./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V --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 f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:32:15,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:32:15,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:32:15,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:32:15,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:32:15,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:32:15,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:32:15,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:32:15,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:32:15,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:32:15,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:32:15,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:32:15,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:32:15,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:32:15,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:32:15,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:32:15,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:32:15,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:32:15,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:32:15,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:32:15,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:32:15,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:32:15,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:32:15,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:32:15,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:32:15,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:32:15,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:32:15,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:32:15,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:32:15,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:32:16,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:32:16,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:32:16,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:32:16,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:32:16,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:32:16,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:32:16,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:32:16,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:32:16,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:32:16,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:32:16,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:32:16,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:32:16,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:32:16,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:32:16,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:32:16,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:32:16,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:32:16,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:32:16,070 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:32:16,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:32:16,071 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:32:16,071 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:32:16,072 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:32:16,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:32:16,073 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:32:16,073 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:32:16,073 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:32:16,073 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:32:16,074 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:32:16,074 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:32:16,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:32:16,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:32:16,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:32:16,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:32:16,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:32:16,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:32:16,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:32:16,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:32:16,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:32:16,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:32:16,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:32:16,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:32:16,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:32:16,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:32:16,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:32:16,078 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:32:16,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:32:16,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:32:16,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:32:16,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:32:16,079 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_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2021-11-23 03:32:16,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:32:16,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:32:16,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:32:16,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:32:16,351 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:32:16,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2021-11-23 03:32:16,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/data/de100f5ee/01a15eecee6b41ac862cc5578501d08d/FLAG78f6283e9 [2021-11-23 03:32:17,381 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:32:17,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2021-11-23 03:32:17,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/data/de100f5ee/01a15eecee6b41ac862cc5578501d08d/FLAG78f6283e9 [2021-11-23 03:32:17,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/data/de100f5ee/01a15eecee6b41ac862cc5578501d08d [2021-11-23 03:32:17,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:32:17,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:32:17,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:32:17,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:32:17,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:32:17,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:17" (1/1) ... [2021-11-23 03:32:17,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2f4dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17, skipping insertion in model container [2021-11-23 03:32:17,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:17" (1/1) ... [2021-11-23 03:32:17,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:32:17,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:32:20,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2021-11-23 03:32:20,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:32:20,294 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:32:20,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2021-11-23 03:32:20,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:32:21,031 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:32:21,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21 WrapperNode [2021-11-23 03:32:21,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:32:21,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:32:21,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:32:21,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:32:21,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,433 INFO L137 Inliner]: procedures = 274, calls = 5784, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6383 [2021-11-23 03:32:21,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:32:21,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:32:21,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:32:21,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:32:21,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:32:21,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:32:21,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:32:21,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:32:21,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (1/1) ... [2021-11-23 03:32:21,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:32:21,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:21,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:32:21,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:32:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2021-11-23 03:32:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2021-11-23 03:32:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2021-11-23 03:32:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2021-11-23 03:32:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2021-11-23 03:32:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2021-11-23 03:32:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:32:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:32:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2021-11-23 03:32:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2021-11-23 03:32:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:32:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:32:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-11-23 03:32:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-11-23 03:32:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 03:32:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 03:32:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2021-11-23 03:32:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2021-11-23 03:32:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:32:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:32:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-23 03:32:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-23 03:32:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2021-11-23 03:32:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2021-11-23 03:32:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2021-11-23 