-13 07:21:05,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e64b113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:05, skipping insertion in model container [2021-10-13 07:21:05,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:01" (2/3) ... [2021-10-13 07:21:05,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e64b113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:05, skipping insertion in model container [2021-10-13 07:21:05,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:05" (3/3) ... [2021-10-13 07:21:05,421 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-13 07:21:05,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:21:05,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 07:21:05,490 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:21:05,496 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:21:05,497 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 07:21:05,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:05,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 07:21:05,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:05,539 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:05,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:05,546 INFO L82 PathProgramCache]: Analyzing trace with hash 214162578, now seen corresponding path program 1 times [2021-10-13 07:21:05,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:05,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390892776] [2021-10-13 07:21:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:05,564 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:05,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:05,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:05,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:21:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:06,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:21:06,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:06,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:06,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:06,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390892776] [2021-10-13 07:21:06,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390892776] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:06,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:06,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:21:06,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599805398] [2021-10-13 07:21:06,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:21:06,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:06,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:21:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:21:06,936 INFO L87 Difference]: Start difference. First operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:06,990 INFO L93 Difference]: Finished difference Result 310 states and 445 transitions. [2021-10-13 07:21:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:21:06,992 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-13 07:21:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:07,006 INFO L225 Difference]: With dead ends: 310 [2021-10-13 07:21:07,006 INFO L226 Difference]: Without dead ends: 144 [2021-10-13 07:21:07,010 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:21:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-13 07:21:07,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-10-13 07:21:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 143 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:07,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2021-10-13 07:21:07,068 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 190 transitions. Word has length 39 [2021-10-13 07:21:07,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:07,069 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-10-13 07:21:07,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 190 transitions. [2021-10-13 07:21:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 07:21:07,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:07,072 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:07,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:07,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:07,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:07,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:07,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1366579640, now seen corresponding path program 1 times [2021-10-13 07:21:07,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:07,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024131232] [2021-10-13 07:21:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:07,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:07,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:07,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:07,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:21:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:08,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:21:08,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:08,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:08,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:08,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024131232] [2021-10-13 07:21:08,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024131232] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:08,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:21:08,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:21:08,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359962481] [2021-10-13 07:21:08,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:21:08,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:21:08,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:21:08,528 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:08,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:08,607 INFO L93 Difference]: Finished difference Result 262 states and 355 transitions. [2021-10-13 07:21:08,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:21:08,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-13 07:21:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:08,611 INFO L225 Difference]: With dead ends: 262 [2021-10-13 07:21:08,613 INFO L226 Difference]: Without dead ends: 146 [2021-10-13 07:21:08,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:21:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-13 07:21:08,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-10-13 07:21:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 145 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2021-10-13 07:21:08,629 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 192 transitions. Word has length 39 [2021-10-13 07:21:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:08,635 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 192 transitions. [2021-10-13 07:21:08,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2021-10-13 07:21:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 07:21:08,643 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:08,644 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:08,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:08,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:08,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:08,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1435661640, now seen corresponding path program 1 times [2021-10-13 07:21:08,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:08,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151612400] [2021-10-13 07:21:08,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:08,864 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:08,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:08,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:08,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:21:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:09,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:09,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:10,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:10,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:10,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151612400] [2021-10-13 07:21:10,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151612400] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:10,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2061899646] [2021-10-13 07:21:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:10,187 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:10,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:10,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-13 