./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P --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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:48:17,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:48:17,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:48:17,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:48:17,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:48:17,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:48:17,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:48:17,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:48:17,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:48:17,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:48:17,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:48:17,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:48:17,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:48:17,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:48:17,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:48:18,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:48:18,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:48:18,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:48:18,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:48:18,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:48:18,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:48:18,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:48:18,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:48:18,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:48:18,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:48:18,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:48:18,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:48:18,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:48:18,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:48:18,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:48:18,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:48:18,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:48:18,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:48:18,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:48:18,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:48:18,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:48:18,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:48:18,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:48:18,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:48:18,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:48:18,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:48:18,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:48:18,104 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:48:18,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:48:18,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:48:18,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:48:18,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:48:18,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:48:18,114 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:48:18,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:48:18,115 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:48:18,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:48:18,117 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:48:18,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:48:18,117 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:48:18,118 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:48:18,118 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:48:18,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:48:18,119 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:48:18,119 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:48:18,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:48:18,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:48:18,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:48:18,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:48:18,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:48:18,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:48:18,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:48:18,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:48:18,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:48:18,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:48:18,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:48:18,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:48:18,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:48:18,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:48:18,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:48:18,126 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:48:18,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:48:18,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:48:18,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:48:18,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:48:18,128 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_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2021-11-21 00:48:18,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:48:18,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:48:18,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:48:18,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:48:18,443 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:48:18,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-21 00:48:18,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/data/18a456c42/3caf007b9fae4e339bd7111f96ac7227/FLAG6a44fcade [2021-11-21 00:48:19,536 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:48:19,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-21 00:48:19,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/data/18a456c42/3caf007b9fae4e339bd7111f96ac7227/FLAG6a44fcade [2021-11-21 00:48:19,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/data/18a456c42/3caf007b9fae4e339bd7111f96ac7227 [2021-11-21 00:48:19,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:48:19,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:48:19,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:48:19,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:48:19,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:48:19,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:48:19" (1/1) ... [2021-11-21 00:48:19,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d76ef8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:19, skipping insertion in model container [2021-11-21 00:48:19,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:48:19" (1/1) ... [2021-11-21 00:48:19,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:48:20,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:48:22,966 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_18bf1538-9575-4fdc-9462-dc3018d2c008/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2021-11-21 00:48:23,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:48:23,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:48:23,761 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_18bf1538-9575-4fdc-9462-dc3018d2c008/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2021-11-21 00:48:23,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:48:24,081 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:48:24,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24 WrapperNode [2021-11-21 00:48:24,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:48:24,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:48:24,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:48:24,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:48:24,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:24,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:24,861 INFO L137 Inliner]: procedures = 359, calls = 7215, calls flagged for inlining = 183, calls inlined = 137, statements flattened = 11745 [2021-11-21 00:48:24,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:48:24,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:48:24,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:48:24,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:48:24,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:24,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:48:25,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:48:25,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:48:25,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:48:25,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (1/1) ... [2021-11-21 00:48:25,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:48:25,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:48:25,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:48:25,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:48:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-21 00:48:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-21 00:48:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-21 00:48:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-21 00:48:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-21 00:48:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-21 00:48:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:48:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:48:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 00:48:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 00:48:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_recv_bulk_msg [2021-11-21 00:48:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_recv_bulk_msg [2021-11-21 00:48:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:48:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:48:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_save_screen [2021-11-21 00:48:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_save_screen [2021-11-21 00:48:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_buffers [2021-11-21 00:48:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_buffers [2021-11-21 00:48:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_disconnect [2021-11-21 00:48:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_disconnect [2021-11-21 00:48:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_deinit [2021-11-21 00:48:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_deinit [2021-11-21 00:48:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_byte [2021-11-21 00:48:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_byte [2021-11-21 00:48:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 00:48:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 00:48:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-21 00:48:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-21 00:48:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 00:48:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 00:48:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_cursor [2021-11-21 00:48:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_cursor [2021-11-21 00:48:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-11-21 00:48:25,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-11-21 00:48:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-11-21 00:48:25,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-11-21 00:48:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_word [2021-11-21 00:48:25,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_word [2021-11-21 00:48:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:48:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:48:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetReg [2021-11-21 00:48:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetReg [2021-11-21 00:48:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-21 00:48:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-21 00:48:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb_lock_and_check [2021-11-21 00:48:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb_lock_and_check [2021-11-21 00:48:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:48:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure take_over_console [2021-11-21 00:48:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure take_over_console [2021-11-21 00:48:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_sisusb_valid [2021-11-21 00:48:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_sisusb_valid [2021-11-21 00:48:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:48:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegOR [2021-11-21 00:48:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegOR [2021-11-21 00:48:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2021-11-21 00:48:25,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2021-11-21 00:48:25,843 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-21 00:48:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_check_rbc [2021-11-21 00:48:25,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_check_rbc [2021-11-21 00:48:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:48:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:48:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-21 00:48:25,844 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-21 00:48:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_outurb_available [2021-11-21 00:48:25,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_outurb_available [2021-11-21 00:48:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_kill_all_busy [2021-11-21 00:48:25,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_kill_all_busy [2021-11-21 00:48:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 00:48:25,845 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 00:48:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-21 00:48:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-21 00:48:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getidxreg [2021-11-21 00:48:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getidxreg [2021-11-21 00:48:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-21 00:48:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-21 00:48:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-21 00:48:25,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-21 00:48:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_writeb [2021-11-21 00:48:25,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_writeb [2021-11-21 00:48:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:48:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-21 00:48:25,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-21 00:48:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_default_mode [2021-11-21 00:48:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_default_mode [2021-11-21 00:48:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_byte [2021-11-21 00:48:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_byte [2021-11-21 00:48:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:48:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_DisplayOn [2021-11-21 00:48:25,849 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_DisplayOn [2021-11-21 00:48:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregandor [2021-11-21 00:48:25,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregandor [2021-11-21 00:48:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_mem_bulk [2021-11-21 00:48:25,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_mem_bulk [2021-11-21 00:48:25,849 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-21 00:48:25,850 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-21 00:48:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbdummycon_init [2021-11-21 00:48:25,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbdummycon_init [2021-11-21 00:48:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-11-21 00:48:25,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-11-21 00:48:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:48:25,850 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetReg [2021-11-21 00:48:25,851 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetReg [2021-11-21 00:48:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_do_font_op [2021-11-21 00:48:25,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_do_font_op [2021-11-21 00:48:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_init_gfxdevice [2021-11-21 00:48:25,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_init_gfxdevice [2021-11-21 00:48:25,851 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegByte [2021-11-21 00:48:25,852 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegByte [2021-11-21 00:48:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_urbs [2021-11-21 00:48:25,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_urbs [2021-11-21 00:48:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:48:25,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:48:25,852 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bridge_packet [2021-11-21 00:48:25,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bridge_packet [2021-11-21 00:48:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-21 00:48:25,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-21 00:48:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-21 00:48:25,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-21 00:48:25,853 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_ioctl [2021-11-21 00:48:25,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_ioctl [2021-11-21 00:48:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_word [2021-11-21 00:48:25,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_word [2021-11-21 00:48:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb [2021-11-21 00:48:25,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb [2021-11-21 00:48:25,854 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:48:25,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:48:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_cursor [2021-11-21 00:48:25,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_cursor [2021-11-21 00:48:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_is_inactive [2021-11-21 00:48:25,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_is_inactive [2021-11-21 00:48:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 00:48:25,855 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 00:48:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_clear_vram [2021-11-21 00:48:25,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_clear_vram [2021-11-21 00:48:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_pci_config [2021-11-21 00:48:25,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_pci_config [2021-11-21 00:48:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:48:25,856 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-21 00:48:25,856 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-21 00:48:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bulk_msg [2021-11-21 00:48:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bulk_msg [2021-11-21 00:48:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-21 00:48:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-21 00:48:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:48:25,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:48:25,857 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_readb [2021-11-21 00:48:25,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_readb [2021-11-21 00:48:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregor [2021-11-21 00:48:25,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregor [2021-11-21 00:48:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:48:25,858 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-21 00:48:25,858 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-21 00:48:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-21 00:48:25,859 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-21 00:48:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:48:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_packet [2021-11-21 00:48:25,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_packet [2021-11-21 00:48:25,859 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_long [2021-11-21 00:48:25,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_long [2021-11-21 