./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c239738c5bcaa6d0932e9e226032e983634dc69e8293d25e6d6f15c626fb290 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:00:42,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:00:42,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:00:42,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:00:42,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:00:42,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:00:42,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:00:42,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:00:42,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:00:42,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:00:42,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:00:42,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:00:42,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:00:42,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:00:42,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:00:42,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:00:42,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:00:42,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:00:42,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:00:42,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:00:42,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:00:42,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:00:42,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:00:42,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:00:42,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:00:42,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:00:42,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:00:42,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:00:42,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:00:42,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:00:42,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:00:42,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:00:42,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:00:42,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:00:42,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:00:42,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:00:42,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:00:42,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:00:42,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:00:42,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:00:42,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:00:42,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:00:42,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:00:42,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:00:42,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:00:42,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:00:42,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:00:42,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:00:42,698 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:00:42,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:00:42,698 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:00:42,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:00:42,698 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:00:42,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:00:42,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:00:42,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:00:42,699 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:00:42,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:00:42,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:00:42,700 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:00:42,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:00:42,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:00:42,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:00:42,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:00:42,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:00:42,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:00:42,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:00:42,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:00:42,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:00:42,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:00:42,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:00:42,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:00:42,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:00:42,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:00:42,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:00:42,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:00:42,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:00:42,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:00:42,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:00:42,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:00:42,704 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_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c239738c5bcaa6d0932e9e226032e983634dc69e8293d25e6d6f15c626fb290 [2021-11-23 02:00:43,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:00:43,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:00:43,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:00:43,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:00:43,046 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:00:43,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-23 02:00:43,137 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/data/9e200e500/be0435287cf6406788cbd108be3e9916/FLAGfe88456a0 [2021-11-23 02:00:44,041 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:00:44,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-23 02:00:44,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/data/9e200e500/be0435287cf6406788cbd108be3e9916/FLAGfe88456a0 [2021-11-23 02:00:44,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/data/9e200e500/be0435287cf6406788cbd108be3e9916 [2021-11-23 02:00:44,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:00:44,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:00:44,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:00:44,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:00:44,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:00:44,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:00:44" (1/1) ... [2021-11-23 02:00:44,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f58dd44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:44, skipping insertion in model container [2021-11-23 02:00:44,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:00:44" (1/1) ... [2021-11-23 02:00:44,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:00:44,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:00:47,058 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_75fb8fb0-7a79-413a-ad26-bf63596087da/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[329649,329662] [2021-11-23 02:00:47,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:00:47,194 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:00:47,782 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_75fb8fb0-7a79-413a-ad26-bf63596087da/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i[329649,329662] [2021-11-23 02:00:47,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:00:48,045 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:00:48,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48 WrapperNode [2021-11-23 02:00:48,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:00:48,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:00:48,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:00:48,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:00:48,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,443 INFO L137 Inliner]: procedures = 328, calls = 2623, calls flagged for inlining = 162, calls inlined = 141, statements flattened = 6285 [2021-11-23 02:00:48,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:00:48,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:00:48,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:00:48,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:00:48,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:00:48,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:00:48,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:00:48,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:00:48,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (1/1) ... [2021-11-23 02:00:48,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:00:48,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:00:48,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:00:48,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:00:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:00:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:00:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-23 02:00:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-23 02:00:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-11-23 02:00:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-11-23 02:00:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:00:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:00:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:00:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:00:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_rap [2021-11-23 02:00:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_rap [2021-11-23 02:00:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:00:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:00:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-23 02:00:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-23 02:00:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-11-23 