./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH --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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:17:28,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:17:28,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:17:28,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:17:28,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:17:28,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:17:28,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:17:28,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:17:28,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:17:28,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:17:28,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:17:28,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:17:28,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:17:28,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:17:28,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:17:28,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:17:28,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:17:28,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:17:28,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:17:29,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:17:29,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:17:29,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:17:29,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:17:29,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:17:29,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:17:29,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:17:29,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:17:29,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:17:29,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:17:29,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:17:29,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:17:29,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:17:29,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:17:29,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:17:29,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:17:29,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:17:29,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:17:29,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:17:29,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:17:29,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:17:29,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:17:29,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:17:29,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:17:29,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:17:29,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:17:29,081 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:17:29,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:17:29,081 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:17:29,081 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:17:29,082 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:17:29,088 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:17:29,088 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:17:29,089 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:17:29,089 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:17:29,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:17:29,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:17:29,090 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:17:29,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:17:29,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:17:29,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:17:29,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:17:29,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:17:29,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:17:29,092 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:17:29,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:17:29,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:17:29,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:17:29,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:17:29,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:17:29,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:29,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:17:29,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:17:29,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:17:29,095 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:17:29,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:17:29,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:17:29,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:17:29,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:17:29,097 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_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-11-03 04:17:29,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:17:29,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:17:29,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:17:29,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:17:29,433 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:17:29,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-03 04:17:29,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/4a68b14e6/bb0343619b624de2b6848f77577997df/FLAGddb467e26 [2021-11-03 04:17:30,368 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:17:30,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-03 04:17:30,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/4a68b14e6/bb0343619b624de2b6848f77577997df/FLAGddb467e26 [2021-11-03 04:17:30,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/4a68b14e6/bb0343619b624de2b6848f77577997df [2021-11-03 04:17:30,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:17:30,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:17:30,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:30,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:17:30,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:17:30,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:30" (1/1) ... [2021-11-03 04:17:30,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d52a266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:30, skipping insertion in model container [2021-11-03 04:17:30,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:30" (1/1) ... [2021-11-03 04:17:30,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:17:30,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:31,575 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:31,875 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:31,926 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:31,935 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:31,947 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:31,969 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,018 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,068 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,069 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,075 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,091 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,092 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,092 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,103 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,113 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,120 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,257 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,286 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,317 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,327 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,344 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,346 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,346 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,347 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,380 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,381 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,382 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,383 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,383 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,389 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,389 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,394 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,397 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,398 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,399 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,399 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,400 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,528 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,534 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,538 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,539 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,543 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,545 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,546 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,552 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,558 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,582 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,587 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,597 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:32,653 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-03 04:17:32,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:32,729 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) [2021-11-03 04:17:32,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65efb069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:32, skipping insertion in model container [2021-11-03 04:17:32,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:32,730 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:17:32,732 INFO L168 Benchmark]: Toolchain (without parser) took 2244.37 ms. Allocated memory is still 140.5 MB. Free