07:21:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:11,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:11,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:11,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:11,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:11,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2061899646] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:11,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:11,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-13 07:21:11,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124628311] [2021-10-13 07:21:11,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:11,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:11,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:11,276 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:11,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:11,436 INFO L93 Difference]: Finished difference Result 349 states and 481 transitions. [2021-10-13 07:21:11,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:11,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-13 07:21:11,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:11,441 INFO L225 Difference]: With dead ends: 349 [2021-10-13 07:21:11,442 INFO L226 Difference]: Without dead ends: 235 [2021-10-13 07:21:11,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 118.0ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:11,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-13 07:21:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 221. [2021-10-13 07:21:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 215 states have (on average 1.4325581395348836) internal successors, (308), 220 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 308 transitions. [2021-10-13 07:21:11,471 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 308 transitions. Word has length 41 [2021-10-13 07:21:11,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:11,472 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 308 transitions. [2021-10-13 07:21:11,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 308 transitions. [2021-10-13 07:21:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-13 07:21:11,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:11,476 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:11,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:11,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:11,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:11,898 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:11,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1265334357, now seen corresponding path program 1 times [2021-10-13 07:21:11,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:11,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289456619] [2021-10-13 07:21:11,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:11,902 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:11,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:11,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:11,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:21:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:12,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:12,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:13,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:13,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:13,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289456619] [2021-10-13 07:21:13,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289456619] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:13,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1194728102] [2021-10-13 07:21:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:13,201 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:13,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:13,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:13,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 07:21:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:13,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:13,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:14,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:14,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1194728102] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:14,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:14,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-13 07:21:14,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123331309] [2021-10-13 07:21:14,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:14,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:14,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:14,339 INFO L87 Difference]: Start difference. First operand 221 states and 308 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:14,348 INFO L93 Difference]: Finished difference Result 221 states and 308 transitions. [2021-10-13 07:21:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:14,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-13 07:21:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:14,350 INFO L225 Difference]: With dead ends: 221 [2021-10-13 07:21:14,350 INFO L226 Difference]: Without dead ends: 219 [2021-10-13 07:21:14,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 110.4ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-13 07:21:14,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-10-13 07:21:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4299065420560748) internal successors, (306), 218 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 306 transitions. [2021-10-13 07:21:14,368 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 306 transitions. Word has length 44 [2021-10-13 07:21:14,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:14,369 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 306 transitions. [2021-10-13 07:21:14,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:14,369 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 306 transitions. [2021-10-13 07:21:14,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 07:21:14,376 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:14,376 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:14,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:14,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:14,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:14,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:14,791 INFO L82 PathProgramCache]: Analyzing trace with hash -570652871, now seen corresponding path program 1 times [2021-10-13 07:21:14,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:14,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532480869] [2021-10-13 07:21:14,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:14,793 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:14,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:14,795 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:14,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:21:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:15,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:15,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:15,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:16,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:16,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:16,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532480869] [2021-10-13 07:21:16,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532480869] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:16,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1438276780] [2021-10-13 07:21:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:16,067 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:16,069 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:16,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 07:21:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:16,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:16,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:16,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:17,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1438276780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:17,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:17,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-13 07:21:17,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825582305] [2021-10-13 07:21:17,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:17,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:17,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:17,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:17,172 INFO L87 Difference]: Start difference. First operand 219 states and 