02:00:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-11-23 02:00:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-11-23 02:00:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-11-23 02:00:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:00:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:00:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_ioctl [2021-11-23 02:00:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_ioctl [2021-11-23 02:00:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 02:00:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 02:00:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:00:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:00:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:00:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:00:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:00:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-11-23 02:00:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-11-23 02:00:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:00:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:00:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-11-23 02:00:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-11-23 02:00:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 02:00:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 02:00:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:00:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:00:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:00:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:00:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-11-23 02:00:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-11-23 02:00:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:00:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:00:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 02:00:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 02:00:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:00:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:00:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:00:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:00:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 02:00:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 02:00:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-23 02:00:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-23 02:00:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-11-23 02:00:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-11-23 02:00:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-11-23 02:00:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-11-23 02:00:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-11-23 02:00:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-11-23 02:00:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-11-23 02:00:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-11-23 02:00:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:00:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:00:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:00:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-11-23 02:00:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-11-23 02:00:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:00:48,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:00:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-23 02:00:48,899 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-23 02:00:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:00:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:00:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:00:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:00:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:00:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:00:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:00:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 02:00:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 02:00:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:00:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:00:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 02:00:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 02:00:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:00:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:00:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-11-23 02:00:48,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-11-23 02:00:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-11-23 02:00:48,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-11-23 02:00:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-11-23 02:00:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-11-23 02:00:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-23 02:00:48,905 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-23 02:00:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-23 02:00:48,905 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-23 02:00:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:00:48,905 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:00:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-11-23 02:00:48,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-11-23 02:00:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:00:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:00:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-11-23 02:00:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-11-23 02:00:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:00:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:00:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_stats [2021-11-23 02:00:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_stats [2021-11-23 02:00:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-23 02:00:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-23 02:00:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-11-23 02:00:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-11-23 02:00:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:00:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-11-23 02:00:48,913 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-11-23 02:00:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:00:48,913 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:00:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-23 02:00:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-11-23 02:00:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-11-23 02:00:48,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-11-23 02:00:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:00:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-11-23 02:00:48,920 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-11-23 02:00:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 02:00:48,920 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 02:00:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-11-23 02:00:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-11-23 02:00:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-23 02:00:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-23 02:00:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:00:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_rap [2021-11-23 02:00:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_rap [2021-11-23 02:00:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:00:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:00:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:00:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:00:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:00:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:00:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 02:00:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 02:00:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-11-23 02:00:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-11-23 02:00:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-11-23 02:00:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-11-23 02:00:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:00:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:00:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:00:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:00:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-11-23 02:00:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-11-23 02:00:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-11-23 02:00:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-11-23 02:00:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 02:00:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 02:00:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:00:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:00:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 02:00:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 02:00:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:00:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:00:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:00:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-11-23 02:00:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-11-23 02:00:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-23 02:00:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-23 02:00:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-11-23 02:00:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-11-23 02:00:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-23 02:00:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-23 02:00:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:00:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:00:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 