memory was 115.1 MB in the beginning and 71.0 MB in the end (delta: 44.1 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:17:32,733 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:17:32,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2241.83 ms. Allocated memory is still 140.5 MB. Free memory was 114.3 MB in the beginning and 71.0 MB in the end (delta: 43.3 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:17:32,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2241.83 ms. Allocated memory is still 140.5 MB. Free memory was 114.3 MB in the beginning and 71.0 MB in the end (delta: 43.3 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4022]: 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_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH --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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:17:34,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:17:34,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:17:34,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:17:34,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:17:34,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:17:34,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:17:34,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:17:34,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:17:34,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:17:34,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:17:34,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:17:34,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:17:34,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:17:34,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:17:34,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:17:34,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:17:34,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:17:34,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:17:34,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:17:34,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:17:34,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:17:34,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:17:34,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:17:34,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:17:34,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:17:34,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:17:34,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:17:34,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:17:34,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:17:34,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:17:34,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:17:34,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:17:34,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:17:34,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:17:34,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:17:34,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:17:34,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:17:34,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:17:34,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:17:34,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:17:34,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:17:34,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:17:34,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:17:34,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:17:34,985 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:17:34,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:17:34,986 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:17:34,986 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:17:34,986 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:17:34,986 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:17:34,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:17:34,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:17:34,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:17:34,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:17:34,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:17:34,989 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:17:34,989 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:17:34,990 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:17:34,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:17:34,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:17:34,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:17:34,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:17:34,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:17:34,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:17:34,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:34,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:17:34,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:17:34,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:17:34,992 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:17:34,992 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:17:34,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:17:34,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:17:34,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:17:34,993 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_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-11-03 04:17:35,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:17:35,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:17:35,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:17:35,363 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:17:35,363 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:17:35,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-03 04:17:35,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/3a4698f67/8003abbb38184a5f93607b21ebd87f34/FLAGeb1a64d31 [2021-11-03 04:17:36,395 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:17:36,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-03 04:17:36,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/3a4698f67/8003abbb38184a5f93607b21ebd87f34/FLAGeb1a64d31 [2021-11-03 04:17:36,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/data/3a4698f67/8003abbb38184a5f93607b21ebd87f34 [2021-11-03 04:17:36,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:17:36,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:17:36,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:36,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:17:36,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:17:36,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:36" (1/1) ... [2021-11-03 04:17:36,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495d5070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:36, skipping insertion in model container [2021-11-03 04:17:36,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:36" (1/1) ... [2021-11-03 04:17:36,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:17:37,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:39,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-03 04:17:39,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:39,260 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:17:39,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:39,710 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-03 04:17:39,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:39,733 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:17:40,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-03 04:17:40,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:40,397 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:17:40,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40 WrapperNode [2021-11-03 04:17:40,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:40,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:17:40,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:17:40,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:17:40,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:40,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:40,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:17:40,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:17:40,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:17:40,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:17:40,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:40,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:40,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:40,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:41,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:41,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:41,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:41,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:17:41,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:17:41,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:17:41,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:17:41,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (1/1) ... [2021-11-03 04:17:41,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:41,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:17:41,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:17:41,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:17:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:17:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:17:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:17:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:17:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:17:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:17:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:17:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-11-03 04:17:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:17:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:17:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UINT [2021-11-03 04:17:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_UINT [2021-11-03 04:17:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:17:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:17:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:17:42,426 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,463 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,469 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,575 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,591 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,595 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,614 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,617 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:17:42,630 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:20:31,495 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1046: assume false; [2021-11-03 04:20:31,496 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1047: assume !false; [2021-11-03 04:20:31,496 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##503: assume !false; [2021-11-03 04:20:31,497 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##502: assume false; [2021-11-03 04:20:31,497 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-03 04:20:31,497 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-03 04:20:31,497 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##589: assume false; [2021-11-03 04:20:31,498 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##590: assume !false; [2021-11-03 04:20:31,498 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##627: assume !false; [2021-11-03 04:20:31,498 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##626: assume false; [2021-11-03 04:20:31,498 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1663: assume false; [2021-11-03 04:20:31,498 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1664: assume !false; [2021-11-03 04:20:31,499 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1409: assume false; [2021-11-03 04:20:31,499 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1410: assume !false; [2021-11-03 04:20:31,499 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1462: assume false; [2021-11-03 04:20:31,499 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1463: assume !false; [2021-11-03 04:20:31,499 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##958: assume !false; [2021-11-03 04:20:31,500 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##957: assume false; [2021-11-03 04:20:31,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:20:31,534 INFO L299 CfgBuilder]: Removed 1773 assume(true) statements. [2021-11-03 04:20:31,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:31 BoogieIcfgContainer [2021-11-03 04:20:31,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:20:31,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:20:31,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:20:31,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:20:31,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:17:36" (1/3) ... [2021-11-03 04:20:31,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66650e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:20:31, skipping insertion in model container [2021-11-03 04:20:31,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:40" (2/3) ... [2021-11-03 04:20:31,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66650e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:20:31, skipping insertion in model container [2021-11-03 04:20:31,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:31" (3/3) ... [2021-11-03 04:20:31,548 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-03 04:20:31,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:20:31,553 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 04:20:31,622 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:20:31,631 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 [2021-11-03 04:20:31,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 04:20:31,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 1914 states, 1903 states have (on average 1.4009458749343142) internal successors, (2666), 1908 states have internal predecessors, (2666), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-03 04:20:31,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 04:20:31,696 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:31,697 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:31,697 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:20:31,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:31,703 INFO L85 PathProgramCache]: Analyzing trace with hash -86151642, now seen corresponding path program 1 times [2021-11-03 04:20:31,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:31,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481491053] [2021-11-03 04:20:31,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:31,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:31,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:31,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:31,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:20:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:36,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:20:36,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:37,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:37,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:37,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481491053] [2021-11-03 04:20:37,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481491053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:37,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:37,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:20:37,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328772179] [2021-11-03 04:20:37,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:37,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:37,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:37,321 INFO L87 Difference]: Start difference. First operand has 1914 states, 1903 states have (on average 1.4009458749343142) internal successors, (2666), 1908 states have internal predecessors, (2666), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:37,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:37,683 INFO L93 Difference]: Finished difference Result 5669 states and 7923 transitions. [2021-11-03 04:20:37,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-03 04:20:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:37,727 INFO L225 Difference]: With dead ends: 5669 [2021-11-03 04:20:37,730 INFO L226 Difference]: Without dead ends: 3738 [2021-11-03 04:20:37,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:37,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2021-11-03 04:20:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3730. [2021-11-03 04:20:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3715 states have (on average 1.363391655450875) internal successors, (5065), 3719 states have internal predecessors, (5065), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-03 04:20:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5077 transitions. [2021-11-03 04:20:37,988 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5077 transitions. Word has length 13 [2021-11-03 04:20:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:37,990 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 5077 transitions. [2021-11-03 04:20:37,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5077 transitions. [2021-11-03 04:20:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 04:20:38,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:38,010 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:38,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:38,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:38,228 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:20:38,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash 970211147, now seen corresponding path program 1 times [2021-11-03 04:20:38,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:38,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729880818] [2021-11-03 04:20:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:38,260 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:38,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:38,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:38,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:20:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:43,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:20:43,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:44,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:44,414 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:44,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729880818] [2021-11-03 04:20:44,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729880818] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:44,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:44,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:20:44,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118460556] [2021-11-03 04:20:44,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:20:44,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:44,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:20:44,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:20:44,418 INFO L87 Difference]: Start difference. First operand 3730 states and 5077 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:44,659 INFO L93 Difference]: Finished difference Result 7406 states and 10086 transitions. [2021-11-03 04:20:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:20:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-03 04:20:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:44,681 INFO L225 Difference]: With dead ends: 7406 [2021-11-03 04:20:44,681 INFO L226 Difference]: Without dead ends: 3730 [2021-11-03 04:20:44,691 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:20:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2021-11-03 