00:48:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_reset_text_mode [2021-11-21 00:48:25,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_reset_text_mode [2021-11-21 00:48:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSB_InitPtr [2021-11-21 00:48:25,860 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSB_InitPtr [2021-11-21 00:48:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:48:25,860 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_pci_config [2021-11-21 00:48:25,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_pci_config [2021-11-21 00:48:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:48:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxreg [2021-11-21 00:48:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxreg [2021-11-21 00:48:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegANDOR [2021-11-21 00:48:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegANDOR [2021-11-21 00:48:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:48:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:48:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_wait_all_out_complete [2021-11-21 00:48:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_wait_all_out_complete [2021-11-21 00:48:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-21 00:48:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-21 00:48:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegAND [2021-11-21 00:48:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegAND [2021-11-21 00:48:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregand [2021-11-21 00:48:25,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregand [2021-11-21 00:48:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-21 00:48:25,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-21 00:48:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetSegmentReg [2021-11-21 00:48:25,863 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetSegmentReg [2021-11-21 00:48:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_copy_memory [2021-11-21 00:48:25,863 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_copy_memory [2021-11-21 00:48:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setreg [2021-11-21 00:48:25,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setreg [2021-11-21 00:48:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2021-11-21 00:48:25,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2021-11-21 00:48:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_set_start_address [2021-11-21 00:48:25,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_set_start_address [2021-11-21 00:48:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-21 00:48:25,865 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-21 00:48:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:48:25,865 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:48:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_WriteDAC [2021-11-21 00:48:25,865 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_WriteDAC [2021-11-21 00:48:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_mem_bulk [2021-11-21 00:48:25,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_mem_bulk [2021-11-21 00:48:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getreg [2021-11-21 00:48:25,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getreg [2021-11-21 00:48:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSBSetMode [2021-11-21 00:48:25,866 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSBSetMode [2021-11-21 00:48:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2021-11-21 00:48:25,866 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2021-11-21 00:48:25,866 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_init [2021-11-21 00:48:25,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_init [2021-11-21 00:48:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-21 00:48:25,867 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-21 00:48:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:48:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_long [2021-11-21 00:48:25,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_long [2021-11-21 00:48:25,867 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetRegByte [2021-11-21 00:48:25,868 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetRegByte [2021-11-21 00:48:25,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:48:25,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:48:25,868 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_triggersr16 [2021-11-21 00:48:25,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_triggersr16 [2021-11-21 00:48:25,868 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-21 00:48:25,868 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-21 00:48:25,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:48:25,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:48:25,869 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_all_free [2021-11-21 00:48:25,869 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_all_free [2021-11-21 00:48:26,829 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:48:26,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:49:00,315 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:49:02,289 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:49:02,289 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 00:49:02,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:49:02 BoogieIcfgContainer [2021-11-21 00:49:02,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:49:02,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:49:02,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:49:02,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:49:02,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:48:19" (1/3) ... [2021-11-21 00:49:02,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5602401e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:49:02, skipping insertion in model container [2021-11-21 00:49:02,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:24" (2/3) ... [2021-11-21 00:49:02,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5602401e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:49:02, skipping insertion in model container [2021-11-21 00:49:02,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:49:02" (3/3) ... [2021-11-21 00:49:02,308 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-11-21 00:49:02,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:49:02,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:49:02,389 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:49:02,399 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 [2021-11-21 00:49:02,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:49:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 2233 states, 1362 states have (on average 1.3193832599118942) internal successors, (1797), 1389 states have internal predecessors, (1797), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) [2021-11-21 00:49:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 00:49:02,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:02,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:02,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:02,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:02,496 INFO L85 PathProgramCache]: Analyzing trace with hash 258264672, now seen corresponding path program 1 times [2021-11-21 00:49:02,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:02,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804128823] [2021-11-21 00:49:02,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:02,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:03,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:03,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804128823] [2021-11-21 00:49:03,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804128823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:03,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:03,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:49:03,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218397193] [2021-11-21 00:49:03,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:03,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:03,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:03,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:49:03,803 INFO L87 Difference]: Start difference. First operand has 2233 states, 1362 states have (on average 1.3193832599118942) internal successors, (1797), 1389 states have internal predecessors, (1797), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:49:10,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:49:11,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:11,344 INFO L93 Difference]: Finished difference Result 4459 states and 6713 transitions. [2021-11-21 00:49:11,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:11,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2021-11-21 00:49:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:11,414 INFO L225 Difference]: With dead ends: 4459 [2021-11-21 00:49:11,414 INFO L226 Difference]: Without dead ends: 2229 [2021-11-21 00:49:11,447 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 [2021-11-21 00:49:11,455 INFO L933 BasicCegarLoop]: 3034 mSDtfsCounter, 0 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:11,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6067 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 572 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-11-21 00:49:11,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2021-11-21 00:49:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2229. [2021-11-21 00:49:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1361 states have (on average 1.3181484202792064) internal successors, (1794), 1386 states have internal predecessors, (1794), 765 states have call successors, (765), 104 states have call predecessors, (765), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2021-11-21 00:49:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3318 transitions. [2021-11-21 00:49:11,760 