306 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:17,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:17,183 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2021-10-13 07:21:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:17,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-13 07:21:17,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:17,185 INFO L225 Difference]: With dead ends: 219 [2021-10-13 07:21:17,186 INFO L226 Difference]: Without dead ends: 217 [2021-10-13 07:21:17,186 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 90.5ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:17,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-13 07:21:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-10-13 07:21:17,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 213 states have (on average 1.4272300469483568) internal successors, (304), 216 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:17,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 304 transitions. [2021-10-13 07:21:17,202 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 304 transitions. Word has length 45 [2021-10-13 07:21:17,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:17,203 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 304 transitions. [2021-10-13 07:21:17,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 304 transitions. [2021-10-13 07:21:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 07:21:17,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:17,204 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:17,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:17,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:17,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:17,614 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash -510363275, now seen corresponding path program 1 times [2021-10-13 07:21:17,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:17,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223793497] [2021-10-13 07:21:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:17,618 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:17,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:17,619 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:17,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:21:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:18,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:18,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:18,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:18,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:18,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223793497] [2021-10-13 07:21:18,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223793497] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:18,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [894952325] [2021-10-13 07:21:18,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:18,948 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:18,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:18,954 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:18,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-13 07:21:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:19,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:19,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:20,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:20,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [894952325] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:20,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:20,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-13 07:21:20,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482923008] [2021-10-13 07:21:20,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:20,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:20,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:20,182 INFO L87 Difference]: Start difference. First operand 217 states and 304 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:20,188 INFO L93 Difference]: Finished difference Result 217 states and 304 transitions. [2021-10-13 07:21:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:20,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 07:21:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:20,190 INFO L225 Difference]: With dead ends: 217 [2021-10-13 07:21:20,190 INFO L226 Difference]: Without dead ends: 215 [2021-10-13 07:21:20,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 105.0ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:20,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-13 07:21:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-10-13 07:21:20,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 212 states have (on average 1.4245283018867925) internal successors, (302), 214 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:20,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 302 transitions. [2021-10-13 07:21:20,206 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 302 transitions. Word has length 46 [2021-10-13 07:21:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:20,207 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 302 transitions. [2021-10-13 07:21:20,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 302 transitions. [2021-10-13 07:21:20,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-13 07:21:20,210 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:20,211 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:20,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:20,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:20,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:20,615 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:20,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1358614211, now seen corresponding path program 1 times [2021-10-13 07:21:20,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:20,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703681137] [2021-10-13 07:21:20,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:20,617 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:20,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:20,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:20,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:21:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:21,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:21,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:21,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:21:21,997 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:21,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703681137] [2021-10-13 07:21:21,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703681137] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:21,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1896447199] [2021-10-13 07:21:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:21,999 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:21,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:22,000 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:22,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 07:21:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:22,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:22,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:23,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:21:23,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1896447199] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:23,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:23,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-13 07:21:23,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938545541] [2021-10-13 07:21:23,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:23,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:23,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:23,192 INFO L87 Difference]: Start difference. First operand 215 states and 302 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:23,231 INFO L93 Difference]: Finished difference Result 574 states and 835 transitions. [2021-10-13 07:21:23,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:23,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-13 07:21:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:23,234 INFO L225 Difference]: With dead ends: 574 [2021-10-13 07:21:23,234 INFO L226 Difference]: Without dead ends: 385 [2021-10-13 07:21:23,235 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 110.2ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:23,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-13 07:21:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2021-10-13 