04:20:44,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2021-11-03 04:20:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3715 states have (on average 1.363122476446837) internal successors, (5064), 3719 states have internal predecessors, (5064), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-03 04:20:44,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5076 transitions. [2021-11-03 04:20:44,824 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5076 transitions. Word has length 65 [2021-11-03 04:20:44,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:44,825 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 5076 transitions. [2021-11-03 04:20:44,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:20:44,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5076 transitions. [2021-11-03 04:20:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 04:20:44,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:44,831 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:20:44,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:45,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:45,048 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:20:45,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:45,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1345747310, now seen corresponding path program 1 times [2021-11-03 04:20:45,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:45,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524376496] [2021-11-03 04:20:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:45,078 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:45,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:45,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:20:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:50,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:20:50,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:50,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:51,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:51,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524376496] [2021-11-03 04:20:51,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524376496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:51,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:51,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-03 04:20:51,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200635328] [2021-11-03 04:20:51,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:20:51,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:51,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:20:51,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:20:51,715 INFO L87 Difference]: Start difference. First operand 3730 states and 5076 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:00,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:00,418 INFO L93 Difference]: Finished difference Result 17354 states and 23783 transitions. [2021-11-03 04:21:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:21:00,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-03 04:21:00,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:00,498 INFO L225 Difference]: With dead ends: 17354 [2021-11-03 04:21:00,499 INFO L226 Difference]: Without dead ends: 13632 [2021-11-03 04:21:00,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:21:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13632 states. [2021-11-03 04:21:00,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13632 to 3730. [2021-11-03 04:21:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3715 states have (on average 1.3628532974427994) internal successors, (5063), 3719 states have internal predecessors, (5063), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-03 04:21:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5075 transitions. [2021-11-03 04:21:00,784 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5075 transitions. Word has length 69 [2021-11-03 04:21:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:00,784 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 5075 transitions. [2021-11-03 04:21:00,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:00,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5075 transitions. [2021-11-03 04:21:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 04:21:00,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:00,789 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:00,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:01,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:01,011 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:21:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash -218503297, now seen corresponding path program 1 times [2021-11-03 04:21:01,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:01,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348118781] [2021-11-03 04:21:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:01,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:01,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:01,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:01,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:21:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:06,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:21:06,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:06,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:07,064 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:07,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348118781] [2021-11-03 04:21:07,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348118781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:07,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:07,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:21:07,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367475412] [2021-11-03 04:21:07,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:21:07,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:21:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:21:07,068 INFO L87 Difference]: Start difference. First operand 3730 states and 5075 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:07,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:07,484 INFO L93 Difference]: Finished difference Result 7410 states and 10088 transitions. [2021-11-03 04:21:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:21:07,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-03 04:21:07,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:07,508 INFO L225 Difference]: With dead ends: 7410 [2021-11-03 04:21:07,508 INFO L226 Difference]: Without dead ends: 3723 [2021-11-03 04:21:07,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:21:07,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2021-11-03 04:21:07,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2021-11-03 04:21:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3708 states have (on average 1.3621898597626754) internal successors, (5051), 3712 states have internal predecessors, (5051), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-03 04:21:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5063 transitions. [2021-11-03 04:21:07,790 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5063 transitions. Word has length 72 [2021-11-03 04:21:07,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:07,792 INFO L470 AbstractCegarLoop]: Abstraction has 3723 states and 5063 transitions. [2021-11-03 04:21:07,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5063 transitions. [2021-11-03 04:21:07,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 04:21:07,796 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:07,796 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:07,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:07,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:07,997 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:21:07,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:07,998 INFO L85 PathProgramCache]: Analyzing trace with hash -638820295, now seen corresponding path program 1 times [2021-11-03 04:21:08,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:08,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678690040] [2021-11-03 04:21:08,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:08,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:08,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:08,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:21:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:13,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1927 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:21:13,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:13,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:14,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:14,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678690040] [2021-11-03 04:21:14,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678690040] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:14,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:14,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:21:14,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746289532] [2021-11-03 04:21:14,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:21:14,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:14,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:21:14,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:21:14,074 INFO L87 Difference]: Start difference. First operand 3723 states and 5063 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:14,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:14,301 INFO L93 Difference]: Finished difference Result 7418 states and 10094 transitions. [2021-11-03 04:21:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:21:14,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-03 04:21:14,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:14,332 INFO L225 Difference]: With dead ends: 7418 [2021-11-03 04:21:14,339 INFO L226 Difference]: Without