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3318 transitions. Word has length 14 [2021-11-21 00:49:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:11,762 INFO L470 AbstractCegarLoop]: Abstraction has 2229 states and 3318 transitions. [2021-11-21 00:49:11,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:49:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3318 transitions. [2021-11-21 00:49:11,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 00:49:11,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:11,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:11,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:49:11,767 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:11,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:11,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1990268969, now seen corresponding path program 1 times [2021-11-21 00:49:11,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:11,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114757886] [2021-11-21 00:49:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:11,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:12,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:12,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114757886] [2021-11-21 00:49:12,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114757886] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:49:12,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277879060] [2021-11-21 00:49:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:12,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:12,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:12,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:12,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:49:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:14,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 8388 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:49:14,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:49:14,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:49:14,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277879060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:14,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:49:14,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-21 00:49:14,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948105749] [2021-11-21 00:49:14,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:14,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:14,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:14,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:14,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:14,755 INFO L87 Difference]: Start difference. First operand 2229 states and 3318 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:49:18,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:21,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:49:22,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:22,475 INFO L93 Difference]: Finished difference Result 2900 states and 4279 transitions. [2021-11-21 00:49:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:22,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2021-11-21 00:49:22,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:22,505 INFO L225 Difference]: With dead ends: 2900 [2021-11-21 00:49:22,506 INFO L226 Difference]: Without dead ends: 2897 [2021-11-21 00:49:22,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:22,511 INFO L933 BasicCegarLoop]: 3399 mSDtfsCounter, 3255 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:22,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3260 Valid, 4304 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 00:49:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-11-21 00:49:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2891. [2021-11-21 00:49:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 1764 states have (on average 1.3095238095238095) internal successors, (2310), 1793 states have internal predecessors, (2310), 981 states have call successors, (981), 147 states have call predecessors, (981), 145 states have return successors, (976), 971 states have call predecessors, (976), 976 states have call successors, (976) [2021-11-21 00:49:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 4267 transitions. [2021-11-21 00:49:22,770 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 4267 transitions. Word has length 15 [2021-11-21 00:49:22,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:22,771 INFO L470 AbstractCegarLoop]: Abstraction has 2891 states and 4267 transitions. [2021-11-21 00:49:22,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:49:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 4267 transitions. [2021-11-21 00:49:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:49:22,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:22,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:22,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:22,995 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1566427158, now seen corresponding path program 1 times [2021-11-21 00:49:22,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:22,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553022499] [2021-11-21 00:49:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:22,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:23,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:23,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553022499] [2021-11-21 00:49:23,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553022499] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:49:23,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317544559] [2021-11-21 00:49:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:23,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:23,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:23,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:23,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:49:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:25,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 8390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:49:25,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:49:25,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:49:25,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317544559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:25,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:49:25,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-21 00:49:25,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304625935] [2021-11-21 00:49:25,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:25,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:25,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:25,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:25,773 INFO L87 Difference]: Start difference. First operand 2891 states and 4267 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:49:31,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:35,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:49:36,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:36,356 INFO L93 Difference]: Finished difference Result 7218 states and 10682 transitions. [2021-11-21 00:49:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2021-11-21 00:49:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:36,409 INFO L225 Difference]: With dead ends: 7218 [2021-11-21 00:49:36,410 INFO L226 Difference]: Without dead ends: 4336 [2021-11-21 00:49:36,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:36,440 INFO L933 BasicCegarLoop]: 4678 mSDtfsCounter, 2324 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:36,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2325 Valid, 7498 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 670 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2021-11-21 00:49:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2021-11-21 00:49:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 4332. [2021-11-21 00:49:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 2646 states have (on average 1.3053665910808767) internal successors, (3454), 2703 states have internal predecessors, (3454), 1462 states have call successors, (1462), 222 states have call predecessors, (1462), 223 states have return successors, (1470), 1436 states have call predecessors, (1470), 1444 states have call successors, (1470) [2021-11-21 00:49:36,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 6386 transitions. [2021-11-21 00:49:36,754 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 6386 transitions. Word has length 16 [2021-11-21 00:49:36,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:36,754 INFO L470 AbstractCegarLoop]: Abstraction has 4332 states and 6386 transitions. [2021-11-21 00:49:36,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:49:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 6386 transitions. [2021-11-21 00:49:36,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 00:49:36,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:36,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:36,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:36,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:36,971 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:36,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:36,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1312237772, now seen corresponding path program 1 times [2021-11-21 00:49:36,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:36,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399692517] [2021-11-21 00:49:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:36,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:37,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:37,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399692517] [2021-11-21 00:49:37,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399692517] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:49:37,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787523235] [2021-11-21 