./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--scsi--ipr.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW --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 abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:06:06,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:06:06,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:06:06,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:06:06,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:06:06,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:06:06,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:06:06,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:06:06,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:06:06,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:06:06,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:06:06,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:06:06,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:06:06,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:06:06,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:06:06,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:06:06,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:06:06,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:06:06,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:06:06,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:06:06,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:06:06,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:06:06,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:06:06,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:06:06,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:06:06,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:06:06,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:06:06,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:06:06,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:06:06,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:06:06,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:06:06,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:06:06,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:06:06,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:06:06,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:06:06,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:06:06,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:06:06,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:06:06,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:06:06,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:06:06,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:06:06,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:06:06,876 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:06:06,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:06:06,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:06:06,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:06:06,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:06:06,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:06:06,878 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:06:06,879 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:06:06,879 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:06:06,879 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:06:06,879 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:06:06,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:06:06,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:06:06,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:06:06,880 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:06:06,881 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:06:06,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:06:06,881 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:06:06,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:06:06,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:06:06,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:06:06,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:06:06,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:06:06,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:06:06,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:06:06,884 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:06:06,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:06:06,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:06:06,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:06:06,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:06:06,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:06:06,885 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:06:06,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:06:06,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:06:06,886 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:06:06,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:06:06,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:06:06,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:06:06,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 [2022-11-23 14:06:07,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:06:07,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:06:07,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:06:07,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:06:07,164 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:06:07,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2022-11-23 14:06:10,262 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:06:11,146 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:06:11,147 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2022-11-23 14:06:11,204 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/data/2a922c2fb/9dc286d2f06b4b24aadce28bdad26947/FLAG7eac0cd77 [2022-11-23 14:06:11,223 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/data/2a922c2fb/9dc286d2f06b4b24aadce28bdad26947 [2022-11-23 14:06:11,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:06:11,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:06:11,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:06:11,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:06:11,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:06:11,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:11" (1/1) ... [2022-11-23 14:06:11,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52658e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:11, skipping insertion in model container [2022-11-23 14:06:11,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:11" (1/1) ... [2022-11-23 14:06:11,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:06:11,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:06:17,475 WARN L237 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_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2022-11-23 14:06:17,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:06:17,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:06:19,027 WARN L237 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_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2022-11-23 14:06:19,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:06:19,334 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:06:19,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19 WrapperNode [2022-11-23 14:06:19,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:06:19,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:06:19,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:06:19,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:06:19,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:19,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:20,026 INFO L138 Inliner]: procedures = 624, calls = 8895, calls flagged for inlining = 309, calls inlined = 304, statements flattened = 19665 [2022-11-23 14:06:20,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:06:20,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:06:20,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:06:20,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:06:20,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:20,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:20,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:20,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:20,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:21,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:21,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:21,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:21,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:06:21,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:06:21,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:06:21,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:06:21,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (1/1) ... [2022-11-23 14:06:21,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:06:21,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:06:21,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:06:21,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:06:21,804 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_log_vpd [2022-11-23 14:06:21,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_log_vpd [2022-11-23 14:06:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:06:21,805 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:06:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_shutdown [2022-11-23 14:06:21,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_shutdown [2022-11-23 14:06:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 14:06:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_get_ldump_data_section [2022-11-23 14:06:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_get_ldump_data_section [2022-11-23 14:06:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:06:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:06:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_clear_res_target [2022-11-23 14:06:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_clear_res_target [2022-11-23 14:06:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:06:21,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:06:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_init_res_entry [2022-11-23 