./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs --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 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:38:37,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:38:37,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:38:37,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:38:37,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:38:37,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:38:37,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:38:37,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:38:37,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:38:37,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:38:37,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:38:37,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:38:37,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:38:37,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:38:37,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:38:37,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:38:37,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:38:37,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:38:37,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:38:37,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:38:37,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:38:37,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:38:37,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:38:37,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:38:37,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:38:37,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:38:37,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:38:37,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:38:37,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:38:37,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:38:37,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:38:37,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:38:37,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:38:37,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:38:37,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:38:37,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:38:37,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:38:37,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:38:37,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:38:37,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:38:37,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:38:37,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:38:37,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:38:37,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:38:37,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:38:37,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:38:37,777 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:38:37,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:38:37,777 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:38:37,777 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:38:37,778 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:38:37,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:38:37,779 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:38:37,779 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:38:37,779 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:38:37,780 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:38:37,780 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:38:37,780 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:38:37,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:38:37,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:38:37,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:38:37,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:38:37,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:38:37,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:38:37,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:38:37,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:38:37,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:38:37,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:38:37,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:38:37,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:38:37,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:38:37,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:38:37,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:38:37,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:38:37,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:38:37,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:38:37,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:38:37,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:38:37,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:38:37,788 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2021-11-19 13:38:38,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:38:38,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:38:38,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:38:38,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:38:38,126 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:38:38,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-19 13:38:38,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/02d0b7388/fb211a371de143829a0b286c3fe4bec5/FLAGf6cf0f73a [2021-11-19 13:38:39,261 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:38:39,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-19 13:38:39,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/02d0b7388/fb211a371de143829a0b286c3fe4bec5/FLAGf6cf0f73a [2021-11-19 13:38:39,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/02d0b7388/fb211a371de143829a0b286c3fe4bec5 [2021-11-19 13:38:39,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:38:39,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:38:39,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:38:39,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:38:39,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:38:39,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:38:39" (1/1) ... [2021-11-19 13:38:39,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2468de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:39, skipping insertion in model container [2021-11-19 13:38:39,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:38:39" (1/1) ... [2021-11-19 13:38:39,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:38:39,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:38:42,112 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:38:42,137 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:38:42,891 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:38:42,901 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:38:43,759 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-19 13:38:43,762 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-19 13:38:43,788 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:38:43,844 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:38:43,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12d28b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:43, skipping insertion in model container [2021-11-19 13:38:43,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:38:43,845 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:38:43,847 INFO L158 Benchmark]: Toolchain (without parser) took 4236.99ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 53.7MB in the beginning and 44.1MB in the end (delta: 9.6MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2021-11-19 13:38:43,848 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:38:43,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4234.46ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 44.1MB in the end (delta: 9.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2021-11-19 13:38:43,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4234.46ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 44.1MB in the end (delta: 9.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4820]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs --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 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:38:46,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:38:46,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:38:46,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:38:46,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:38:46,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:38:46,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:38:46,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:38:46,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:38:46,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:38:46,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:38:46,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:38:46,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:38:46,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:38:46,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:38:46,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:38:46,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:38:46,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:38:46,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:38:46,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:38:46,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:38:46,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:38:46,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:38:46,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:38:46,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:38:46,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:38:46,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:38:46,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:38:46,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:38:46,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:38:46,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:38:46,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:38:46,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:38:46,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:38:46,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:38:46,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:38:46,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:38:46,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:38:46,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:38:46,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:38:46,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:38:46,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:38:46,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:38:46,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:38:46,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:38:46,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:38:46,411 