07:21:23,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.4552631578947368) internal successors, (553), 382 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 553 transitions. [2021-10-13 07:21:23,255 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 553 transitions. Word has length 47 [2021-10-13 07:21:23,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:23,256 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 553 transitions. [2021-10-13 07:21:23,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 553 transitions. [2021-10-13 07:21:23,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-13 07:21:23,257 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:23,257 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:23,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:23,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:23,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:23,674 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:23,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:23,675 INFO L82 PathProgramCache]: Analyzing trace with hash 253710387, now seen corresponding path program 1 times [2021-10-13 07:21:23,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:23,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485810352] [2021-10-13 07:21:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:23,676 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:23,678 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:23,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 07:21:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:24,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:24,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:21:24,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:21:25,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:25,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485810352] [2021-10-13 07:21:25,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485810352] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:25,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2123833209] [2021-10-13 07:21:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:25,182 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:25,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:25,184 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:25,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-13 07:21:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:26,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:26,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:21:26,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:21:26,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2123833209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:26,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:26,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-13 07:21:26,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178966489] [2021-10-13 07:21:26,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:21:26,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:21:26,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:26,384 INFO L87 Difference]: Start difference. First operand 383 states and 553 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:27,237 INFO L93 Difference]: Finished difference Result 734 states and 1073 transitions. [2021-10-13 07:21:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:21:27,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-13 07:21:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:27,241 INFO L225 Difference]: With dead ends: 734 [2021-10-13 07:21:27,241 INFO L226 Difference]: Without dead ends: 383 [2021-10-13 07:21:27,242 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 88.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:21:27,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-10-13 07:21:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-10-13 07:21:27,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.45) internal successors, (551), 382 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 551 transitions. [2021-10-13 07:21:27,262 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 551 transitions. Word has length 68 [2021-10-13 07:21:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:27,262 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 551 transitions. [2021-10-13 07:21:27,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 551 transitions. [2021-10-13 07:21:27,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-13 07:21:27,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:27,264 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:21:27,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:27,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:27,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:27,669 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:27,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:27,669 INFO L82 PathProgramCache]: Analyzing trace with hash 332091450, now seen corresponding path program 1 times [2021-10-13 07:21:27,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:27,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992750235] [2021-10-13 07:21:27,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:27,670 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:27,671 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:27,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:21:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:28,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:28,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:21:29,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:21:29,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:29,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992750235] [2021-10-13 07:21:29,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992750235] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:29,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1339229320] [2021-10-13 07:21:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:29,249 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:29,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:29,249 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:29,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-13 07:21:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:31,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:31,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:21:31,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 07:21:31,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1339229320] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:31,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181237249] [2021-10-13 07:21:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:31,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:21:31,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:21:31,586 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:21:31,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 07:21:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:32,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:21:32,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:21:32,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:21:32,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181237249] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:32,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:21:32,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 13 [2021-10-13 07:21:32,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244577260] [2021-10-13 07:21:32,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:21:32,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:21:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:21:32,933 INFO L87 Difference]: Start difference. First operand 383 states and 551 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:33,180 INFO L93 Difference]: Finished difference Result 1385 states and 2054 transitions. [2021-10-13 07:21:33,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:21:33,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-10-13 07:21:33,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:33,188 INFO L225 Difference]: With dead ends: 1385 [2021-10-13 07:21:33,188 INFO L226 Difference]: Without dead ends: 1034 [2021-10-13 07:21:33,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 280.7ms TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:21:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-10-13 07:21:33,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 381. [2021-10-13 07:21:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 379 states