14:06:21,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_init_res_entry [2022-11-23 14:06:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 14:06:21,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 14:06:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 14:06:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 14:06:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:06:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:06:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure _ipr_initiate_ioa_reset [2022-11-23 14:06:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure _ipr_initiate_ioa_reset [2022-11-23 14:06:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-23 14:06:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-23 14:06:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_ata_post_internal [2022-11-23 14:06:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_ata_post_internal [2022-11-23 14:06:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_get_mode_page [2022-11-23 14:06:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_get_mode_page [2022-11-23 14:06:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_page24_failed [2022-11-23 14:06:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_page24_failed [2022-11-23 14:06:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 14:06:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 14:06:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-23 14:06:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-23 14:06:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa [2022-11-23 14:06:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa [2022-11-23 14:06:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_7 [2022-11-23 14:06:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_7 [2022-11-23 14:06:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reinit_ipr_cmnd [2022-11-23 14:06:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reinit_ipr_cmnd [2022-11-23 14:06:21,826 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:06:21,826 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:06:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:06:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:06:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_dump [2022-11-23 14:06:21,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_dump [2022-11-23 14:06:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_all_resources [2022-11-23 14:06:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_all_resources [2022-11-23 14:06:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_get_free_ipr_cmnd [2022-11-23 14:06:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_get_free_ipr_cmnd [2022-11-23 14:06:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sas_port_start [2022-11-23 14:06:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sas_port_start [2022-11-23 14:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_device_reset [2022-11-23 14:06:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_device_reset [2022-11-23 14:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_pci_err_recovery [2022-11-23 14:06:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_pci_err_recovery [2022-11-23 14:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_pcie_reset_state [2022-11-23 14:06:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_pcie_reset_state [2022-11-23 14:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 14:06:21,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 14:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-23 14:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_get_free_ipr_cmnd [2022-11-23 14:06:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_get_free_ipr_cmnd [2022-11-23 14:06:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_scsi_disk [2022-11-23 14:06:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_scsi_disk [2022-11-23 14:06:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:06:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:06:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:06:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 14:06:21,832 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 14:06:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_update_res_entry [2022-11-23 14:06:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_update_res_entry [2022-11-23 14:06:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_failed [2022-11-23 14:06:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_failed [2022-11-23 14:06:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-23 14:06:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-23 14:06:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_ata_phy_reset [2022-11-23 14:06:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_ata_phy_reset [2022-11-23 14:06:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 14:06:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 14:06:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_cmd_blks [2022-11-23 14:06:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_cmd_blks [2022-11-23 14:06:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_update_ata_class [2022-11-23 14:06:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_update_ata_class [2022-11-23 14:06:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:06:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:06:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_iodbg_ack [2022-11-23 14:06:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_iodbg_ack [2022-11-23 14:06:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 14:06:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 14:06:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:06:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-23 14:06:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-23 14:06:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_init_ioadl [2022-11-23 14:06:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_init_ioadl [2022-11-23 14:06:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_dump_ioasa [2022-11-23 14:06:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_dump_ioasa [2022-11-23 14:06:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:06:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:06:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-23 14:06:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-23 14:06:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_done [2022-11-23 14:06:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_done [2022-11-23 14:06:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-23 14:06:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-23 14:06:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:06:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-23 14:06:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-23 14:06:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:06:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure blk_iopoll_init [2022-11-23 14:06:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_iopoll_init [2022-11-23 14:06:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_remove [2022-11-23 14:06:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_remove [2022-11-23 14:06:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-23 14:06:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-23 14:06:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_dev_reset [2022-11-23 14:06:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_dev_reset [2022-11-23 14:06:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:06:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:06:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_abort [2022-11-23 14:06:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_abort [2022-11-23 14:06:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-23 14:06:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-23 14:06:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-23 14:06:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-23 14:06:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 14:06:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 14:06:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_requests [2022-11-23 14:06:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_requests [2022-11-23 14:06:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-23 14:06:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-23 14:06:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_format_res_path [2022-11-23 14:06:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_format_res_path [2022-11-23 14:06:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_set_pcix_cmd_reg [2022-11-23 14:06:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_set_pcix_cmd_reg [2022-11-23 14:06:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_sdt_is_fmt2 [2022-11-23 14:06:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_sdt_is_fmt2 [2022-11-23 14:06:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 14:06:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 14:06:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 14:06:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 14:06:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_mem [2022-11-23 14:06:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_mem [2022-11-23 14:06:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:06:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:06:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_device [2022-11-23 14:06:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_device [2022-11-23 14:06:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure ata_noop_qc_prep [2022-11-23 14:06:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_noop_qc_prep [2022-11-23 14:06:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-23 14:06:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-23 14:06:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-23 14:06:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-23 14:06:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:06:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:06:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:06:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-23 