dead ends: 3723 [2021-11-03 04:21:14,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:21:14,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2021-11-03 04:21:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2021-11-03 04:21:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3708 states have (on average 1.3619201725997843) internal successors, (5050), 3712 states have internal predecessors, (5050), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-03 04:21:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5062 transitions. [2021-11-03 04:21:14,525 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5062 transitions. Word has length 91 [2021-11-03 04:21:14,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:14,526 INFO L470 AbstractCegarLoop]: Abstraction has 3723 states and 5062 transitions. [2021-11-03 04:21:14,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5062 transitions. [2021-11-03 04:21:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 04:21:14,529 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:14,529 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:14,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:14,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:14,753 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:21:14,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:14,754 INFO L85 PathProgramCache]: Analyzing trace with hash -6268720, now seen corresponding path program 1 times [2021-11-03 04:21:14,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:14,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021286856] [2021-11-03 04:21:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:14,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:14,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:14,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:14,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:21:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:20,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1944 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 04:21:20,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:20,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:21,386 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:21,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021286856] [2021-11-03 04:21:21,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021286856] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:21,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:21,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-03 04:21:21,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869467422] [2021-11-03 04:21:21,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:21:21,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:21:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:21:21,388 INFO L87 Difference]: Start difference. First operand 3723 states and 5062 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:49,060 INFO L93 Difference]: Finished difference Result 143243 states and 199269 transitions. [2021-11-03 04:21:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-03 04:21:49,062 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-03 04:21:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:49,544 INFO L225 Difference]: With dead ends: 143243 [2021-11-03 04:21:49,545 INFO L226 Difference]: Without dead ends: 139540 [2021-11-03 04:21:49,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=590, Invalid=2166, Unknown=0, NotChecked=0, Total=2756 [2021-11-03 04:21:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139540 states. [2021-11-03 04:21:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139540 to 7388. [2021-11-03 04:21:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7388 states, 7363 states have (on average 1.3622164878446286) internal successors, (10030), 7367 states have internal predecessors, (10030), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-03 04:21:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7388 states to 7388 states and 10054 transitions. [2021-11-03 04:21:51,829 INFO L78 Accepts]: Start accepts. Automaton has 7388 states and 10054 transitions. Word has length 93 [2021-11-03 04:21:51,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:51,830 INFO L470 AbstractCegarLoop]: Abstraction has 7388 states and 10054 transitions. [2021-11-03 04:21:51,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7388 states and 10054 transitions. [2021-11-03 04:21:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 04:21:51,834 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:51,834 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:51,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:52,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:52,059 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:21:52,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:52,061 INFO L85 PathProgramCache]: Analyzing trace with hash 693013822, now seen corresponding path program 1 times [2021-11-03 04:21:52,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:52,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846220129] [2021-11-03 04:21:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:52,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:52,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:52,084 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:52,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:21:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:57,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 04:21:57,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:58,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:58,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:58,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:58,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846220129] [2021-11-03 04:21:58,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846220129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:58,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:58,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:21:58,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27485367] [2021-11-03 04:21:58,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:21:58,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:58,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:21:58,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:21:58,795 INFO L87 Difference]: Start difference. First operand 7388 states and 10054 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:13,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:13,099 INFO L93 Difference]: Finished difference Result 73786 states and 101584 transitions. [2021-11-03 04:22:13,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 04:22:13,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-03 04:22:13,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:13,220 INFO L225 Difference]: With dead ends: 73786 [2021-11-03 04:22:13,220 INFO L226 Difference]: Without dead ends: 66446 [2021-11-03 04:22:13,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:22:13,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66446 states. [2021-11-03 04:22:14,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66446 to 7396. [2021-11-03 04:22:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7396 states, 7371 states have (on average 1.3618233618233617) internal successors, (10038), 7375 states have internal predecessors, (10038), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-03 04:22:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7396 states to 7396 states and 10062 transitions. [2021-11-03 04:22:14,855 INFO L78 Accepts]: Start accepts. Automaton has 7396 states and 10062 transitions. Word has length 96 [2021-11-03 04:22:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:14,855 INFO L470 AbstractCegarLoop]: Abstraction has 7396 states and 10062 transitions. [2021-11-03 04:22:14,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7396 states and 10062 transitions. [2021-11-03 04:22:14,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 04:22:14,860 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:14,860 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:14,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:22:15,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:15,062 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:22:15,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:15,064 INFO L85 PathProgramCache]: Analyzing trace with hash 275617216, now seen corresponding path program 1 times [2021-11-03 04:22:15,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:15,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122146650] [2021-11-03 04:22:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:15,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:15,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:15,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:15,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:22:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:20,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:22:20,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:21,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:21,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:21,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122146650] [2021-11-03 04:22:21,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122146650] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:21,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:21,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:22:21,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203337501] [2021-11-03 04:22:21,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:22:21,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:22:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:21,250 INFO L87 Difference]: Start difference. First operand 7396 states and 10062 