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:38:46,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:38:46,412 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:38:46,412 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:38:46,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:38:46,412 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:38:46,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:38:46,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:38:46,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:38:46,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:38:46,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:38:46,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:38:46,416 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:38:46,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:38:46,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:38:46,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:38:46,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:38:46,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:38:46,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:38:46,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:38:46,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:38:46,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:38:46,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:38:46,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:38:46,419 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:38:46,419 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:38:46,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:38:46,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:38:46,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:38:46,420 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2021-11-19 13:38:46,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:38:46,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:38:46,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:38:46,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:38:46,814 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:38:46,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-19 13:38:46,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/02111cf06/6a83278535c143a1a7255921e14fa348/FLAG6b3e35744 [2021-11-19 13:38:48,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:38:48,058 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-19 13:38:48,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/02111cf06/6a83278535c143a1a7255921e14fa348/FLAG6b3e35744 [2021-11-19 13:38:48,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/data/02111cf06/6a83278535c143a1a7255921e14fa348 [2021-11-19 13:38:48,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:38:48,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:38:48,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:38:48,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:38:48,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:38:48,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:38:48" (1/1) ... [2021-11-19 13:38:48,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73645127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:48, skipping insertion in model container [2021-11-19 13:38:48,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:38:48" (1/1) ... [2021-11-19 13:38:48,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:38:48,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:38:52,601 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-19 13:38:52,604 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-19 13:38:52,665 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:38:52,703 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:38:52,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:38:53,302 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-19 13:38:53,304 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-19 13:38:53,312 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:38:53,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:38:53,888 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-19 13:38:53,888 WARN L230 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_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-19 13:38:53,901 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:38:54,166 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:38:54,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54 WrapperNode [2021-11-19 13:38:54,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:38:54,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:38:54,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:38:54,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:38:54,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:54,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:54,611 INFO L137 Inliner]: procedures = 565, calls = 3616, calls flagged for inlining = 270, calls inlined = 246, statements flattened = 8609 [2021-11-19 13:38:54,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:38:54,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:38:54,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:38:54,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:38:54,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:54,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:54,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:54,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:54,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:55,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:55,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:55,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:38:55,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:38:55,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:38:55,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:38:55,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (1/1) ... [2021-11-19 13:38:55,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:38:55,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:55,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:38:55,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:38:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2021-11-19 13:38:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2021-11-19 13:38:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2021-11-19 13:38:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2021-11-19 13:38:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:38:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:38:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2021-11-19 13:38:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2021-11-19 13:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2021-11-19 13:38:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2021-11-19 13:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-19 13:38:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-19 13:38:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:38:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2021-11-19 13:38:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2021-11-19 13:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2021-11-19 13:38:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2021-11-19 13:38:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-19 13:38:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-19 13:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2021-11-19 13:38:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2021-11-19 13:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-11-19 13:38:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-11-19 13:38:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2021-11-19 13:38:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2021-11-19 13:38:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-19 13:38:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-19 13:38:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2021-11-19 13:38:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2021-11-19 13:38:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-11-19 13:38:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-11-19 13:38:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2021-11-19 13:38:55,230 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2021-11-19 13:38:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2021-11-19 13:38:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2021-11-19 13:38:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2021-11-19 13:38:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2021-11-19 