14:06:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-23 14:06:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-23 14:06:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_init_ipr_cmnd [2022-11-23 14:06:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_init_ipr_cmnd [2022-11-23 14:06:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_8 [2022-11-23 14:06:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_8 [2022-11-23 14:06:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reinit_ipr_cmnd_for_erp [2022-11-23 14:06:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reinit_ipr_cmnd_for_erp [2022-11-23 14:06:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_slave_alloc [2022-11-23 14:06:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_slave_alloc [2022-11-23 14:06:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:06:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_bringdown [2022-11-23 14:06:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_bringdown [2022-11-23 14:06:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_send_hcam [2022-11-23 14:06:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_send_hcam [2022-11-23 14:06:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_8 [2022-11-23 14:06:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_8 [2022-11-23 14:06:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:06:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:06:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:06:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:06:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:06:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-23 14:06:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-23 14:06:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-23 14:06:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-23 14:06:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:06:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:06:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure strim [2022-11-23 14:06:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure strim [2022-11-23 14:06:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_af_dasd_device [2022-11-23 14:06:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_af_dasd_device [2022-11-23 14:06:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_qc_defer [2022-11-23 14:06:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_qc_defer [2022-11-23 14:06:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_log_hex_data [2022-11-23 14:06:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_log_hex_data [2022-11-23 14:06:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_restore_cfg_space [2022-11-23 14:06:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_restore_cfg_space [2022-11-23 14:06:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 14:06:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 14:06:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_slave_configure [2022-11-23 14:06:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_slave_configure [2022-11-23 14:06:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:06:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:06:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_target_destroy [2022-11-23 14:06:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_target_destroy [2022-11-23 14:06:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_do_req [2022-11-23 14:06:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_do_req [2022-11-23 14:06:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_request_sense [2022-11-23 14:06:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_request_sense [2022-11-23 14:06:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_get_hrrq_index [2022-11-23 14:06:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_get_hrrq_index [2022-11-23 14:06:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_handle_log_data [2022-11-23 14:06:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_handle_log_data [2022-11-23 14:06:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_timer_done [2022-11-23 14:06:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_timer_done [2022-11-23 14:06:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 14:06:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 14:06:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:06:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:06:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:06:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:06:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-23 14:06:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-23 14:06:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_target_alloc [2022-11-23 14:06:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_target_alloc [2022-11-23 14:06:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 14:06:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 14:06:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:06:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:06:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2022-11-23 14:06:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2022-11-23 14:06:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_trc_hook [2022-11-23 14:06:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_trc_hook [2022-11-23 14:06:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 14:06:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 14:06:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure strip_and_pad_whitespace [2022-11-23 14:06:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure strip_and_pad_whitespace [2022-11-23 14:06:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-23 14:06:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-23 14:06:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 14:06:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 14:06:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-23 14:06:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-23 14:06:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:06:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:06:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:06:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:06:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2022-11-23 14:06:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2022-11-23 14:06:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 14:06:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 14:06:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_bus_reset_done [2022-11-23 14:06:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_bus_reset_done [2022-11-23 14:06:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-11-23 14:06:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-11-23 14:06:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_start [2022-11-23 14:06:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_start [2022-11-23 14:06:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_queuecommand [2022-11-23 14:06:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_queuecommand [2022-11-23 14:06:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-11-23 14:06:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-11-23 14:06:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_cfg_access_unlock [2022-11-23 14:06:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_cfg_access_unlock [2022-11-23 14:06:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:06:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:06:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_eh_done [2022-11-23 14:06:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_eh_done [2022-11-23 14:06:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_13 [2022-11-23 14:06:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_13 [2022-11-23 14:06:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_worker_thread [2022-11-23 14:06:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_worker_thread [2022-11-23 14:06:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_vset_device [2022-11-23 14:06:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_vset_device [2022-11-23 14:06:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_find_starget [2022-11-23 14:06:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_find_starget [2022-11-23 14:06:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_fail_all_ops [2022-11-23 14:06:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_fail_all_ops [2022-11-23 14:06:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_log_ext_vpd [2022-11-23 14:06:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_log_ext_vpd [2022-11-23 14:06:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:06:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:06:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-23 14:06:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-23 14:06:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_log_vpd_compact [2022-11-23 14:06:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_log_vpd_compact [2022-11-23 14:06:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 14:06:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 14:06:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:06:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:06:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cancel_hcam_done [2022-11-23 14:06:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cancel_hcam_done [2022-11-23 14:06:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-11-23 14:06:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-11-23 14:06:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2022-11-23 14:06:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2022-11-23 14:06:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_start_timer [2022-11-23 14:06:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_start_timer [2022-11-23 14:06:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 14:06:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 