02:00:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 02:00:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-23 02:00:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-11-23 02:00:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:00:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 02:00:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 02:00:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 02:00:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:00:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:00:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-11-23 02:00:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-11-23 02:00:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-11-23 02:00:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-11-23 02:00:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:00:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 02:00:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 02:00:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:00:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:00:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:00:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:00:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-11-23 02:00:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-11-23 02:00:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-23 02:00:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-23 02:00:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-23 02:00:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-23 02:00:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-11-23 02:00:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-11-23 02:00:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 02:00:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 02:00:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-11-23 02:00:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-11-23 02:00:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 02:00:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 02:00:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-11-23 02:00:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-11-23 02:00:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:00:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:00:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-23 02:00:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-23 02:00:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 02:00:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 02:00:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:00:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:00:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-11-23 02:00:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-11-23 02:00:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 02:00:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 02:00:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-23 02:00:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-23 02:00:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-23 02:00:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-23 02:00:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:00:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-23 02:00:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-23 02:00:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-11-23 02:00:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-11-23 02:00:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-23 02:00:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-23 02:00:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 02:00:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 02:00:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-23 02:00:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-23 02:00:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:00:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:00:50,009 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:00:50,016 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:00:50,290 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:00:59,038 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:01:00,764 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:01:00,765 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:01:00,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:00 BoogieIcfgContainer [2021-11-23 02:01:00,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:01:00,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:01:00,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:01:00,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:01:00,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:00:44" (1/3) ... [2021-11-23 02:01:00,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b991cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:01:00, skipping insertion in model container [2021-11-23 02:01:00,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:00:48" (2/3) ... [2021-11-23 02:01:00,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b991cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:01:00, skipping insertion in model container [2021-11-23 02:01:00,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:00" (3/3) ... [2021-11-23 02:01:00,786 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--pcnet32.ko-entry_point.cil.out.i [2021-11-23 02:01:00,792 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:01:00,792 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:01:00,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:01:00,866 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:01:00,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:01:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 1839 states, 1136 states have (on average 1.3380281690140845) internal successors, (1520), 1175 states have internal predecessors, (1520), 593 states have call successors, (593), 111 states have call predecessors, (593), 110 states have return successors, (584), 577 states have call predecessors, (584), 584 states have call successors, (584) [2021-11-23 02:01:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2021-11-23 02:01:01,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:01,001 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:01,002 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:01,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1522006084, now seen corresponding path program 1 times [2021-11-23 02:01:01,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:01,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210545884] [2021-11-23 02:01:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:01,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4617 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4617 trivial. 0 not checked. [2021-11-23 02:01:02,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:02,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210545884] [2021-11-23 02:01:02,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210545884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:02,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:02,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:01:02,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555136815] [2021-11-23 02:01:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:02,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:02,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:02,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:02,093 INFO L87 Difference]: Start difference. First operand has 1839 states, 1136 states have (on average 1.3380281690140845) internal successors, (1520), 1175 states have internal predecessors, (1520), 593 states have call successors, (593), 111 states have call predecessors, (593), 110 states have return successors, (584), 577 states have call predecessors, (584), 584 states have call successors, (584) Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-23 02:01:05,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:06,581 INFO L93 Difference]: Finished difference Result 4835 states and 7104 transitions. [2021-11-23 02:01:06,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:06,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 508 [2021-11-23 02:01:06,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:06,634 INFO L225 Difference]: With dead ends: 4835 [2021-11-23 02:01:06,634 INFO L226 Difference]: Without dead ends: 3036 [2021-11-23 02:01:06,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:06,657 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 1923 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 5040 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:06,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1925 Valid, 5040 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 572 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-23 02:01:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2021-11-23 02:01:06,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 3033. [2021-11-23 02:01:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 1884 states have (on average 1.3301486199575372) internal successors, (2506), 1925 states have internal predecessors, (2506), 939 states have call successors, (939), 210 states have call predecessors, (939), 209 states have return successors, (940), 924 states have call predecessors, (940), 938 states have call successors, (940) [2021-11-23 02:01:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4385 transitions. [2021-11-23 02:01:07,001 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4385 transitions. Word has length 508 [2021-11-23 02:01:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:07,005 INFO L470 AbstractCegarLoop]: Abstraction has 3033 states and 4385 transitions. [2021-11-23 02:01:07,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-23 02:01:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4385 transitions. [2021-11-23 02:01:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-23 02:01:07,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:07,029 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:07,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:01:07,030 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1294756254, now seen corresponding path program 1 times [2021-11-23 02:01:07,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:07,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894321965] [2021-11-23 02:01:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:07,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4629 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4629 trivial. 