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:24,056 INFO L93 Difference]: Finished difference Result 29190 states and 39782 transitions. [2021-11-03 04:22:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:22:24,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-03 04:22:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:24,093 INFO L225 Difference]: With dead ends: 29190 [2021-11-03 04:22:24,093 INFO L226 Difference]: Without dead ends: 21872 [2021-11-03 04:22:24,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21872 states. [2021-11-03 04:22:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21872 to 7452. [2021-11-03 04:22:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7427 states have (on average 1.3612494950854988) internal successors, (10110), 7431 states have internal predecessors, (10110), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-03 04:22:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 10134 transitions. [2021-11-03 04:22:25,293 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 10134 transitions. Word has length 96 [2021-11-03 04:22:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:25,294 INFO L470 AbstractCegarLoop]: Abstraction has 7452 states and 10134 transitions. [2021-11-03 04:22:25,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 10134 transitions. [2021-11-03 04:22:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-03 04:22:25,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:25,298 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:25,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:22:25,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:25,522 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:22:25,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:25,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1743765905, now seen corresponding path program 1 times [2021-11-03 04:22:25,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:25,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371103900] [2021-11-03 04:22:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:25,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:25,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:25,526 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:25,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:22:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:31,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:22:31,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:32,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:32,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:32,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:32,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371103900] [2021-11-03 04:22:32,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371103900] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:32,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:32,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:22:32,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280439824] [2021-11-03 04:22:32,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:22:32,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:32,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:22:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:22:32,753 INFO L87 Difference]: Start difference. First operand 7452 states and 10134 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:35,938 INFO L93 Difference]: Finished difference Result 11155 states and 15161 transitions. [2021-11-03 04:22:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:22:35,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-03 04:22:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:35,954 INFO L225 Difference]: With dead ends: 11155 [2021-11-03 04:22:35,955 INFO L226 Difference]: Without dead ends: 7465 [2021-11-03 04:22:35,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:22:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7465 states. [2021-11-03 04:22:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7465 to 7452. [2021-11-03 04:22:37,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7427 states have (on average 1.3600377002827522) internal successors, (10101), 7431 states have internal predecessors, (10101), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-03 04:22:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 10125 transitions. [2021-11-03 04:22:37,085 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 10125 transitions. Word has length 99 [2021-11-03 04:22:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:37,085 INFO L470 AbstractCegarLoop]: Abstraction has 7452 states and 10125 transitions. [2021-11-03 04:22:37,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 10125 transitions. [2021-11-03 04:22:37,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-03 04:22:37,090 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:37,091 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:37,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:22:37,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:37,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:22:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 99252720, now seen corresponding path program 1 times [2021-11-03 04:22:37,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:37,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687265814] [2021-11-03 04:22:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:37,319 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:37,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:37,320 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:37,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:22:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:42,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1970 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:22:42,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:43,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:43,649 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:43,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687265814] [2021-11-03 04:22:43,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687265814] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:43,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:43,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:22:43,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091180867] [2021-11-03 04:22:43,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:22:43,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:43,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:22:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:22:43,651 INFO L87 Difference]: Start difference. First operand 7452 states and 10125 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:44,147 INFO L93 Difference]: Finished difference Result 7470 states and 10138 transitions. [2021-11-03 04:22:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:22:44,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-03 04:22:44,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:44,154 INFO L225 Difference]: With dead ends: 7470 [2021-11-03 04:22:44,154 INFO L226 Difference]: Without dead ends: 3754 [2021-11-03 04:22:44,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:22:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2021-11-03 04:22:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3754. [2021-11-03 04:22:44,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 3739 states have (on average 1.358117143621289) internal successors, (5078), 3743 states have internal predecessors, (5078), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-03 04:22:44,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5090 transitions. [2021-11-03 04:22:44,712 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5090 transitions. Word has length 100 [2021-11-03 04:22:44,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:44,712 INFO L470 AbstractCegarLoop]: Abstraction has 3754 states and 5090 transitions. [2021-11-03 04:22:44,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:44,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5090 transitions. [2021-11-03 04:22:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-03 04:22:44,716 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:44,716 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:44,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:22:44,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:44,930 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:22:44,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1032385025, now seen corresponding path program 1 times [2021-11-03 04:22:44,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:44,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087185775] [2021-11-03 04:22:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:44,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:44,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:44,946 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:44,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50217549-9570-4931-8ced-0192f579d5c3/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:30:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:26,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1970 conjuncts, 108 conjunts are in the unsatisfiable core [2021-11-03 04:30:26,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:29,125 INFO L354 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2021-11-03 04:30:29,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2021-11-03 04:30:29,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:30:29,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-11-03 04:30:29,298 INFO L354 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2021-11-03 04:30:29,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:30:29,340 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:30:35,166 INFO L190 IndexEqualityManager]: detected not equals via solver