14:06:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_isr [2022-11-23 14:06:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_isr [2022-11-23 14:06:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_53 [2022-11-23 14:06:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_53 [2022-11-23 14:06:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:06:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:06:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:06:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_done [2022-11-23 14:06:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_done [2022-11-23 14:06:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 14:06:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 14:06:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure blk_iopoll_enable [2022-11-23 14:06:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_iopoll_enable [2022-11-23 14:06:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:06:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2022-11-23 14:06:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2022-11-23 14:06:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 14:06:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 14:06:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_get_unit_check_buffer [2022-11-23 14:06:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_get_unit_check_buffer [2022-11-23 14:06:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_map [2022-11-23 14:06:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_map [2022-11-23 14:06:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 14:06:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 14:06:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure ata_qc_complete [2022-11-23 14:06:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_qc_complete [2022-11-23 14:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_format_res_path [2022-11-23 14:06:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_format_res_path [2022-11-23 14:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_reset_work [2022-11-23 14:06:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_reset_work [2022-11-23 14:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure blk_iopoll_disable [2022-11-23 14:06:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_iopoll_disable [2022-11-23 14:06:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-23 14:06:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-23 14:06:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_ops [2022-11-23 14:06:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_ops [2022-11-23 14:06:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ata_sas_port_stop [2022-11-23 14:06:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ata_sas_port_stop [2022-11-23 14:06:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:06:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_cancel_all [2022-11-23 14:06:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_cancel_all [2022-11-23 14:06:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_52 [2022-11-23 14:06:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_52 [2022-11-23 14:06:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-23 14:06:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-23 14:06:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_41 [2022-11-23 14:06:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_41 [2022-11-23 14:06:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:06:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:06:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2022-11-23 14:06:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2022-11-23 14:06:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-23 14:06:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-23 14:06:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 14:06:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 14:06:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_naca_model [2022-11-23 14:06:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_naca_model [2022-11-23 14:06:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 14:06:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 14:06:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_get_error [2022-11-23 14:06:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_get_error [2022-11-23 14:06:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-23 14:06:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-23 14:06:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_test_intr [2022-11-23 14:06:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_test_intr [2022-11-23 14:06:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-23 14:06:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-23 14:06:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure __printk_ratelimit [2022-11-23 14:06:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __printk_ratelimit [2022-11-23 14:06:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-23 14:06:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-23 14:06:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_build_mode_sense [2022-11-23 14:06:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_build_mode_sense [2022-11-23 14:06:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2022-11-23 14:06:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2022-11-23 14:06:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_gscsi [2022-11-23 14:06:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_gscsi [2022-11-23 14:06:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_remove [2022-11-23 14:06:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_remove [2022-11-23 14:06:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 14:06:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 14:06:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe [2022-11-23 14:06:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe [2022-11-23 14:06:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_change_queue_depth [2022-11-23 14:06:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_change_queue_depth [2022-11-23 14:06:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-23 14:06:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-23 14:06:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 14:06:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 14:06:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-23 14:06:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-23 14:06:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_hrrq [2022-11-23 14:06:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_hrrq [2022-11-23 14:06:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_channel_offline [2022-11-23 14:06:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_channel_offline [2022-11-23 14:06:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_isr_eh [2022-11-23 14:06:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_isr_eh [2022-11-23 14:06:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_ioafp_inquiry [2022-11-23 14:06:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_ioafp_inquiry [2022-11-23 14:06:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:06:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:06:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_reset [2022-11-23 14:06:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_reset [2022-11-23 14:06:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_mask_and_clear_interrupts [2022-11-23 14:06:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_mask_and_clear_interrupts [2022-11-23 14:06:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_slave_destroy [2022-11-23 14:06:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_slave_destroy [2022-11-23 14:06:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-23 14:06:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-23 14:06:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:06:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-23 14:06:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-23 14:06:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2022-11-23 14:06:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2022-11-23 14:06:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_irqs [2022-11-23 14:06:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_irqs [2022-11-23 14:06:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-23 14:06:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-23 14:06:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:06:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:06:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:06:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:06:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unblock_requests [2022-11-23 14:06:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unblock_requests [2022-11-23 14:06:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-23 14:06:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-23 14:06:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 14:06:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 14:06:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_qc_issue [2022-11-23 14:06:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_qc_issue [2022-11-23 14:06:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_5 [2022-11-23 14:06:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_5 [2022-11-23 14:06:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_4 [2022-11-23 14:06:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_4 [2022-11-23 14:06:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_build_mode_select [2022-11-23 14:06:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_build_mode_select [2022-11-23 14:06:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-23 14:06:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-23 14:06:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_send_command [2022-11-23 14:06:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_send_command [2022-11-23 14:06:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_3 [2022-11-23 14:06:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_3 [2022-11-23 14:06:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-23 14:06:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-23 14:06:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa_part2 [2022-11-23 14:06:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa_part2 [2022-11-23 14:06:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_shost [2022-11-23 14:06:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_shost [2022-11-23 14:06:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-23 14:06:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-23 14:06:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-23 14:06:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-23 14:06:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 14:06:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 14:06:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_send_blocking_cmd [2022-11-23 14:06:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_send_blocking_cmd [2022-11-23 14:06:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_is_gata [2022-11-23 14:06:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_is_gata [2022-11-23 14:06:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_init_dump_entry_hdr [2022-11-23 14:06:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_init_dump_entry_hdr [2022-11-23 14:06:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2022-11-23 14:06:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2022-11-23 14:06:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 14:06:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 14:06:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-23 14:06:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-23 14:06:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ac_err_mask [2022-11-23 14:06:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ac_err_mask [2022-11-23 14:06:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_host_reset [2022-11-23 14:06:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_host_reset [2022-11-23 14:06:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cmd_failed [2022-11-23 14:06:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cmd_failed [2022-11-23 14:06:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_lock_and_done [2022-11-23 14:06:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_lock_and_done [2022-11-23 14:06:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_error [2022-11-23 14:06:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_error [2022-11-23 14:06:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:06:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:06:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:06:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:06:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-23 14:06:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-23 14:06:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-23 14:06:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-23 14:06:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_unit_check_no_data [2022-11-23 14:06:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_unit_check_no_data [2022-11-23 14:06:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:06:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:06:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_ioa_job [2022-11-23 14:06:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_ioa_job [2022-11-23 14:06:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_timeout [2022-11-23 14:06:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_timeout [2022-11-23 14:06:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:06:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-23 14:06:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-23 14:06:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_bin_file [2022-11-23 14:06:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_bin_file [2022-11-23 14:06:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_oper_timeout [2022-11-23 14:06:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_oper_timeout [2022-11-23 14:06:24,211 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:06:24,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:06:24,667 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:06:53,743 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:06:59,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:06:59,653 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:06:59,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:59 BoogieIcfgContainer [2022-11-23 14:06:59,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:06:59,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:06:59,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:06:59,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:06:59,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:06:11" (1/3) ... [2022-11-23 14:06:59,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7352ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:59, skipping insertion in model container [2022-11-23 14:06:59,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:19" (2/3) ... [2022-11-23 14:06:59,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7352ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:59, skipping insertion in model container [2022-11-23 14:06:59,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:59" (3/3) ... [2022-11-23 14:06:59,685 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2022-11-23 14:06:59,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:06:59,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:06:59,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:06:59,877 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c4f6730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:06:59,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:06:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 4984 states, 3099 states have (on average 1.3410777670216198) internal successors, (4156), 3261 states have internal predecessors, (4156), 1644 states have call successors, (1644), 240 states have call predecessors, (1644), 239 states have return successors, (1610), 1570 states have call predecessors, (1610), 1610 states have call successors, (1610) [2022-11-23 14:06:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-11-23 14:06:59,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:06:59,983 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 20, 20, 20, 20, 20, 20, 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] [2022-11-23 14:06:59,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:06:59,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:06:59,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1726258541, now seen corresponding path program 1 times [2022-11-23 14:07:00,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:00,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844626086] [2022-11-23 14:07:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:01,440 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:07:01,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514943416] [2022-11-23 14:07:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:01,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:01,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:01,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:07:01,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:07:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:06,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 15384 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:07:06,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:07:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12612 trivial. 0 not checked. [2022-11-23 14:07:06,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:07:06,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:06,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844626086] [2022-11-23 14:07:06,624 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:07:06,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514943416] [2022-11-23 14:07:06,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514943416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:06,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:06,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:06,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435855942] [2022-11-23 14:07:06,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:06,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:06,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:06,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:06,697 INFO L87 Difference]: Start difference. First operand has 4984 states, 3099 states have (on average 1.3410777670216198) internal successors, (4156), 3261 states have internal predecessors, (4156), 1644 states have call successors, (1644), 240 states have call predecessors, (1644), 239 states have return successors, (1610), 1570 states have call predecessors, (1610), 1610 states have call successors, (1610) Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2022-11-23 14:07:08,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:12,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:13,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:15,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:17,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:20,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:24,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:27,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:30,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:33,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:36,236 INFO L93 Difference]: Finished difference Result 14113 states and 21278 transitions. [2022-11-23 14:07:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:36,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 791 [2022-11-23 14:07:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:36,331 INFO L225 Difference]: With dead ends: 14113 [2022-11-23 14:07:36,332 INFO L226 Difference]: Without dead ends: 