0 not checked. [2021-11-23 02:01:07,740 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:07,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894321965] [2021-11-23 02:01:07,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894321965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:07,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:07,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:01:07,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125598820] [2021-11-23 02:01:07,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:07,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:07,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:07,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:07,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:07,745 INFO L87 Difference]: Start difference. First operand 3033 states and 4385 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-23 02:01:10,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:11,996 INFO L93 Difference]: Finished difference Result 8373 states and 12079 transitions. [2021-11-23 02:01:11,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:11,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 519 [2021-11-23 02:01:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:12,048 INFO L225 Difference]: With dead ends: 8373 [2021-11-23 02:01:12,049 INFO L226 Difference]: Without dead ends: 5435 [2021-11-23 02:01:12,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:12,073 INFO L933 BasicCegarLoop]: 2825 mSDtfsCounter, 2237 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 4970 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:12,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2237 Valid, 4970 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-23 02:01:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5435 states. [2021-11-23 02:01:12,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5435 to 5420. [2021-11-23 02:01:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 3379 states have (on average 1.3314590115418763) internal successors, (4499), 3454 states have internal predecessors, (4499), 1649 states have call successors, (1649), 392 states have call predecessors, (1649), 391 states have return successors, (1670), 1617 states have call predecessors, (1670), 1648 states have call successors, (1670) [2021-11-23 02:01:12,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 7818 transitions. [2021-11-23 02:01:12,418 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 7818 transitions. Word has length 519 [2021-11-23 02:01:12,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:12,424 INFO L470 AbstractCegarLoop]: Abstraction has 5420 states and 7818 transitions. [2021-11-23 02:01:12,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-23 02:01:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 7818 transitions. [2021-11-23 02:01:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2021-11-23 02:01:12,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:12,458 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:12,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:01:12,459 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:12,459 INFO L85 PathProgramCache]: Analyzing trace with hash -962491674, now seen corresponding path program 1 times [2021-11-23 02:01:12,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:12,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567006339] [2021-11-23 02:01:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:12,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4724 trivial. 0 not checked. [2021-11-23 02:01:13,027 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:13,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567006339] [2021-11-23 02:01:13,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567006339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:13,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:13,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:01:13,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139454136] [2021-11-23 02:01:13,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:13,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:13,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:13,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:13,034 INFO L87 Difference]: Start difference. First operand 5420 states and 7818 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-11-23 02:01:16,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:17,272 INFO L93 Difference]: Finished difference Result 14240 states and 20505 transitions. [2021-11-23 02:01:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 610 [2021-11-23 02:01:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:17,359 INFO L225 Difference]: With dead ends: 14240 [2021-11-23 02:01:17,359 INFO L226 Difference]: Without dead ends: 8915 [2021-11-23 02:01:17,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:17,395 INFO L933 BasicCegarLoop]: 3626 mSDtfsCounter, 2109 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 5821 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:17,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2109 Valid, 5821 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 681 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 02:01:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2021-11-23 02:01:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 8912. [2021-11-23 02:01:17,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8912 states, 5575 states have (on average 1.336322869955157) internal successors, (7450), 5704 states have internal predecessors, (7450), 2675 states have call successors, (2675), 662 states have call predecessors, (2675), 661 states have return successors, (2696), 2622 states have call predecessors, (2696), 2674 states have call successors, (2696) [2021-11-23 02:01:17,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8912 states to 8912 states and 12821 transitions. [2021-11-23 02:01:17,880 INFO L78 Accepts]: Start accepts. Automaton has 8912 states and 12821 transitions. Word has length 610 [2021-11-23 02:01:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:17,881 INFO L470 AbstractCegarLoop]: Abstraction has 8912 states and 12821 transitions. [2021-11-23 02:01:17,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2021-11-23 02:01:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8912 states and 12821 transitions. [2021-11-23 02:01:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-11-23 02:01:17,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:17,903 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:17,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:01:17,903 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1881204948, now seen corresponding path program 1 times [2021-11-23 02:01:17,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:17,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590783193] [2021-11-23 02:01:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:17,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5085 trivial. 0 not checked. [2021-11-23 02:01:18,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:18,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590783193] [2021-11-23 02:01:18,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590783193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:18,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:01:18,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:01:18,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355062561] [2021-11-23 02:01:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:18,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:01:18,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:18,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:01:18,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:18,522 INFO L87 Difference]: Start difference. First operand 8912 states and 12821 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2021-11-23 02:01:21,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:22,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:22,809 INFO L93 Difference]: Finished difference Result 21048 states and 30994 transitions. [2021-11-23 02:01:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:01:22,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 572 [2021-11-23 02:01:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:22,948 INFO L225 Difference]: With dead ends: 21048 [2021-11-23 02:01:22,948 INFO L226 Difference]: Without dead ends: 12244 [2021-11-23 02:01:23,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:01:23,014 INFO L933 BasicCegarLoop]: 3339 