13:38:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2021-11-19 13:38:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2021-11-19 13:38:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2021-11-19 13:38:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2021-11-19 13:38:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 13:38:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2021-11-19 13:38:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2021-11-19 13:38:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2021-11-19 13:38:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2021-11-19 13:38:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:38:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:38:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-19 13:38:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-19 13:38:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:38:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:38:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:38:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2021-11-19 13:38:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2021-11-19 13:38:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 13:38:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:38:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-19 13:38:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-19 13:38:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:38:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2021-11-19 13:38:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2021-11-19 13:38:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2021-11-19 13:38:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2021-11-19 13:38:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 13:38:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 13:38:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 13:38:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 13:38:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-11-19 13:38:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-11-19 13:38:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2021-11-19 13:38:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2021-11-19 13:38:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2021-11-19 13:38:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2021-11-19 13:38:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-19 13:38:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-19 13:38:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2021-11-19 13:38:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2021-11-19 13:38:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2021-11-19 13:38:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2021-11-19 13:38:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 13:38:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 13:38:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2021-11-19 13:38:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2021-11-19 13:38:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 13:38:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 13:38:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2021-11-19 13:38:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2021-11-19 13:38:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2021-11-19 13:38:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2021-11-19 13:38:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2021-11-19 13:38:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2021-11-19 13:38:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:38:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:38:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2021-11-19 13:38:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2021-11-19 13:38:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2021-11-19 13:38:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2021-11-19 13:38:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-11-19 13:38:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-11-19 13:38:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:38:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:38:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2021-11-19 13:38:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2021-11-19 13:38:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:38:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:38:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2021-11-19 13:38:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2021-11-19 13:38:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2021-11-19 13:38:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2021-11-19 13:38:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2021-11-19 13:38:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2021-11-19 13:38:55,254 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-19 13:38:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-19 13:38:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:38:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:38:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:38:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:38:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2021-11-19 13:38:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2021-11-19 13:38:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-19 13:38:55,264 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-19 13:38:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2021-11-19 13:38:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2021-11-19 13:38:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 13:38:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 13:38:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2021-11-19 13:38:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2021-11-19 13:38:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:38:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-19 13:38:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-19 13:38:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:38:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:38:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:38:55,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:38:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-19 13:38:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-19 13:38:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 13:38:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 13:38:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-19 13:38:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-19 13:38:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-19 13:38:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:38:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:38:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:38:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:38:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 13:38:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2021-11-19 13:38:55,268 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2021-11-19 13:38:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:38:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:38:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:38:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-19 13:38:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-19 13:38:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:38:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:38:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2021-11-19 13:38:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2021-11-19 13:38:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 13:38:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 13:38:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2021-11-19 13:38:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2021-11-19 13:38:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2021-11-19 13:38:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2021-11-19 13:38:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-19 13:38:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-19 13:38:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 13:38:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 13:38:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2021-11-19 13:38:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2021-11-19 13:38:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 13:38:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 13:38:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2021-11-19 13:38:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2021-11-19 13:38:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:38:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2021-11-19 13:38:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2021-11-19 13:38:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2021-11-19 13:38:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2021-11-19 13:38:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:38:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:38:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2021-11-19 13:38:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2021-11-19 13:38:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 13:38:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 13:38:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2021-11-19 13:38:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2021-11-19 13:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2021-11-19 13:38:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2021-11-19 13:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-19 13:38:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-19 13:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:38:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:38:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:38:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:38:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:38:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2021-11-19 13:38:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2021-11-19 13:38:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:38:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:38:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2021-11-19 13:38:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2021-11-19 13:38:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-11-19 13:38:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-11-19 13:38:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 13:38:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 13:38:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2021-11-19 13:38:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2021-11-19 13:38:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2021-11-19 13:38:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2021-11-19 13:38:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-19 13:38:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-19 13:38:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-19 13:38:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-19 13:38:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2021-11-19 13:38:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2021-11-19 13:38:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2021-11-19 13:38:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2021-11-19 13:38:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 13:38:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 13:38:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2021-11-19 13:38:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2021-11-19 13:38:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 13:38:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 13:38:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2021-11-19 13:38:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2021-11-19 13:38:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:38:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:38:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2021-11-19 13:38:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2021-11-19 13:38:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2021-11-19 13:38:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2021-11-19 13:38:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2021-11-19 13:38:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2021-11-19 13:38:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2021-11-19 13:38:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2021-11-19 13:38:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 13:38:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 13:38:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2021-11-19 13:38:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2021-11-19 13:38:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:38:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 13:38:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 13:38:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2021-11-19 13:38:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2021-11-19 13:38:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-19 13:38:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-19 13:38:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2021-11-19 13:38:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2021-11-19 13:38:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:38:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-19 13:38:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-19 13:38:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2021-11-19 13:38:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2021-11-19 13:38:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:38:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:38:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:38:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:38:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:38:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 13:38:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 13:38:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 13:38:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 13:38:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2021-11-19 13:38:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2021-11-19 13:38:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 13:38:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 13:38:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:38:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:38:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2021-11-19 13:38:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2021-11-19 13:38:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2021-11-19 13:38:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2021-11-19 13:38:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 13:38:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 13:38:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 13:38:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 13:38:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2021-11-19 13:38:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2021-11-19 13:38:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2021-11-19 13:38:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2021-11-19 13:38:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2021-11-19 13:38:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2021-11-19 13:38:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2021-11-19 13:38:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2021-11-19 13:38:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2021-11-19 13:38:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2021-11-19 13:38:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2021-11-19 13:38:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2021-11-19 13:38:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2021-11-19 13:38:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2021-11-19 13:38:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 13:38:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 13:38:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2021-11-19 13:38:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2021-11-19 13:38:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2021-11-19 13:38:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2021-11-19 13:38:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 13:38:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 13:38:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2021-11-19 13:38:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2021-11-19 13:38:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-19 13:38:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-19 13:38:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2021-11-19 13:38:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2021-11-19 13:38:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2021-11-19 13:38:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2021-11-19 13:38:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2021-11-19 13:38:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2021-11-19 13:38:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:38:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:38:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:38:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:38:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:38:55,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:38:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2021-11-19 13:38:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2021-11-19 13:38:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2021-11-19 13:38:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2021-11-19 13:38:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2021-11-19 13:38:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2021-11-19 13:38:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-11-19 13:38:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-11-19 13:38:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-11-19 13:38:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-11-19 13:38:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 13:38:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 13:38:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2021-11-19 13:38:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2021-11-19 13:38:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-19 13:38:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-19 13:38:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2021-11-19 13:38:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2021-11-19 13:38:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-19 13:38:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-19 13:38:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-19 13:38:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-19 13:38:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 13:38:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 13:38:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 13:38:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 13:38:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2021-11-19 13:38:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2021-11-19 13:38:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:38:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:38:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2021-11-19 13:38:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2021-11-19 13:38:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 13:38:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 13:38:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-19 13:38:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-19 13:38:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2021-11-19 13:38:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2021-11-19 13:38:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2021-11-19 13:38:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2021-11-19 13:38:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2021-11-19 13:38:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2021-11-19 13:38:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:38:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:38:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-19 13:38:55,299 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-19 13:38:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-19 13:38:56,554 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:38:56,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:38:56,798 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:39:04,128 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2021-11-19 13:40:23,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:40:25,987 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:40:26,028 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:40:26,029 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-19 13:40:26,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:40:26 BoogieIcfgContainer [2021-11-19 13:40:26,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:40:26,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:40:26,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:40:26,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:40:26,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:38:48" (1/3) ... [2021-11-19 13:40:26,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e800c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:40:26, skipping insertion in model container [2021-11-19 13:40:26,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:38:54" (2/3) ... [2021-11-19 13:40:26,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e800c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:40:26, skipping insertion in model container [2021-11-19 13:40:26,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:40:26" (3/3) ... [2021-11-19 13:40:26,048 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-19 13:40:26,055 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:40:26,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:40:26,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:40:26,159 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:40:26,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:40:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 3212 states, 2125 states have (on average 1.299294117647059) internal successors, (2761), 2175 states have internal predecessors, (2761), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) [2021-11-19 13:40:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-11-19 13:40:26,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:26,363 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:26,363 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:40:26,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:26,370 INFO L85 PathProgramCache]: Analyzing trace with hash 702184163, now seen corresponding path program 1 times [2021-11-19 13:40:26,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:26,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677486531] [2021-11-19 13:40:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:26,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:26,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:26,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:26,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:40:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:28,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:40:28,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8653 trivial. 0 not checked. [2021-11-19 13:40:30,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-19 13:40:31,633 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:31,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677486531] [2021-11-19 13:40:31,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677486531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:31,635 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:31,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:40:31,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932612401] [2021-11-19 13:40:31,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:31,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:40:31,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:31,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:40:31,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:40:31,698 INFO L87 Difference]: Start difference. First operand has 3212 states, 2125 states have (on average 1.299294117647059) internal successors, (2761), 2175 states have internal predecessors, (2761), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-19 13:40:32,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:32,005 INFO L93 Difference]: Finished difference Result 6290 states and 9131 transitions. [2021-11-19 13:40:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:40:32,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 595 [2021-11-19 13:40:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:32,072 INFO L225 Difference]: With dead ends: 6290 [2021-11-19 13:40:32,072 INFO L226 Difference]: Without dead ends: 3140 [2021-11-19 13:40:32,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1188 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:40:32,114 INFO L933 BasicCegarLoop]: 4503 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4503 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:32,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4503 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:40:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2021-11-19 13:40:32,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2021-11-19 13:40:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 2085 states have (on average 1.2719424460431654) internal successors, (2652), 2132 states have internal predecessors, (2652), 892 states have call successors, (892), 162 states have call predecessors, (892), 162 states have return successors, (892), 886 states have call predecessors, (892), 892 states have call successors, (892) [2021-11-19 13:40:32,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4436 transitions. [2021-11-19 13:40:32,434 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4436 transitions. Word has length 595 [2021-11-19 13:40:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:32,438 INFO L470 AbstractCegarLoop]: Abstraction has 3140 states and 4436 transitions. [2021-11-19 13:40:32,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-19 13:40:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4436 transitions. [2021-11-19 13:40:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-11-19 13:40:32,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:32,479 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:32,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:32,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:32,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:40:32,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash 976943777, now seen corresponding path program 1 times [2021-11-19 13:40:32,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:32,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476586804] [2021-11-19 13:40:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:32,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:32,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:32,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:32,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:40:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:35,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:40:35,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2021-11-19 13:40:36,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-19 13:40:38,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:38,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476586804] [2021-11-19 13:40:38,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476586804] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:38,319 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:38,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:40:38,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841610045] [2021-11-19 13:40:38,320 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:38,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:40:38,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:38,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:40:38,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:40:38,324 INFO L87 Difference]: Start difference. First operand 3140 states and 4436 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-19 13:40:40,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:40:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:40:41,292 INFO L93 Difference]: Finished difference Result 8994 states and 12681 transitions. [2021-11-19 13:40:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:40:41,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 595 [2021-11-19 13:40:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:40:41,361 INFO L225 Difference]: With dead ends: 8994 [2021-11-19 13:40:41,361 INFO L226 Difference]: Without dead ends: 5947 [2021-11-19 13:40:41,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:40:41,392 INFO L933 BasicCegarLoop]: 5254 mSDtfsCounter, 3925 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 9653 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:40:41,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3925 Valid, 9653 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 13:40:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-11-19 13:40:41,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 5943. [2021-11-19 13:40:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 3957 states have (on average 1.274197624462977) internal successors, (5042), 4048 states have internal predecessors, (5042), 1666 states have call successors, (1666), 319 states have call predecessors, (1666), 319 states have return successors, (1666), 1652 states have call predecessors, (1666), 1666 states have call successors, (1666) [2021-11-19 13:40:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 8374 transitions. [2021-11-19 13:40:41,811 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 8374 transitions. Word has length 595 [2021-11-19 13:40:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:40:41,816 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 8374 transitions. [2021-11-19 13:40:41,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-19 13:40:41,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 8374 transitions. [2021-11-19 13:40:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2021-11-19 13:40:41,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:40:41,859 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 44, 44, 44, 44, 44, 44, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:40:41,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:40:42,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:40:42,082 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:40:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:40:42,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1760085157, now seen corresponding path program 1 times [2021-11-19 13:40:42,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:40:42,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918493913] [2021-11-19 13:40:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:40:42,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:40:42,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:40:42,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:40:42,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:40:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:40:44,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:40:44,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:40:45,900 INFO L134 CoverageAnalysis]: Checked inductivity of 8805 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 8535 trivial. 0 not checked. [2021-11-19 13:40:45,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:40:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 8805 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8802 trivial. 0 not checked. [2021-11-19 13:40:47,469 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:40:47,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918493913] [2021-11-19 13:40:47,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918493913] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:40:47,470 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:40:47,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:40:47,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529693161] [2021-11-19 13:40:47,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:40:47,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:40:47,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:40:47,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:40:47,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:40:47,474 INFO L87 Difference]: Start difference. First operand 5943 states and 8374 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 4 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-19 13:40:49,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:06,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:06,401 INFO L93 Difference]: Finished difference Result 20201 states and 28447 transitions. [2021-11-19 13:41:06,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:06,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 4 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) Word has length 618 [2021-11-19 13:41:06,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:06,547 INFO L225 Difference]: With dead ends: 20201 [2021-11-19 13:41:06,547 INFO L226 Difference]: Without dead ends: 14351 [2021-11-19 13:41:06,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:06,588 INFO L933 BasicCegarLoop]: 6030 mSDtfsCounter, 10552 mSDsluCounter, 6730 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 1550 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10552 SdHoareTripleChecker+Valid, 12760 SdHoareTripleChecker+Invalid, 3361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1550 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:06,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10552 Valid, 12760 Invalid, 3361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1550 Valid, 1810 Invalid, 1 Unknown, 0 Unchecked, 18.1s Time] [2021-11-19 13:41:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14351 states. [2021-11-19 13:41:07,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14351 to 14347. [2021-11-19 13:41:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14347 states, 9547 states have (on average 1.277050382319053) internal successors, (12192), 9766 states have internal predecessors, (12192), 4003 states have call successors, (4003), 796 states have call predecessors, (4003), 796 states have return successors, (4003), 3971 states have call predecessors, (4003), 4003 states have call successors, (4003) [2021-11-19 13:41:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14347 states to 14347 states and 20198 transitions. [2021-11-19 13:41:07,654 INFO L78 Accepts]: Start accepts. Automaton has 14347 states and 20198 transitions. Word has length 618 [2021-11-19 13:41:07,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:07,657 INFO L470 AbstractCegarLoop]: Abstraction has 14347 states and 20198 transitions. [2021-11-19 13:41:07,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 4 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-19 13:41:07,659 INFO L276 IsEmpty]: Start isEmpty. Operand 14347 states and 20198 transitions. [2021-11-19 13:41:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-11-19 13:41:07,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:07,702 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:07,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:07,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:07,926 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:07,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:07,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1304848775, now seen corresponding path program 1 times [2021-11-19 13:41:07,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:07,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638872099] [2021-11-19 13:41:07,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:07,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:07,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:07,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:07,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:41:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:10,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:41:10,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2021-11-19 13:41:12,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-19 13:41:13,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:13,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638872099] [2021-11-19 13:41:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638872099] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:13,546 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:13,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:41:13,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938445378] [2021-11-19 13:41:13,547 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:13,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:13,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:13,558 INFO L87 Difference]: Start difference. First operand 14347 states and 20198 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-19 13:41:15,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:34,416 INFO L93 Difference]: Finished difference Result 50763 states and 71334 transitions. [2021-11-19 13:41:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:34,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) Word has length 624 [2021-11-19 13:41:34,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:34,720 INFO L225 Difference]: With dead ends: 50763 [2021-11-19 13:41:34,721 INFO L226 Difference]: Without dead ends: 36509 [2021-11-19 13:41:34,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1246 GetRequests, 1244 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:34,816 INFO L933 BasicCegarLoop]: 6038 mSDtfsCounter, 11006 mSDsluCounter, 6712 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 1654 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11006 SdHoareTripleChecker+Valid, 12750 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1654 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:34,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11006 Valid, 12750 Invalid, 3531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1654 Valid, 1876 Invalid, 1 Unknown, 0 Unchecked, 19.5s Time] [2021-11-19 13:41:35,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36509 states. [2021-11-19 13:41:37,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36509 to 36489. [2021-11-19 13:41:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36489 states, 24349 states have (on average 1.2767259435705778) internal successors, (31087), 24924 states have internal predecessors, (31087), 10055 states have call successors, (10055), 2084 states have call predecessors, (10055), 2084 states have return successors, (10059), 9971 states have call predecessors, (10059), 10055 states have call successors, (10059) [2021-11-19 13:41:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36489 states to 36489 states and 51201 transitions. [2021-11-19 13:41:37,730 INFO L78 Accepts]: Start accepts. Automaton has 36489 states and 51201 transitions. Word has length 624 [2021-11-19 13:41:37,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:37,732 INFO L470 AbstractCegarLoop]: Abstraction has 36489 states and 51201 transitions. [2021-11-19 13:41:37,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-19 13:41:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 36489 states and 51201 transitions. [2021-11-19 13:41:37,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2021-11-19 13:41:37,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:37,785 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:37,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:38,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:38,006 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:38,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1984562345, now seen corresponding path program 1 times [2021-11-19 13:41:38,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:38,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554398512] [2021-11-19 13:41:38,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:38,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:38,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:38,013 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:38,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:41:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:40,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2991 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:41:40,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2021-11-19 13:41:42,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-19 13:41:44,236 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:44,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554398512] [2021-11-19 13:41:44,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554398512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:44,237 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:44,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:41:44,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713058935] [2021-11-19 13:41:44,238 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:44,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:44,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:44,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:44,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:41:44,240 INFO L87 Difference]: Start difference. First operand 36489 states and 51201 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-19 13:41:46,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:05,904 INFO L93 Difference]: Finished difference Result 136783 states and 191647 transitions. [2021-11-19 13:42:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:42:05,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) Word has length 625 [2021-11-19 13:42:05,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:06,889 INFO L225 Difference]: With dead ends: 136783 [2021-11-19 13:42:06,889 INFO L226 Difference]: Without dead ends: 100387 [2021-11-19 13:42:07,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1248 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:42:07,061 INFO L933 BasicCegarLoop]: 6229 mSDtfsCounter, 10826 mSDsluCounter, 6708 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 1612 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10826 SdHoareTripleChecker+Valid, 12937 SdHoareTripleChecker+Invalid, 3489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1612 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:07,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10826 Valid, 12937 Invalid, 3489 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1612 Valid, 1876 Invalid, 1 Unknown, 0 Unchecked, 18.1s Time] [2021-11-19 13:42:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100387 states. [2021-11-19 13:42:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100387 to 100359. [2021-11-19 13:42:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100359 states, 67053 states have (on average 1.2760801157293484) internal successors, (85565), 68696 states have internal predecessors, (85565), 27413 states have call successors, (27413), 5892 states have call predecessors, (27413), 5892 states have return successors, (27437), 27173 states have call predecessors, (27437), 27413 states have call successors, (27437) [2021-11-19 13:42:13,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100359 states to 100359 states and 140415 transitions. [2021-11-19 13:42:13,320 INFO L78 Accepts]: Start accepts. Automaton has 100359 states and 140415 transitions. Word has length 625 [2021-11-19 13:42:13,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:13,322 INFO L470 AbstractCegarLoop]: Abstraction has 100359 states and 140415 transitions. [2021-11-19 13:42:13,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-19 13:42:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 100359 states and 140415 transitions. [2021-11-19 13:42:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2021-11-19 13:42:13,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:13,398 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:13,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:13,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:42:13,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:42:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash -730515114, now seen corresponding path program 1 times [2021-11-19 13:42:13,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:42:13,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888671802] [2021-11-19 13:42:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:13,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:42:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:42:13,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:42:13,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0cfeff-41ff-40dc-8aa2-07a0c43600ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:42:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:16,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 2973 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:42:16,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:17,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8661 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8529 trivial. 0 not checked. [2021-11-19 13:42:17,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 8661 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8661 trivial. 0 not checked. [2021-11-19 13:42:19,390 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:42:19,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888671802] [2021-11-19 13:42:19,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888671802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:42:19,391 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:42:19,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:42:19,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427575548] [2021-11-19 13:42:19,392 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:42:19,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:42:19,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:42:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:42:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:42:19,394 INFO L87 Difference]: Start difference. First operand 100359 states and 140415 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 4 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) [2021-11-19 13:42:21,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:42:41,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:41,490 INFO L93 Difference]: Finished difference Result 366057 states and 510635 transitions. [2021-11-19 13:42:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:42:41,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 4 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) Word has length 644 [2021-11-19 13:42:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:43,312 INFO L225 Difference]: With dead ends: 366057 [2021-11-19 13:42:43,313 INFO L226 Difference]: Without dead ends: 265791 [2021-11-19 13:42:43,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1284 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:42:43,643 INFO L933 BasicCegarLoop]: 7157 mSDtfsCounter, 8004 mSDsluCounter, 8297 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8004 SdHoareTripleChecker+Valid, 15454 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:43,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8004 Valid, 15454 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1878 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2021-11-19 13:42:43,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265791 states.