9188 [2022-11-23 14:07:36,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:36,380 INFO L413 NwaCegarLoop]: 8156 mSDtfsCounter, 6553 mSDsluCounter, 6508 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6558 SdHoareTripleChecker+Valid, 14664 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:36,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6558 Valid, 14664 Invalid, 1395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1387 Invalid, 6 Unknown, 0 Unchecked, 28.8s Time] [2022-11-23 14:07:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9188 states. [2022-11-23 14:07:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9188 to 9180. [2022-11-23 14:07:37,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9180 states, 5768 states have (on average 1.331484049930652) internal successors, (7680), 6000 states have internal predecessors, (7680), 2955 states have call successors, (2955), 458 states have call predecessors, (2955), 456 states have return successors, (2956), 2874 states have call predecessors, (2956), 2953 states have call successors, (2956) [2022-11-23 14:07:37,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9180 states to 9180 states and 13591 transitions. [2022-11-23 14:07:37,326 INFO L78 Accepts]: Start accepts. Automaton has 9180 states and 13591 transitions. Word has length 791 [2022-11-23 14:07:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:37,335 INFO L495 AbstractCegarLoop]: Abstraction has 9180 states and 13591 transitions. [2022-11-23 14:07:37,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2022-11-23 14:07:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9180 states and 13591 transitions. [2022-11-23 14:07:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2022-11-23 14:07:37,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:37,381 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:37,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:07:37,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:37,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:37,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:37,596 INFO L85 PathProgramCache]: Analyzing trace with hash 984756534, now seen corresponding path program 1 times [2022-11-23 14:07:37,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:37,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457545251] [2022-11-23 14:07:37,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:37,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12610 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12610 trivial. 0 not checked. [2022-11-23 14:07:40,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:40,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457545251] [2022-11-23 14:07:40,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457545251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:40,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:40,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:40,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845901281] [2022-11-23 14:07:40,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:40,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:40,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:40,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:40,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:40,360 INFO L87 Difference]: Start difference. First operand 9180 states and 13591 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2022-11-23 14:07:42,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:43,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:46,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:50,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:52,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:57,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:59,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:01,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:03,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:09,467 INFO L93 Difference]: Finished difference Result 26617 states and 39364 transitions. [2022-11-23 14:08:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:09,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 807 [2022-11-23 14:08:09,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:09,762 INFO L225 Difference]: With dead ends: 26617 [2022-11-23 14:08:09,762 INFO L226 Difference]: Without dead ends: 17580 [2022-11-23 14:08:09,808 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:08:09,809 INFO L413 NwaCegarLoop]: 8056 mSDtfsCounter, 6271 mSDsluCounter, 6624 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6276 SdHoareTripleChecker+Valid, 14680 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:09,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6276 Valid, 14680 Invalid, 1390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1384 Invalid, 5 Unknown, 0 Unchecked, 28.5s Time] [2022-11-23 14:08:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17580 states. [2022-11-23 14:08:10,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17580 to 17576. [2022-11-23 14:08:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17576 states, 11077 states have (on average 1.3333032409497156) internal successors, (14769), 11522 states have internal predecessors, (14769), 5602 states have call successors, (5602), 900 states have call predecessors, (5602), 896 states have return successors, (5609), 5446 states have call predecessors, (5609), 5600 states have call successors, (5609) [2022-11-23 14:08:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17576 states to 17576 states and 25980 transitions. [2022-11-23 14:08:10,866 INFO L78 Accepts]: Start accepts. Automaton has 17576 states and 25980 transitions. Word has length 807 [2022-11-23 14:08:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:10,868 INFO L495 AbstractCegarLoop]: Abstraction has 17576 states and 25980 transitions. [2022-11-23 14:08:10,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2022-11-23 14:08:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 17576 states and 25980 transitions. [2022-11-23 14:08:10,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2022-11-23 14:08:10,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:10,923 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:10,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:08:10,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:10,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -840477061, now seen corresponding path program 1 times [2022-11-23 14:08:10,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:10,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105698183] [2022-11-23 14:08:10,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:10,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12615 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12615 trivial. 0 not checked. [2022-11-23 14:08:13,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:13,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105698183] [2022-11-23 14:08:13,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105698183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:13,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:13,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:13,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927775332] [2022-11-23 14:08:13,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:13,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:13,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:13,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:13,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:13,312 INFO L87 Difference]: Start difference. First operand 17576 states and 25980 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, (83), 2 states have call predecessors, (83), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-23 14:08:15,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:18,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:26,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:27,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:31,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:33,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:36,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:38,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:41,916 INFO L93 Difference]: Finished difference Result 51347 states and 76867 transitions. [2022-11-23 14:08:41,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:41,919 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, (83), 2 states have call predecessors, (83), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 833 [2022-11-23 14:08:41,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:42,142 INFO L225 Difference]: With dead ends: 51347 [2022-11-23 14:08:42,142 INFO L226 Difference]: Without dead ends: 33914 [2022-11-23 14:08:42,241 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:08:42,244 INFO L413 NwaCegarLoop]: 9162 mSDtfsCounter, 6585 mSDsluCounter, 6725 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 15887 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:42,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6585 Valid, 15887 Invalid, 1520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1507 Invalid, 6 Unknown, 0 Unchecked, 27.6s Time] [2022-11-23 14:08:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33914 states. [2022-11-23 14:08:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33914 to 33814. [2022-11-23 14:08:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33814 states, 21336 states have (on average 1.3339426321709786) internal successors, (28461), 22192 states have internal predecessors, (28461), 10718 states have call successors, (10718), 1766 states have call predecessors, (10718), 1759 states have return successors, (11800), 10417 states have call predecessors, (11800), 10716 states have call successors, (11800) [2022-11-23 14:08:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33814 states to 33814 states and 50979 transitions. [2022-11-23 14:08:44,753 INFO L78 Accepts]: Start accepts. Automaton has 33814 states and 50979 transitions. Word has length 833 [2022-11-23 14:08:44,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:44,754 INFO L495 AbstractCegarLoop]: Abstraction has 33814 states and 50979 transitions. [2022-11-23 14:08:44,755 INFO L496 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, (83), 2 states have call predecessors, (83), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-23 14:08:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 33814 states and 50979 transitions. [2022-11-23 14:08:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2022-11-23 14:08:44,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:44,803 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 20, 20, 20, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:44,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:08:44,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:44,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:44,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1738235713, now seen corresponding path program 1 times [2022-11-23 14:08:44,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:44,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61894096] [2022-11-23 14:08:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:44,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:47,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12619 trivial. 