03:32:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2021-11-23 03:32:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 03:32:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 03:32:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:32:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:32:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2021-11-23 03:32:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2021-11-23 03:32:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:32:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:32:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-11-23 03:32:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-11-23 03:32:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2021-11-23 03:32:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2021-11-23 03:32:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2021-11-23 03:32:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2021-11-23 03:32:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2021-11-23 03:32:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2021-11-23 03:32:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2021-11-23 03:32:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2021-11-23 03:32:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-23 03:32:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-23 03:32:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:32:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 03:32:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 03:32:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2021-11-23 03:32:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2021-11-23 03:32:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:32:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 03:32:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 03:32:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:32:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:32:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2021-11-23 03:32:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2021-11-23 03:32:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 03:32:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 03:32:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:32:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:32:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2021-11-23 03:32:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2021-11-23 03:32:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2021-11-23 03:32:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2021-11-23 03:32:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 03:32:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 03:32:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 03:32:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 03:32:21,888 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2021-11-23 03:32:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2021-11-23 03:32:21,888 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:32:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:32:21,889 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2021-11-23 03:32:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2021-11-23 03:32:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 03:32:21,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 03:32:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2021-11-23 03:32:21,890 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2021-11-23 03:32:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2021-11-23 03:32:21,890 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2021-11-23 03:32:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2021-11-23 03:32:21,891 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2021-11-23 03:32:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2021-11-23 03:32:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2021-11-23 03:32:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 03:32:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 03:32:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2021-11-23 03:32:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2021-11-23 03:32:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 03:32:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 03:32:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:32:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2021-11-23 03:32:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2021-11-23 03:32:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2021-11-23 03:32:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2021-11-23 03:32:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2021-11-23 03:32:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2021-11-23 03:32:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2021-11-23 03:32:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2021-11-23 03:32:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2021-11-23 03:32:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2021-11-23 03:32:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 03:32:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 03:32:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:32:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:32:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2021-11-23 03:32:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2021-11-23 03:32:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 03:32:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 03:32:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:32:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:32:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:32:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 03:32:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 03:32:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:32:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 03:32:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 03:32:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 03:32:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-23 03:32:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-23 03:32:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:32:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2021-11-23 03:32:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2021-11-23 03:32:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2021-11-23 03:32:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2021-11-23 03:32:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:32:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:32:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:32:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2021-11-23 03:32:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2021-11-23 03:32:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2021-11-23 03:32:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2021-11-23 03:32:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-23 03:32:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-23 03:32:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2021-11-23 03:32:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2021-11-23 03:32:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2021-11-23 03:32:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2021-11-23 03:32:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2021-11-23 03:32:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2021-11-23 03:32:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2021-11-23 03:32:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2021-11-23 03:32:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2021-11-23 03:32:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2021-11-23 03:32:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2021-11-23 03:32:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2021-11-23 03:32:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:32:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:32:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2021-11-23 03:32:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2021-11-23 03:32:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2021-11-23 03:32:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2021-11-23 03:32:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:32:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2021-11-23 03:32:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2021-11-23 03:32:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:32:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:32:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2021-11-23 03:32:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2021-11-23 03:32:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2021-11-23 03:32:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2021-11-23 03:32:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2021-11-23 03:32:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2021-11-23 03:32:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 03:32:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 03:32:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2021-11-23 03:32:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2021-11-23 03:32:22,801 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:32:22,804 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:32:24,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:32:33,568 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:32:34,926 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:32:34,926 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:32:34,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:34 BoogieIcfgContainer [2021-11-23 03:32:34,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:32:34,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:32:34,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:32:34,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:32:34,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:32:17" (1/3) ... [2021-11-23 