00:49:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:37,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:37,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:37,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:37,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:49:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:39,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 8392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:49:39,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:39,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:49:39,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:49:39,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787523235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:39,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:49:39,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-21 00:49:39,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35427831] [2021-11-21 00:49:39,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:39,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:39,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:39,291 INFO L87 Difference]: Start difference. First operand 4332 states and 6386 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:49:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:41,839 INFO L93 Difference]: Finished difference Result 4334 states and 6387 transitions. [2021-11-21 00:49:41,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:41,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2021-11-21 00:49:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:41,881 INFO L225 Difference]: With dead ends: 4334 [2021-11-21 00:49:41,881 INFO L226 Difference]: Without dead ends: 4325 [2021-11-21 00:49:41,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:41,888 INFO L933 BasicCegarLoop]: 3027 mSDtfsCounter, 3299 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:41,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3299 Valid, 3028 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 00:49:41,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2021-11-21 00:49:42,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4325. [2021-11-21 00:49:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 2642 states have (on average 1.3031794095382285) internal successors, (3443), 2698 states have internal predecessors, (3443), 1459 states have call successors, (1459), 221 states have call predecessors, (1459), 223 states have return successors, (1469), 1435 states have call predecessors, (1469), 1443 states have call successors, (1469) [2021-11-21 00:49:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6371 transitions. [2021-11-21 00:49:42,192 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6371 transitions. Word has length 17 [2021-11-21 00:49:42,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:42,192 INFO L470 AbstractCegarLoop]: Abstraction has 4325 states and 6371 transitions. [2021-11-21 00:49:42,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:49:42,193 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6371 transitions. [2021-11-21 00:49:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 00:49:42,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:42,197 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:42,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:42,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:42,418 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash -147111788, now seen corresponding path program 1 times [2021-11-21 00:49:42,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:42,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102364250] [2021-11-21 00:49:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:42,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:49:42,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:42,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102364250] [2021-11-21 00:49:42,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102364250] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:49:42,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971748986] [2021-11-21 00:49:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:43,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:43,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:43,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:43,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:49:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:44,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 8533 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:49:44,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:49:45,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:49:45,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971748986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:45,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:49:45,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-21 00:49:45,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733619966] [2021-11-21 00:49:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:45,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:49:45,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:49:45,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:49:45,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:45,148 INFO L87 Difference]: Start difference. First operand 4325 states and 6371 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-21 00:49:50,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:52,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:49:55,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:49:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:55,807 INFO L93 Difference]: Finished difference Result 8853 states and 13090 transitions. [2021-11-21 00:49:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:49:55,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2021-11-21 00:49:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:55,848 INFO L225 Difference]: With dead ends: 8853 [2021-11-21 00:49:55,849 INFO L226 Difference]: Without dead ends: 4537 [2021-11-21 00:49:55,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:55,882 INFO L933 BasicCegarLoop]: 3059 mSDtfsCounter, 137 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 6023 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:55,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 6023 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 581 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2021-11-21 00:49:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2021-11-21 00:49:56,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 4513. [2021-11-21 00:49:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4513 states, 2768 states have (on average 1.310693641618497) internal successors, (3628), 2831 states have internal predecessors, (3628), 1521 states have call successors, (1521), 221 states have call predecessors, (1521), 223 states have return successors, (1537), 1496 states have call predecessors, (1537), 1505 states have call successors, (1537) [2021-11-21 00:49:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4513 states to 4513 states and 6686 transitions. [2021-11-21 00:49:56,200 INFO L78 Accepts]: Start accepts. Automaton has 4513 states and 6686 transitions. Word has length 36 [2021-11-21 00:49:56,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:56,201 INFO L470 AbstractCegarLoop]: Abstraction has 4513 states and 6686 transitions. [2021-11-21 00:49:56,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-21 00:49:56,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4513 states and 6686 transitions. [2021-11-21 00:49:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 00:49:56,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:56,210 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:49:56,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:56,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:56,428 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:49:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1420211316, now seen corresponding path program 1 times [2021-11-21 00:49:56,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:49:56,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732053915] [2021-11-21 00:49:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:56,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:49:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:49:56,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:49:56,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732053915] [2021-11-21 00:49:56,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732053915] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:49:56,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528440354] [2021-11-21 00:49:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:56,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:56,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:56,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:56,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bf1538-9575-4fdc-9462-dc3018d2c008/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:49:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:58,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 8552 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:49:58,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:58,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:49:58,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528440354] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:49:58,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1323307368] [2021-11-21 00:49:58,739 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 00:49:58,739 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:49:58,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:49:58,751 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:49:58,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:53:05,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 551 treesize of output 443 [2021-11-21 00:55:01,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 551 treesize of output 443