0 not checked. [2022-11-23 14:08:47,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:47,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61894096] [2022-11-23 14:08:47,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61894096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:47,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:47,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:47,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814185805] [2022-11-23 14:08:47,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:47,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:47,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:47,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:47,394 INFO L87 Difference]: Start difference. First operand 33814 states and 50979 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (91), 3 states have call predecessors, (91), 2 states have return successors, (84), 2 states have call predecessors, (84), 1 states have call successors, (84) [2022-11-23 14:08:49,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:54,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:57,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:01,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:05,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:08,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:11,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:14,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:14,930 INFO L93 Difference]: Finished difference Result 55934 states and 86877 transitions. [2022-11-23 14:09:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:09:14,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (91), 3 states have call predecessors, (91), 2 states have return successors, (84), 2 states have call predecessors, (84), 1 states have call successors, (84) Word has length 900 [2022-11-23 14:09:14,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:15,275 INFO L225 Difference]: With dead ends: 55934 [2022-11-23 14:09:15,276 INFO L226 Difference]: Without dead ends: 55930 [2022-11-23 14:09:15,305 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:09:15,307 INFO L413 NwaCegarLoop]: 10587 mSDtfsCounter, 5865 mSDsluCounter, 5630 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5865 SdHoareTripleChecker+Valid, 16217 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:15,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5865 Valid, 16217 Invalid, 1643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1635 Invalid, 6 Unknown, 0 Unchecked, 26.1s Time] [2022-11-23 14:09:15,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55930 states. [2022-11-23 14:09:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55930 to 54084. [2022-11-23 14:09:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54084 states, 34682 states have (on average 1.3494031486073468) internal successors, (46800), 35972 states have internal predecessors, (46800), 16383 states have call successors, (16383), 3038 states have call predecessors, (16383), 3018 states have return successors, (20381), 15783 states have call predecessors, (20381), 16381 states have call successors, (20381) [2022-11-23 14:09:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54084 states to 54084 states and 83564 transitions. [2022-11-23 14:09:19,157 INFO L78 Accepts]: Start accepts. Automaton has 54084 states and 83564 transitions. Word has length 900 [2022-11-23 14:09:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:19,160 INFO L495 AbstractCegarLoop]: Abstraction has 54084 states and 83564 transitions. [2022-11-23 14:09:19,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (91), 3 states have call predecessors, (91), 2 states have return successors, (84), 2 states have call predecessors, (84), 1 states have call successors, (84) [2022-11-23 14:09:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 54084 states and 83564 transitions. [2022-11-23 14:09:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2022-11-23 14:09:19,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:19,264 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 21, 21, 20, 20, 20, 20, 5, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:19,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:09:19,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:19,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1107608422, now seen corresponding path program 1 times [2022-11-23 14:09:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:19,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337023733] [2022-11-23 14:09:19,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:19,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12716 trivial. 0 not checked. [2022-11-23 14:09:21,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:21,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337023733] [2022-11-23 14:09:21,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337023733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:21,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:21,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:09:21,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070865993] [2022-11-23 14:09:21,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:21,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:09:21,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:21,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:09:21,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:09:21,823 INFO L87 Difference]: Start difference. First operand 54084 states and 83564 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2022-11-23 14:09:24,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:25,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:27,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:30,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:37,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:39,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:42,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:44,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:47,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:53,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:54,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:54,935 INFO L93 Difference]: Finished difference Result 159249 states and 245916 transitions. [2022-11-23 14:09:54,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:09:54,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) Word has length 935 [2022-11-23 14:09:54,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:56,004 INFO L225 Difference]: With dead ends: 159249 [2022-11-23 14:09:56,004 INFO L226 Difference]: Without dead ends: 105308 [2022-11-23 14:09:56,308 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:09:56,309 INFO L413 NwaCegarLoop]: 8601 mSDtfsCounter, 6208 mSDsluCounter, 6623 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6214 SdHoareTripleChecker+Valid, 15224 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:56,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6214 Valid, 15224 Invalid, 1465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1458 Invalid, 6 Unknown, 0 Unchecked, 29.3s Time] [2022-11-23 14:09:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105308 states. [2022-11-23 14:10:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105308 to 105108. [2022-11-23 14:10:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105108 states, 67538 states have (on average 1.351002398649649) internal successors, (91244), 70008 states have internal predecessors, (91244), 31689 states have call successors, (31689), 5892 states have call predecessors, (31689), 5880 states have return successors, (39303), 30557 states have call predecessors, (39303), 31687 states have call successors, (39303) [2022-11-23 14:10:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105108 states to 105108 states and 162236 transitions. [2022-11-23 14:10:02,338 INFO L78 Accepts]: Start accepts. Automaton has 105108 states and 162236 transitions. Word has length 935 [2022-11-23 14:10:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:02,340 INFO L495 AbstractCegarLoop]: Abstraction has 105108 states and 162236 transitions. [2022-11-23 14:10:02,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (97), 2 states have call predecessors, (97), 2 states have call successors, (97) [2022-11-23 14:10:02,341 INFO L276 IsEmpty]: Start isEmpty. Operand 105108 states and 162236 transitions. [2022-11-23 14:10:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2022-11-23 14:10:02,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:02,844 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 20, 20, 20, 20, 20, 20, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:02,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:10:02,844 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:02,845 INFO L85 PathProgramCache]: Analyzing trace with hash -888129416, now seen corresponding path program 1 times [2022-11-23 14:10:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:02,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180804360] [2022-11-23 14:10:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:03,895 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:10:03,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403656185] [2022-11-23 14:10:03,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:03,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:03,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:10:03,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:10:03,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:10:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:08,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 16490 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:10:08,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:10:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 19647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19647 trivial. 