have (on average 1.4485488126649078) internal successors, (549), 380 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:33,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2021-10-13 07:21:33,218 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 69 [2021-10-13 07:21:33,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:33,218 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2021-10-13 07:21:33,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:33,219 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2021-10-13 07:21:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-13 07:21:33,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:33,220 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 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] [2021-10-13 07:21:33,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:33,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:33,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:33,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:21:33,843 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:21:33,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:33,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1703397231, now seen corresponding path program 1 times [2021-10-13 07:21:33,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:33,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376066643] [2021-10-13 07:21:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:33,846 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:33,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:33,847 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:33,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 07:21:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:35,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:35,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 07:21:35,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 07:21:35,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:35,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376066643] [2021-10-13 07:21:35,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376066643] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:35,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [889617493] [2021-10-13 07:21:35,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:35,549 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:35,558 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:35,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-13 07:21:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:37,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:21:37,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 07:21:37,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 07:21:38,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [889617493] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:38,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510632183] [2021-10-13 07:21:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:38,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:21:38,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:21:38,052 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:21:38,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-13 07:21:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:39,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:21:39,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:21:39,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:21:39,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510632183] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:39,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:21:39,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 14 [2021-10-13 07:21:39,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789526503] [2021-10-13 07:21:39,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:21:39,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:39,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:21:39,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:21:39,610 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:39,709 INFO L93 Difference]: Finished difference Result 536 states and 785 transitions. [2021-10-13 07:21:39,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:21:39,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-10-13 07:21:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:39,711 INFO L225 Difference]: With dead ends: 536 [2021-10-13 07:21:39,711 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:21:39,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 227.1ms TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-10-13 07:21:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:21:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:21:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:21:39,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-10-13 07:21:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:39,713 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:21:39,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:21:39,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:21:39,716 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:39,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:39,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:39,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:39,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:39,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:39,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:39,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:40,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:40,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:40,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:21:40,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:40,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:41,216 INFO L857 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-10-13 07:21:41,216 INFO L857 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-10-13 07:21:41,217 INFO L857 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-10-13 07:21:41,217 INFO L857 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-10-13 07:21:41,217 INFO L853 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,217 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-13 07:21:41,218 INFO L857 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-10-13 07:21:41,218 INFO L857 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-10-13 07:21:41,218 INFO L857 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-10-13 07:21:41,218 INFO L853 garLoopResultBuilder]: At program point L6347(lines 6336 6349) the Hoare annotation is: (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,218 INFO L857 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-10-13 07:21:41,218 INFO L857 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720-1(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720-2(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720-5(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720-6(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720-3(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,219 INFO L857 garLoopResultBuilder]: For program point L5720-4(lines 5720 5722) no Hoare annotation was computed. [2021-10-13 07:21:41,220 INFO L857 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-10-13 07:21:41,220 INFO L853 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,220 INFO L857 garLoopResultBuilder]: For program point L5721-2(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,220 INFO L857 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,220 INFO L857 garLoopResultBuilder]: For program point L5721-6(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,220 INFO L857 garLoopResultBuilder]: For program point L5721-4(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,221 INFO L857 garLoopResultBuilder]: For program point L5721-10(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,221 INFO L857 garLoopResultBuilder]: For program point L5721-8(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,221 INFO L857 garLoopResultBuilder]: For program point L5721-12(line 5721) no Hoare annotation was computed. [2021-10-13 07:21:41,221 INFO L857 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-10-13 07:21:41,221 INFO L853 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,221 INFO L860 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-10-13 07:21:41,222 INFO L857 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-10-13 07:21:41,222 INFO L853 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,222 INFO L853 garLoopResultBuilder]: At program point L6153(lines 6965 6968) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,222 INFO L857 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-10-13 07:21:41,222 INFO L857 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-10-13 07:21:41,222 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-13 07:21:41,223 INFO L857 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-10-13 07:21:41,223 INFO L857 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-10-13 07:21:41,223 INFO L853 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,223 INFO L857 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-10-13 07:21:41,223 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-13 07:21:41,223 INFO L857 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-10-13 07:21:41,224 INFO L857 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-10-13 07:21:41,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-13 07:21:41,224 INFO L853 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,224 INFO L853 garLoopResultBuilder]: At program point L7016-1(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,224 INFO L853 garLoopResultBuilder]: At program point L7016(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,224 INFO L857 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-10-13 07:21:41,225 INFO L857 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-10-13 07:21:41,225 INFO L853 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2) (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)))))) [2021-10-13 07:21:41,225 INFO L860 garLoopResultBuilder]: At program point L5795(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,225 INFO L860 garLoopResultBuilder]: At program point L5795-1(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,225 INFO L860 garLoopResultBuilder]: At program point L5795-4(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,226 INFO L860 garLoopResultBuilder]: At program point L5795-5(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,226 INFO L860 garLoopResultBuilder]: At program point L5795-2(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,226 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-13 07:21:41,226 INFO L860 garLoopResultBuilder]: At program point L5795-3(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,226 INFO L860 garLoopResultBuilder]: At program point L5795-8(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,226 INFO L860 garLoopResultBuilder]: At program point L5795-6(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,227 INFO L860 garLoopResultBuilder]: At program point L5795-7(lines 5794 5797) the Hoare annotation is: true [2021-10-13 07:21:41,227 INFO L857 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-10-13 07:21:41,227 INFO L857 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-10-13 07:21:41,227 INFO L857 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-10-13 07:21:41,227 INFO L853 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,227 INFO L857 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-10-13 07:21:41,227 INFO L857 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-10-13 07:21:41,228 INFO L857 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-10-13 07:21:41,228 INFO L853 garLoopResultBuilder]: At program point L6326(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,228 INFO L860 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-10-13 07:21:41,228 INFO L857 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-10-13 07:21:41,228 INFO L857 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-10-13 07:21:41,228 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,229 INFO L853 garLoopResultBuilder]: At program point L5765-2(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,229 INFO L853 garLoopResultBuilder]: At program point L5765-3(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,229 INFO L853 garLoopResultBuilder]: At program point L5765(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,229 INFO L853 garLoopResultBuilder]: At program point L5765-1(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,229 INFO L853 garLoopResultBuilder]: At program point L5765-6(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,230 INFO L853 garLoopResultBuilder]: At program point L5765-4(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,230 INFO L853 garLoopResultBuilder]: At program point L5765-5(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,230 INFO L857 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-10-13 07:21:41,230 INFO L853 garLoopResultBuilder]: At program point L6922(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,230 INFO L853 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,230 INFO L857 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-10-13 07:21:41,231 INFO L857 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-10-13 07:21:41,231 INFO L857 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-10-13 07:21:41,231 INFO L857 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-10-13 07:21:41,231 INFO L857 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-10-13 07:21:41,231 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,231 INFO L853 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32))) (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)))) (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2))) [2021-10-13 07:21:41,232 INFO L857 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-10-13 07:21:41,232 INFO L857 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-10-13 07:21:41,232 INFO L857 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-10-13 07:21:41,232 INFO L857 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-10-13 07:21:41,232 INFO L857 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-10-13 07:21:41,232 INFO L853 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,233 INFO L857 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-10-13 07:21:41,233 INFO L857 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-10-13 07:21:41,233 INFO L857 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-10-13 07:21:41,233 INFO L853 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,233 INFO L857 garLoopResultBuilder]: For program point L6332-2(line 6332) no Hoare annotation was computed. [2021-10-13 07:21:41,233 INFO L857 garLoopResultBuilder]: For program point L6332-1(line 6332) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6332(line 6332) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6332-5(line 6332) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6332-4(line 6332) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6332-3(line 6332) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-10-13 07:21:41,234 INFO L857 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-10-13 07:21:41,235 INFO L853 garLoopResultBuilder]: At program point L6861(lines 6853 6863) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,235 INFO L857 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-10-13 07:21:41,235 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,235 INFO L857 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-10-13 07:21:41,235 INFO L857 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-10-13 07:21:41,235 INFO L857 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-10-13 07:21:41,236 INFO L853 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,236 INFO L853 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,236 INFO L857 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-10-13 07:21:41,236 INFO L857 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-10-13 07:21:41,236 INFO L857 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-10-13 07:21:41,236 INFO L853 garLoopResultBuilder]: At program point L5840-1(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,237 INFO L853 garLoopResultBuilder]: At program point L5840-2(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,237 INFO L853 garLoopResultBuilder]: At program point L5840(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,237 INFO L853 garLoopResultBuilder]: At program point L5840-3(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,237 INFO L857 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-10-13 07:21:41,237 INFO L857 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-10-13 07:21:41,237 INFO L857 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L857 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L857 garLoopResultBuilder]: For program point L6965(lines 6964 6982) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L857 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L857 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L857 