03:32:34,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ab9b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:34, skipping insertion in model container [2021-11-23 03:32:34,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:21" (2/3) ... [2021-11-23 03:32:34,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ab9b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:34, skipping insertion in model container [2021-11-23 03:32:34,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:34" (3/3) ... [2021-11-23 03:32:34,939 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2021-11-23 03:32:34,944 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:32:34,945 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:32:34,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:32:35,005 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 [2021-11-23 03:32:35,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:32:35,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 1103 states, 671 states have (on average 1.2906110283159464) internal successors, (866), 689 states have internal predecessors, (866), 353 states have call successors, (353), 78 states have call predecessors, (353), 77 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2021-11-23 03:32:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 03:32:35,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:35,066 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:35,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash 249346938, now seen corresponding path program 1 times [2021-11-23 03:32:35,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:35,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730420249] [2021-11-23 03:32:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:35,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-23 03:32:35,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:35,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730420249] [2021-11-23 03:32:35,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730420249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:35,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:35,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:32:35,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337251190] [2021-11-23 03:32:35,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:35,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:32:35,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:35,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:32:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:35,946 INFO L87 Difference]: Start difference. First operand has 1103 states, 671 states have (on average 1.2906110283159464) internal successors, (866), 689 states have internal predecessors, (866), 353 states have call successors, (353), 78 states have call predecessors, (353), 77 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:32:38,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:38,422 INFO L93 Difference]: Finished difference Result 3000 states and 4277 transitions. [2021-11-23 03:32:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:32:38,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2021-11-23 03:32:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:38,484 INFO L225 Difference]: With dead ends: 3000 [2021-11-23 03:32:38,484 INFO L226 Difference]: Without dead ends: 1883 [2021-11-23 03:32:38,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:38,509 INFO L933 BasicCegarLoop]: 1661 mSDtfsCounter, 1104 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2985 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:38,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2985 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 03:32:38,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2021-11-23 03:32:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1879. [2021-11-23 03:32:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1140 states have (on average 1.2675438596491229) internal successors, (1445), 1161 states have internal predecessors, (1445), 601 states have call successors, (601), 138 states have call predecessors, (601), 137 states have return successors, (600), 599 states have call predecessors, (600), 600 states have call successors, (600) [2021-11-23 03:32:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2646 transitions. [2021-11-23 03:32:38,819 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2646 transitions. Word has length 59 [2021-11-23 03:32:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:38,820 INFO L470 AbstractCegarLoop]: Abstraction has 1879 states and 2646 transitions. [2021-11-23 03:32:38,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:32:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2646 transitions. [2021-11-23 03:32:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 03:32:38,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:38,839 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:38,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:32:38,844 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:38,848 INFO L85 PathProgramCache]: Analyzing trace with hash 839687913, now seen corresponding path program 1 times [2021-11-23 03:32:38,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:38,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483249907] [2021-11-23 03:32:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:38,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-23 03:32:39,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:39,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483249907] [2021-11-23 03:32:39,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483249907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:39,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:39,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:32:39,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531563814] [2021-11-23 03:32:39,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:39,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:32:39,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:32:39,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:39,462 INFO L87 Difference]: Start difference. First operand 1879 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 03:32:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:42,461 INFO L93 Difference]: Finished difference Result 3384 states and 4785 transitions. [2021-11-23 03:32:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:32:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2021-11-23 03:32:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:42,491 INFO L225 Difference]: With dead ends: 3384 [2021-11-23 03:32:42,492 INFO L226 Difference]: Without dead ends: 3381 [2021-11-23 03:32:42,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:42,499 INFO L933 BasicCegarLoop]: 1703 mSDtfsCounter, 1122 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:42,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 3020 Invalid, 457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 03:32:42,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2021-11-23 03:32:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3348. [2021-11-23 03:32:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2042 states have (on average 1.27179236043095) internal successors, (2597), 2087 states have internal predecessors, (2597), 1060 states have call successors, (1060), 250 states have call predecessors, (1060), 245 states have return successors, (1072), 1044 states have call predecessors, (1072), 1059 states have call successors, (1072) [2021-11-23 03:32:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4729 transitions. [2021-11-23 03:32:42,726 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4729 transitions. Word has length 117 [2021-11-23 03:32:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:42,729 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 4729 transitions. [2021-11-23 03:32:42,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-23 03:32:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4729 transitions. [2021-11-23 03:32:42,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-23 03:32:42,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:42,745 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:42,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:32:42,746 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1622354921, now seen corresponding path program 1 times [2021-11-23 03:32:42,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:42,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901516917] [2021-11-23 03:32:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:42,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-23 03:32:43,427 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:43,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901516917] [2021-11-23 03:32:43,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901516917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:43,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:43,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-23 03:32:43,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675495902] [2021-11-23 03:32:43,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:43,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:32:43,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:43,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:32:43,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:32:43,430 INFO L87 Difference]: Start difference. First operand 3348 states and 4729 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-23 03:32:54,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:56,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:32:58,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:00,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:02,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:04,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:06,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:08,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:10,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:38,370 