mSDtfsCounter, 713 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:23,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 5887 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 610 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 02:01:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12244 states. [2021-11-23 02:01:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12244 to 8920. [2021-11-23 02:01:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 5583 states have (on average 1.335840945728103) internal successors, (7458), 5712 states have internal predecessors, (7458), 2675 states have call successors, (2675), 662 states have call predecessors, (2675), 661 states have return successors, (2696), 2622 states have call predecessors, (2696), 2674 states have call successors, (2696) [2021-11-23 02:01:23,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 12829 transitions. [2021-11-23 02:01:23,633 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 12829 transitions. Word has length 572 [2021-11-23 02:01:23,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:23,634 INFO L470 AbstractCegarLoop]: Abstraction has 8920 states and 12829 transitions. [2021-11-23 02:01:23,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2021-11-23 02:01:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 12829 transitions. [2021-11-23 02:01:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-11-23 02:01:23,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:23,656 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:23,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:01:23,657 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1231864905, now seen corresponding path program 1 times [2021-11-23 02:01:23,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:23,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849585501] [2021-11-23 02:01:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:23,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 4915 trivial. 0 not checked. [2021-11-23 02:01:25,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:25,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849585501] [2021-11-23 02:01:25,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849585501] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:01:25,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467326190] [2021-11-23 02:01:25,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:25,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:25,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:25,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:25,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:01:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:27,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 5491 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:01:27,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 1802 proven. 0 refuted. 0 times theorem prover too weak. 3283 trivial. 0 not checked. [2021-11-23 02:01:28,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:01:28,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467326190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:01:28,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:01:28,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-23 02:01:28,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546576167] [2021-11-23 02:01:28,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:01:28,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:01:28,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:01:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:01:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:01:28,654 INFO L87 Difference]: Start difference. First operand 8920 states and 12829 transitions. Second operand has 6 states, 4 states have (on average 33.75) internal successors, (135), 6 states have internal predecessors, (135), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-23 02:01:33,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:01:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:01:35,000 INFO L93 Difference]: Finished difference Result 17820 states and 25687 transitions. [2021-11-23 02:01:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:01:35,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 33.75) internal successors, (135), 6 states have internal predecessors, (135), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 574 [2021-11-23 02:01:35,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:01:35,046 INFO L225 Difference]: With dead ends: 17820 [2021-11-23 02:01:35,046 INFO L226 Difference]: Without dead ends: 8925 [2021-11-23 02:01:35,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:01:35,084 INFO L933 BasicCegarLoop]: 2334 mSDtfsCounter, 3 mSDsluCounter, 10308 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11595 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:01:35,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 11595 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1571 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-11-23 02:01:35,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8925 states. [2021-11-23 02:01:35,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925. [2021-11-23 02:01:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8925 states, 5588 states have (on average 1.3355404438081604) internal successors, (7463), 5717 states have internal predecessors, (7463), 2675 states have call successors, (2675), 662 states have call predecessors, (2675), 661 states have return successors, (2696), 2622 states have call predecessors, (2696), 2674 states have call successors, (2696) [2021-11-23 02:01:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 12834 transitions. [2021-11-23 02:01:35,530 INFO L78 Accepts]: Start accepts. Automaton has 8925 states and 12834 transitions. Word has length 574 [2021-11-23 02:01:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:01:35,531 INFO L470 AbstractCegarLoop]: Abstraction has 8925 states and 12834 transitions. [2021-11-23 02:01:35,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 33.75) internal successors, (135), 6 states have internal predecessors, (135), 3 states have call successors, (67), 2 states have call predecessors, (67), 4 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-23 02:01:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 8925 states and 12834 transitions. [2021-11-23 02:01:35,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-11-23 02:01:35,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:01:35,552 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:01:35,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:01:35,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:35,777 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:01:35,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:01:35,778 INFO L85 PathProgramCache]: Analyzing trace with hash 139658377, now seen corresponding path program 1 times [2021-11-23 02:01:35,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:01:35,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543114555] [2021-11-23 02:01:35,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:35,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:01:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6905 backedges. 0 proven. 273 refuted. 0 times theorem prover too weak. 6632 trivial. 0 not checked. [2021-11-23 02:01:36,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:01:36,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543114555] [2021-11-23 02:01:36,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543114555] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:01:36,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033470354] [2021-11-23 02:01:36,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:01:36,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:01:36,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:01:36,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:01:37,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75fb8fb0-7a79-413a-ad26-bf63596087da/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:01:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:01:52,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 5701 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 02:01:52,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:01:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6905 backedges. 1066 proven. 3 refuted. 0 times theorem prover too weak. 5836 trivial. 0 not checked. [2021-11-23 02:01:53,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:01:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6905 backedges. 8 proven. 265 refuted. 0 times theorem prover too weak. 6632 trivial. 0 not checked. [2021-11-23 02:01:55,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033470354] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:01:55,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [163266960] [2021-11-23 02:01:55,041 INFO L159 IcfgInterpreter]: Started Sifa with 197 locations of interest [2021-11-23 02:01:55,041 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:01:55,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:01:55,054 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:01:55,055 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:01:59,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-23 02:01:59,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-23 02:02:00,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-23 02:02:00,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-23 02:02:06,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:14,612 INFO L244 Elim1Store]: Index analysis took 13657 ms