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-10-13 07:21:41,238 INFO L853 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,239 INFO L857 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-10-13 07:21:41,239 INFO L857 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-10-13 07:21:41,239 INFO L857 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-10-13 07:21:41,239 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,239 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,239 INFO L857 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,240 INFO L857 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,240 INFO L857 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,240 INFO L857 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,240 INFO L857 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,240 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-13 07:21:41,240 INFO L853 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,241 INFO L857 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,241 INFO L857 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-10-13 07:21:41,241 INFO L857 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2021-10-13 07:21:41,241 INFO L857 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-10-13 07:21:41,241 INFO L857 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-10-13 07:21:41,241 INFO L853 garLoopResultBuilder]: At program point L5781(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,242 INFO L853 garLoopResultBuilder]: At program point L5781-1(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-13 07:21:41,242 INFO L857 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-10-13 07:21:41,242 INFO L857 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-10-13 07:21:41,242 INFO L857 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-10-13 07:21:41,242 INFO L857 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-10-13 07:21:41,246 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:21:41,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:21:41 BoogieIcfgContainer [2021-10-13 07:21:41,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:21:41,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:21:41,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:21:41,275 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:21:41,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:05" (3/4) ... [2021-10-13 07:21:41,278 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:21:41,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-10-13 07:21:41,312 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-13 07:21:41,315 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 07:21:41,318 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:21:41,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:21:41,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) [2021-10-13 07:21:41,363 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) [2021-10-13 07:21:41,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 [2021-10-13 07:21:41,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-10-13 07:21:41,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-10-13 07:21:41,679 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:21:41,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:21:41,681 INFO L168 Benchmark]: Toolchain (without parser) took 41711.71 ms. Allocated memory was 54.5 MB in the beginning and 398.5 MB in the end (delta: 343.9 MB). Free memory was 33.5 MB in the beginning and 126.2 MB in the end (delta: -92.7 MB). Peak memory consumption was 249.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,682 INFO L168 Benchmark]: CDTParser took 6.08 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:21:41,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1983.69 ms. Allocated memory was 54.5 MB in the beginning and 104.9 MB in the end (delta: 50.3 MB). Free memory was 33.4 MB in the beginning and 47.5 MB in the end (delta: -14.2 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 269.51 ms. Allocated memory is still 104.9 MB. Free memory was 47.5 MB in the beginning and 38.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,683 INFO L168 Benchmark]: Boogie Preprocessor took 172.07 ms. Allocated memory was 104.9 MB in the beginning and 174.1 MB in the end (delta: 69.2 MB). Free memory was 38.6 MB in the beginning and 113.3 MB in the end (delta: -74.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,684 INFO L168 Benchmark]: RCFGBuilder took 3011.47 ms. Allocated memory was 174.1 MB in the beginning and 293.6 MB in the end (delta: 119.5 MB). Free memory was 113.2 MB in the beginning and 227.2 MB in the end (delta: -114.0 MB). Peak memory consumption was 90.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,684 INFO L168 Benchmark]: TraceAbstraction took 35862.15 ms. Allocated memory was 293.6 MB in the beginning and 398.5 MB in the end (delta: 104.9 MB). Free memory was 226.1 MB in the beginning and 282.4 MB in the end (delta: -56.2 MB). Peak memory consumption was 227.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,685 INFO L168 Benchmark]: Witness Printer took 405.29 ms. Allocated memory is still 398.5 MB. Free memory was 282.4 MB in the beginning and 126.2 MB in the end (delta: 156.2 MB). Peak memory consumption was 155.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:41,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 6.08 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1983.69 ms. Allocated memory was 54.5 MB in the beginning and 104.9 MB in the end (delta: 50.3 MB). Free memory was 33.4 MB in the beginning and 47.5 MB in the end (delta: -14.2 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 269.51 ms. Allocated memory is still 104.9 MB. Free memory was 47.5 MB in the beginning and 38.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 172.07 ms. Allocated memory was 104.9 MB in the beginning and 174.1 MB in the end (delta: 69.2 MB). Free memory was 38.6 MB in the beginning and 113.3 MB in the end (delta: -74.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3011.47 ms. Allocated memory was 174.1 MB in the beginning and 293.6 MB in the end (delta: 119.5 MB). Free memory was 113.2 MB in the beginning and 227.2 MB in the end (delta: -114.0 MB). Peak memory consumption was 90.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35862.15 ms. Allocated memory was 293.6 MB in the beginning and 398.5 MB in the end (delta: 104.9 MB). Free memory was 226.1 MB in the beginning and 282.4 MB in the end (delta: -56.2 MB). Peak memory consumption was 227.9 MB. Max. memory is 16.1 GB. * Witness Printer took 405.29 ms. Allocated memory is still 398.5 MB. Free memory was 282.4 MB in the beginning and 126.2 MB in the end (delta: 156.2 MB). Peak memory consumption was 155.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 157 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 35757.9ms, OverallIterations: 10, TraceHistogramMax: 3, EmptinessCheckTime: 44.0ms, AutomataDifference: 1651.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 893.5ms, InitialAbstractionConstructionTime: 23.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2389 SDtfs, 2554 SDslu, 3244 SDs, 0 SdLazy, 89 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1064.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2149 GetRequests, 2074 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1150.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 200.2ms AutomataMinimizationTime, 10 MinimizatonAttempts, 669 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 48 LocationsWithAnnotation, 48 PreInvPairs, 149 NumberOfFragments, 610 HoareAnnotationTreeSize, 48 FomulaSimplifications, 5047 FormulaSimplificationTreeSizeReduction, 427.0ms HoareSimplificationTime, 48 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 454.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1156.0ms SsaConstructionTime, 12544.2ms SatisfiabilityAnalysisTime, 8138.1ms InterpolantComputationTime, 1089 NumberOfCodeBlocks, 1089 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2138 ConstructedInterpolants, 0 QuantifiedInterpolants, 3207 SizeOfPredicates, 55 NumberOfNonLiveVariables, 25760 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 40 InterpolantComputations, 20 PerfectInterpolantSequences, 140/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6965]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6336]: Loop Invariant Derived loop invariant: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6853]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:21:41,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d61f1d91-2bf3-42b1-9733-69566d420c44/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...