INFO L93 Difference]: Finished difference Result 6959 states and 9932 transitions. [2021-11-23 03:33:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:33:38,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2021-11-23 03:33:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:38,410 INFO L225 Difference]: With dead ends: 6959 [2021-11-23 03:33:38,411 INFO L226 Difference]: Without dead ends: 3612 [2021-11-23 03:33:38,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-23 03:33:38,428 INFO L933 BasicCegarLoop]: 1365 mSDtfsCounter, 169 mSDsluCounter, 10607 mSDsCounter, 0 mSdLazyCounter, 6983 mSolverCounterSat, 352 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 7344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 6983 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:38,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 10753 Invalid, 7344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 6983 Invalid, 9 Unknown, 0 Unchecked, 54.6s Time] [2021-11-23 03:33:38,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2021-11-23 03:33:38,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3400. [2021-11-23 03:33:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3400 states, 2078 states have (on average 1.2757459095283927) internal successors, (2651), 2129 states have internal predecessors, (2651), 1066 states have call successors, (1066), 252 states have call predecessors, (1066), 255 states have return successors, (1109), 1052 states have call predecessors, (1109), 1065 states have call successors, (1109) [2021-11-23 03:33:38,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 4826 transitions. [2021-11-23 03:33:38,761 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 4826 transitions. Word has length 146 [2021-11-23 03:33:38,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:38,764 INFO L470 AbstractCegarLoop]: Abstraction has 3400 states and 4826 transitions. [2021-11-23 03:33:38,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-23 03:33:38,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 4826 transitions. [2021-11-23 03:33:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 03:33:38,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:38,774 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:38,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:33:38,775 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:38,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1806309475, now seen corresponding path program 1 times [2021-11-23 03:33:38,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:38,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113719640] [2021-11-23 03:33:38,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:38,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-23 03:33:40,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:40,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113719640] [2021-11-23 03:33:40,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113719640] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:33:40,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484167501] [2021-11-23 03:33:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:40,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:33:40,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:33:40,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:33:40,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:33:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:41,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 7163 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 03:33:41,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:33:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-23 03:33:42,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:33:42,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484167501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:33:42,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:33:42,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 25 [2021-11-23 03:33:42,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636532048] [2021-11-23 03:33:42,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:33:42,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:33:42,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:33:42,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:33:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2021-11-23 03:33:42,030 INFO L87 Difference]: Start difference. First operand 3400 states and 4826 transitions. Second operand has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-23 03:33:46,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:33:49,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:33:49,367 INFO L93 Difference]: Finished difference Result 6775 states and 9632 transitions. [2021-11-23 03:33:49,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:33:49,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2021-11-23 03:33:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:33:49,394 INFO L225 Difference]: With dead ends: 6775 [2021-11-23 03:33:49,394 INFO L226 Difference]: Without dead ends: 3368 [2021-11-23 03:33:49,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2021-11-23 03:33:49,411 INFO L933 BasicCegarLoop]: 1324 mSDtfsCounter, 3 mSDsluCounter, 6141 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6602 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:33:49,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6602 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1144 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 03:33:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2021-11-23 03:33:49,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3366. [2021-11-23 03:33:49,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 2051 states have (on average 1.272549975621648) internal successors, (2610), 2105 states have internal predecessors, (2610), 1060 states have call successors, (1060), 250 states have call predecessors, (1060), 254 states have return successors, (1086), 1044 states have call predecessors, (1086), 1059 states have call successors, (1086) [2021-11-23 03:33:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4756 transitions. [2021-11-23 03:33:49,608 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4756 transitions. Word has length 148 [2021-11-23 03:33:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:33:49,608 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 4756 transitions. [2021-11-23 03:33:49,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.25) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-23 03:33:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4756 transitions. [2021-11-23 03:33:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-23 03:33:49,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:33:49,617 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:33:49,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:33:49,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:33:49,831 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:33:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:33:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash -702255641, now seen corresponding path program 2 times [2021-11-23 03:33:49,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:33:49,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160988311] [2021-11-23 03:33:49,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:33:49,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:33:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:33:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-23 03:33:51,064 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:33:51,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160988311] [2021-11-23 03:33:51,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160988311] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:33:51,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417221110] [2021-11-23 03:33:51,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:33:51,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:33:51,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:33:51,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:33:51,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aebda8b-76c3-48be-b551-a4011f7d9719/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:33:52,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 03:33:52,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:33:52,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 6811 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 03:33:52,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:33:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-23 03:33:52,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:33:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-23 03:33:53,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417221110] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:33:53,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1966642630] [2021-11-23 03:33:53,579 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2021-11-23 03:33:53,579 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:33:53,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:33:53,591 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:33:53,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:37:25,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:37:25,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:37:25,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-23 03:37:48,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:48,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:48,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:48,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:48,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:48,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:37:49,869 INFO L244 Elim1Store]: Index analysis took 962 ms [2021-11-23 03:37:50,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 976 select indices, 976 select index equivalence classes, 25251 disjoint index pairs (out of 475800 index pairs), introduced 976 new quantified variables, introduced 0 case distinctions, treesize of input 6853 treesize of output 2929 [2021-11-23 03:38:36,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:36,892 INFO L244 Elim1Store]: Index analysis took 512 ms [2021-11-23 03:38:37,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 976 select indices, 976 select index equivalence classes, 25251 disjoint index pairs (out of 475800 index pairs), introduced 976 new quantified variables, introduced 0 case distinctions, treesize of input 6853 treesize of output 2929 [2021-11-23 03:38:41,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:38:41,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:41,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:41,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:41,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:41,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:38:50,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:50,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:50,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:38:50,548 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:38:50,578 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:38:50,589 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:38:56,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:38:56,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:56,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:38:57,040 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:38:57,054 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:38:57,061 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:05,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:05,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:05,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:05,749 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:05,756 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:05,772 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:12,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:12,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:12,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:12,589 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:12,598 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:12,599 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:25,688 WARN L227 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 7811 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:39:26,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:26,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:26,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:26,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:26,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:26,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:28,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:28,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:28,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:28,568 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,575 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,580 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:30,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:30,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:30,145 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,148 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,151 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:30,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:30,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:30,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:30,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:30,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:32,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:32,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:32,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:32,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:32,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:32,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:33,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:33,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:33,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:33,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:33,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:33,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:35,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:35,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:35,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:35,582 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,587 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,598 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:37,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:39:37,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:39:37,393 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,407 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:44,967 WARN L227 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 7790 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:39:52,289 WARN L227 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 7797 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:39:59,498 WARN L227 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 7799 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:40:06,573 WARN L227 SmtUtils]: Spent 6.95s on a formula simplification that was a NOOP. DAG size: 7799 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:40:13,708 WARN L227 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 7656 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-23 03:40:13,925 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-23 03:40:13,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 16 [2021-11-23 03:40:13,995 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-23 03:40:13,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2021-11-23 03:40:14,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-23 03:40:14,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-23 03:40:14,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-23 03:40:14,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-23 03:40:15,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 03:40:15,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:15,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:15,588 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 03:40:15,589 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 98 treesize of output 97 [2021-11-23 03:40:15,624 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:40:15,625 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 94 treesize of output 93 [2021-11-23 03:40:15,653 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:40:15,653 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 90 treesize of output 89 [2021-11-23 03:40:15,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:15,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 03:40:15,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:15,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:40:16,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:40:16,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-23 03:40:16,885 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:40:19,981 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 113 for LOIs [2021-11-23 03:40:20,258 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 184 for LOIs [2021-11-23 03:40:20,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:40:20,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:40:22,497 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 203 for LOIs [2021-11-23 03:40:22,549 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 205 for LOIs [2021-11-23 03:40:22,705 INFO L197 IcfgInterpreter]: Interpreting procedure bdc_gadget_ep_enable with input of size 143 for LOIs [2021-11-23 03:40:25,205 INFO L354 Elim1Store]: treesize reduction 640, result has 18.8 percent of original size [2021-11-23 03:40:25,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 29 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 402 treesize of output 554 [2021-11-23 03:40:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:25,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:25,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:25,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:28,530 INFO L354 Elim1Store]: treesize reduction 1129, result has 21.2 percent of original size [2021-11-23 03:40:28,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 27 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 528 treesize of output 735 [2021-11-23 03:40:28,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:28,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:28,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:28,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:28,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:28,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:30,206 INFO L354 Elim1Store]: treesize reduction 1001, result has 21.3 percent of original size [2021-11-23 03:40:30,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 1131 treesize of output 1022 [2021-11-23 03:40:30,373 INFO L354 Elim1Store]: treesize reduction 141, result has 12.4 percent of original size [2021-11-23 03:40:30,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 1243 treesize of output 1249 [2021-11-23 03:40:30,535 INFO L354 Elim1Store]: treesize reduction 201, result has 9.0 percent of original size [2021-11-23 03:40:30,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 1243 treesize of output 1243