0 not checked. [2022-11-23 14:10:13,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:10:13,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:13,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180804360] [2022-11-23 14:10:13,326 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:10:13,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403656185] [2022-11-23 14:10:13,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403656185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:13,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:13,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:10:13,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135029024] [2022-11-23 14:10:13,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:13,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:13,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:13,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:13,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:13,330 INFO L87 Difference]: Start difference. First operand 105108 states and 162236 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (93), 2 states have call predecessors, (93), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2022-11-23 14:10:15,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:18,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:21,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:22,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:27,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:29,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:36,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:38,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:39,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:42,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:46,596 INFO L93 Difference]: Finished difference Result 117758 states and 183433 transitions. [2022-11-23 14:10:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (93), 2 states have call predecessors, (93), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 976 [2022-11-23 14:10:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:47,276 INFO L225 Difference]: With dead ends: 117758 [2022-11-23 14:10:47,277 INFO L226 Difference]: Without dead ends: 117754 [2022-11-23 14:10:47,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 974 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:47,347 INFO L413 NwaCegarLoop]: 9357 mSDtfsCounter, 5802 mSDsluCounter, 5422 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5802 SdHoareTripleChecker+Valid, 14779 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:47,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5802 Valid, 14779 Invalid, 1521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1513 Invalid, 5 Unknown, 0 Unchecked, 29.8s Time] [2022-11-23 14:10:47,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117754 states. [2022-11-23 14:10:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117754 to 113406. [2022-11-23 14:10:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113406 states, 74340 states have (on average 1.367635189669088) internal successors, (101670), 76881 states have internal predecessors, (101670), 32749 states have call successors, (32749), 6360 states have call predecessors, (32749), 6316 states have return successors, (41356), 31534 states have call predecessors, (41356), 32747 states have call successors, (41356) [2022-11-23 14:10:53,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113406 states to 113406 states and 175775 transitions. [2022-11-23 14:10:53,418 INFO L78 Accepts]: Start accepts. Automaton has 113406 states and 175775 transitions. Word has length 976 [2022-11-23 14:10:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:53,418 INFO L495 AbstractCegarLoop]: Abstraction has 113406 states and 175775 transitions. [2022-11-23 14:10:53,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (93), 2 states have call predecessors, (93), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2022-11-23 14:10:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 113406 states and 175775 transitions. [2022-11-23 14:10:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2022-11-23 14:10:53,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:53,571 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 21, 21, 20, 20, 20, 20, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:53,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:53,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_506a0a9b-64ca-4779-8dc0-8d5e57850b8e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:10:53,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash 655720741, now seen corresponding path program 1 times [2022-11-23 14:10:53,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:53,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389397875] [2022-11-23 14:10:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 13219 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13202 trivial. 0 not checked. [2022-11-23 14:10:56,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:56,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389397875] [2022-11-23 14:10:56,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389397875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:56,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:56,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634782027] [2022-11-23 14:10:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:56,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:56,433 INFO L87 Difference]: Start difference. First operand 113406 states and 175775 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2022-11-23 14:10:58,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:00,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:03,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:09,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:10,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:12,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:16,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:19,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:22,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:28,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:28,116 INFO L93 Difference]: Finished difference Result 226675 states and 351344 transitions. [2022-11-23 14:11:28,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:11:28,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 988 [2022-11-23 14:11:28,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:28,932 INFO L225 Difference]: With dead ends: 226675 [2022-11-23 14:11:28,933 INFO L226 Difference]: Without dead ends: 113388 [2022-11-23 14:11:29,408 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:11:29,409 INFO L413 NwaCegarLoop]: 6633 mSDtfsCounter, 0 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13263 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:29,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13263 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1354 Invalid, 7 Unknown, 0 Unchecked, 26.5s Time] [2022-11-23 14:11:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113388 states. [2022-11-23 14:11:35,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113388 to 113364. [2022-11-23 14:11:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113364 states, 74298 states have (on average 1.36751998707906) internal successors, (101604), 76851 states have internal predecessors, (101604), 32749 states have call successors, (32749), 6360 states have call predecessors, (32749), 6316 states have return successors, (41356), 31522 states have call predecessors, (41356), 32747 states have call successors, (41356) [2022-11-23 14:11:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113364 states to 113364 states and 175709 transitions. [2022-11-23 14:11:36,032 INFO L78 Accepts]: Start accepts. Automaton has 113364 states and 175709 transitions. Word has length 988 [2022-11-23 14:11:36,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:36,033 INFO L495 AbstractCegarLoop]: Abstraction has 113364 states and 175709 transitions. [2022-11-23 14:11:36,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2022-11-23 14:11:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 113364 states and 175709 transitions. [2022-11-23 14:11:36,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2022-11-23 14:11:36,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:36,267 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 21, 21, 20, 20, 20, 20, 5, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:11:36,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:11:36,267 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:11:36,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:36,268 INFO L85 PathProgramCache]: Analyzing trace with hash -239704823, now seen corresponding path program 1 times [2022-11-23 14:11:36,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:36,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525987587] [2022-11-23 14:11:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:36,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms