./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:59:26,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:59:26,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:59:26,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:59:26,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:59:26,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:59:26,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:59:26,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:59:26,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:59:26,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:59:26,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:59:26,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:59:26,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:59:26,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:59:26,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:59:26,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:59:26,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:59:26,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:59:26,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:59:26,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:59:26,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:59:26,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:59:26,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:59:26,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:59:26,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:59:26,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:59:26,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:59:26,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:59:26,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:59:26,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:59:26,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:59:26,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:59:26,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:59:26,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:59:26,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:59:26,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:59:26,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:59:26,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:59:26,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:59:26,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:59:26,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:59:26,916 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:59:26,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:59:26,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:59:26,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:59:26,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:59:26,952 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:59:26,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:59:26,952 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:59:26,953 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:59:26,953 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:59:26,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:59:26,954 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:59:26,954 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:59:26,954 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:59:26,955 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:59:26,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:59:26,955 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:59:26,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:59:26,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:59:26,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:59:26,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:59:26,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:59:26,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:59:26,958 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:59:26,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:59:26,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:59:26,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:59:26,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:59:26,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:59:26,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:59:26,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:59:26,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:59:26,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:59:26,961 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:59:26,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:59:26,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:59:26,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:59:26,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:59:26,962 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-11-19 14:59:27,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:59:27,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:59:27,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:59:27,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:59:27,365 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:59:27,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-19 14:59:27,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/e5c8f4863/c33a467d70a5455b8cb8cc6ad4d74f72/FLAGa9d05e91c [2021-11-19 14:59:29,378 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:59:29,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-19 14:59:29,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/e5c8f4863/c33a467d70a5455b8cb8cc6ad4d74f72/FLAGa9d05e91c [2021-11-19 14:59:29,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/e5c8f4863/c33a467d70a5455b8cb8cc6ad4d74f72 [2021-11-19 14:59:29,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:59:29,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:59:29,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:59:29,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:59:29,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:59:29,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:29" (1/1) ... [2021-11-19 14:59:29,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c73847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:29, skipping insertion in model container [2021-11-19 14:59:29,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:29" (1/1) ... [2021-11-19 14:59:29,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:59:30,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:59:35,257 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-19 14:59:35,414 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 14:59:35,917 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 14:59:36,287 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 14:59:38,059 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 14:59:38,088 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 14:59:38,363 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 14:59:38,369 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 14:59:38,410 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 14:59:38,417 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 14:59:38,423 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 14:59:38,429 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 14:59:38,430 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 14:59:38,433 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 14:59:38,435 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 14:59:38,436 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 14:59:38,439 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 14:59:38,557 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 14:59:38,561 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 14:59:39,038 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 14:59:40,571 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 14:59:40,821 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 14:59:40,836 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 14:59:40,836 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 14:59:40,837 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 14:59:40,876 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 14:59:40,876 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 14:59:40,877 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 14:59:40,895 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 14:59:40,895 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 14:59:40,896 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 14:59:40,896 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 14:59:40,897 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 14:59:40,898 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 14:59:41,150 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 14:59:41,252 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 14:59:41,310 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 14:59:41,330 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 14:59:41,395 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 14:59:41,401 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 14:59:42,092 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 14:59:42,158 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 14:59:42,178 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 14:59:42,213 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 14:59:42,232 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 14:59:42,251 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 14:59:42,269 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 14:59:42,286 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 14:59:42,303 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 14:59:42,469 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 14:59:42,470 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 14:59:42,884 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 14:59:42,885 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 14:59:42,919 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 14:59:42,921 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 14:59:43,006 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 14:59:43,350 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 14:59:43,379 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 14:59:43,380 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 14:59:43,380 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 14:59:43,383 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 14:59:43,436 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 14:59:43,454 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 14:59:43,463 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 14:59:43,464 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 14:59:43,479 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 14:59:43,498 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 14:59:43,500 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 14:59:43,502 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 14:59:43,505 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 14:59:43,507 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 14:59:44,861 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 14:59:44,878 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 14:59:44,882 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 14:59:45,067 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 14:59:45,275 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 14:59:45,626 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 14:59:47,403 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:59:47,468 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 14:59:47,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5002dddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:47, skipping insertion in model container [2021-11-19 14:59:47,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:59:47,470 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:59:47,473 INFO L158 Benchmark]: Toolchain (without parser) took 17589.10ms. Allocated memory was 138.4MB in the beginning and 310.4MB in the end (delta: 172.0MB). Free memory was 78.2MB in the beginning and 182.8MB in the end (delta: -104.6MB). Peak memory consumption was 196.2MB. Max. memory is 16.1GB. [2021-11-19 14:59:47,474 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:59:47,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 17582.35ms. Allocated memory was 138.4MB in the beginning and 310.4MB in the end (delta: 172.0MB). Free memory was 78.2MB in the beginning and 182.8MB in the end (delta: -104.6MB). Peak memory consumption was 196.2MB. Max. memory is 16.1GB. [2021-11-19 14:59:47,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 17582.35ms. Allocated memory was 138.4MB in the beginning and 310.4MB in the end (delta: 172.0MB). Free memory was 78.2MB in the beginning and 182.8MB in the end (delta: -104.6MB). Peak memory consumption was 196.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6679]: 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:59:49,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:59:49,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:59:50,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:59:50,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:59:50,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:59:50,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:59:50,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:59:50,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:59:50,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:59:50,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:59:50,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:59:50,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:59:50,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:59:50,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:59:50,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:59:50,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:59:50,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:59:50,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:59:50,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:59:50,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:59:50,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:59:50,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:59:50,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:59:50,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:59:50,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:59:50,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:59:50,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:59:50,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:59:50,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:59:50,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:59:50,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:59:50,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:59:50,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:59:50,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:59:50,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:59:50,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:59:50,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:59:50,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:59:50,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:59:50,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:59:50,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:59:50,149 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:59:50,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:59:50,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:59:50,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:59:50,151 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:59:50,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:59:50,152 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:59:50,152 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:59:50,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:59:50,152 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:59:50,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:59:50,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:59:50,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:59:50,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:59:50,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:59:50,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:59:50,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:59:50,157 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:59:50,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:59:50,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:59:50,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:59:50,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:59:50,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:59:50,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:59:50,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:59:50,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:59:50,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:59:50,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:59:50,159 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:59:50,159 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:59:50,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:59:50,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:59:50,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:59:50,160 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ced8072e726df9636846e62f3ac2249f60e5953eb5c965606e402590bf54d90 [2021-11-19 14:59:50,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:59:50,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:59:50,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:59:50,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:59:50,659 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:59:50,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-19 14:59:50,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/fd0f1bdbb/840773b02b5b47c095dd530bc267124a/FLAGd63718fb8 [2021-11-19 14:59:52,762 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:59:52,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-19 14:59:52,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/fd0f1bdbb/840773b02b5b47c095dd530bc267124a/FLAGd63718fb8 [2021-11-19 14:59:53,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/data/fd0f1bdbb/840773b02b5b47c095dd530bc267124a [2021-11-19 14:59:53,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:59:53,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:59:53,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:59:53,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:59:53,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:59:53,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:53" (1/1) ... [2021-11-19 14:59:53,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2092637e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:53, skipping insertion in model container [2021-11-19 14:59:53,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:53" (1/1) ... [2021-11-19 14:59:53,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:59:53,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:59:58,160 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-19 15:00:10,579 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:10,633 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:00:10,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:00:11,246 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-19 15:00:12,665 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:12,698 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:00:13,080 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_bd7852ab-0bda-4412-9642-d17f0b0c0b04/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i[281164,281177] [2021-11-19 15:00:14,674 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:00:15,195 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:00:15,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15 WrapperNode [2021-11-19 15:00:15,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:00:15,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:00:15,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:00:15,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:00:15,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:15,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,099 INFO L137 Inliner]: procedures = 910, calls = 20421, calls flagged for inlining = 345, calls inlined = 11, statements flattened = 2876 [2021-11-19 15:00:16,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:00:16,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:00:16,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:00:16,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:00:16,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:00:16,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:00:16,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:00:16,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:00:16,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (1/1) ... [2021-11-19 15:00:16,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:00:16,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:00:16,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:00:16,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:00:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:00:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:00:16,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:00:16,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:00:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:00:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-19 15:00:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-19 15:00:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:00:16,359 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_open [2021-11-19 15:00:16,359 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_open [2021-11-19 15:00:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:00:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:00:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:00:16,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-11-19 15:00:16,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-11-19 15:00:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-19 15:00:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-19 15:00:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2021-11-19 15:00:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2021-11-19 15:00:16,361 INFO L130 BoogieDeclarations]: Found specification of procedure drbd_proc_release [2021-11-19 15:00:16,361 INFO L138 BoogieDeclarations]: Found implementation of procedure drbd_proc_release [2021-11-19 15:00:16,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:00:16,862 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:00:16,865 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:00:17,119 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 15:02:24,457 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-11-19 15:02:24,457 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-11-19 15:02:24,504 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:02:24,510 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:02:24,510 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:02:24,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:02:24 BoogieIcfgContainer [2021-11-19 15:02:24,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:02:24,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:02:24,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:02:24,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:02:24,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:59:53" (1/3) ... [2021-11-19 15:02:24,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d88bb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:02:24, skipping insertion in model container [2021-11-19 15:02:24,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:15" (2/3) ... [2021-11-19 15:02:24,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d88bb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:02:24, skipping insertion in model container [2021-11-19 15:02:24,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:02:24" (3/3) ... [2021-11-19 15:02:24,521 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-drbd-drbd.ko.cil.out-2.i [2021-11-19 15:02:24,527 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:02:24,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:02:24,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:02:24,581 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 15:02:24,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:02:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 15:02:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 15:02:24,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:24,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:24,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:02:24,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash -290783480, now seen corresponding path program 1 times [2021-11-19 15:02:24,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:02:24,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223205836] [2021-11-19 15:02:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:24,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:02:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:02:24,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:02:24,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:02:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:28,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 5740 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:02:28,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:28,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:28,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:02:28,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223205836] [2021-11-19 15:02:28,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223205836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:28,570 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:28,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 15:02:28,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242517130] [2021-11-19 15:02:28,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:28,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:02:28,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:02:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:02:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:02:28,606 INFO L87 Difference]: Start difference. First operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 49 states have internal predecessors, (60), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:02:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:28,675 INFO L93 Difference]: Finished difference Result 167 states and 216 transitions. [2021-11-19 15:02:28,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:02:28,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-19 15:02:28,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:28,688 INFO L225 Difference]: With dead ends: 167 [2021-11-19 15:02:28,689 INFO L226 Difference]: Without dead ends: 103 [2021-11-19 15:02:28,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 15:02:28,696 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:28,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:02:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-19 15:02:28,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2021-11-19 15:02:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2021-11-19 15:02:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2021-11-19 15:02:28,745 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 122 transitions. Word has length 10 [2021-11-19 15:02:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:28,745 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 122 transitions. [2021-11-19 15:02:28,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:02:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 122 transitions. [2021-11-19 15:02:28,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 15:02:28,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:28,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:28,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:28,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:02:28,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:02:28,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:28,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2049937130, now seen corresponding path program 1 times [2021-11-19 15:02:28,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:02:28,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117504676] [2021-11-19 15:02:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:28,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:02:28,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:02:28,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:02:29,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:02:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:32,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 5765 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:02:32,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:32,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:32,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:02:32,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117504676] [2021-11-19 15:02:32,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117504676] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:32,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:32,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:02:32,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237471432] [2021-11-19 15:02:32,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:32,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:02:32,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:02:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:02:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:02:32,781 INFO L87 Difference]: Start difference. First operand 100 states and 122 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:02:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:32,905 INFO L93 Difference]: Finished difference Result 229 states and 295 transitions. [2021-11-19 15:02:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:02:32,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-19 15:02:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:32,909 INFO L225 Difference]: With dead ends: 229 [2021-11-19 15:02:32,909 INFO L226 Difference]: Without dead ends: 131 [2021-11-19 15:02:32,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 15:02:32,912 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 15 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:32,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 171 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:02:32,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-19 15:02:32,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-19 15:02:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.3240740740740742) internal successors, (143), 109 states have internal predecessors, (143), 12 states have call successors, (12), 11 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2021-11-19 15:02:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 167 transitions. [2021-11-19 15:02:32,934 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 167 transitions. Word has length 19 [2021-11-19 15:02:32,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:32,935 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 167 transitions. [2021-11-19 15:02:32,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:02:32,935 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 167 transitions. [2021-11-19 15:02:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 15:02:32,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:32,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:33,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:33,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:02:33,138 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:02:33,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1156991827, now seen corresponding path program 1 times [2021-11-19 15:02:33,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:02:33,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108900406] [2021-11-19 15:02:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:33,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:02:33,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:02:33,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:02:33,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:02:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:02:36,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 5781 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:02:36,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:02:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:37,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:02:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:02:37,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:02:37,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108900406] [2021-11-19 15:02:37,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108900406] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:02:37,557 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:02:37,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 15:02:37,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779887428] [2021-11-19 15:02:37,557 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:02:37,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:02:37,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:02:37,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:02:37,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:02:37,559 INFO L87 Difference]: Start difference. First operand 131 states and 167 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 15:02:37,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:02:37,739 INFO L93 Difference]: Finished difference Result 213 states and 271 transitions. [2021-11-19 15:02:37,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 15:02:37,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-11-19 15:02:37,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:02:37,743 INFO L225 Difference]: With dead ends: 213 [2021-11-19 15:02:37,743 INFO L226 Difference]: Without dead ends: 145 [2021-11-19 15:02:37,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:02:37,746 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 11 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:02:37,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 489 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:02:37,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-19 15:02:37,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 141. [2021-11-19 15:02:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 118 states have internal predecessors, (151), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2021-11-19 15:02:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 177 transitions. [2021-11-19 15:02:37,766 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 177 transitions. Word has length 29 [2021-11-19 15:02:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:02:37,766 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 177 transitions. [2021-11-19 15:02:37,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 15:02:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 177 transitions. [2021-11-19 15:02:37,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 15:02:37,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:02:37,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:02:37,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:02:37,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:02:37,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:02:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:02:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash -616999541, now seen corresponding path program 1 times [2021-11-19 15:02:38,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:02:38,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019579310] [2021-11-19 15:02:38,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:02:38,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:02:38,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:02:38,001 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:02:38,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7852ab-0bda-4412-9642-d17f0b0c0b04/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process