./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--crypto--qat--qat_common--intel_qat.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/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_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/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_0860bb96-a394-4956-b978-75f0dc7d3daf/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 241c7b85b75a318a4203bcb947e5338118d62403403860a951e0e444656bbeb8 --- 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 14:50:33,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:50:33,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:50:33,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:50:33,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:50:33,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:50:33,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:50:33,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:50:33,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:50:33,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:50:33,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:50:33,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:50:33,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:50:33,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:50:33,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:50:33,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:50:33,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:50:33,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:50:33,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:50:33,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:50:33,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:50:33,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:50:33,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:50:33,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:50:33,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:50:33,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:50:33,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:50:33,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:50:33,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:50:33,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:50:33,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:50:33,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:50:33,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:50:33,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:50:33,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:50:33,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:50:33,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:50:33,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:50:33,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:50:33,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:50:33,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:50:33,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:50:33,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:50:33,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:50:33,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:50:33,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:50:33,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:50:33,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:50:33,913 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:50:33,913 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:50:33,914 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:50:33,915 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:50:33,915 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:50:33,915 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:50:33,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:50:33,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:50:33,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:50:33,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:50:33,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:50:33,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:50:33,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:50:33,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:50:33,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:50:33,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:50:33,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:50:33,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:33,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:50:33,918 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:50:33,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:50:33,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:50:33,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:50:33,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:50:33,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:50:33,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:50:33,919 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_0860bb96-a394-4956-b978-75f0dc7d3daf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 241c7b85b75a318a4203bcb947e5338118d62403403860a951e0e444656bbeb8 [2022-11-23 14:50:34,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:50:34,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:50:34,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:50:34,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:50:34,256 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:50:34,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i [2022-11-23 14:50:37,196 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:50:37,906 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:50:37,907 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i [2022-11-23 14:50:37,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/data/a494069b7/1364d970c38a44a4acd7297dc9c226da/FLAGae4aaaa6d [2022-11-23 14:50:37,992 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/data/a494069b7/1364d970c38a44a4acd7297dc9c226da [2022-11-23 14:50:37,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:50:37,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:50:38,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:38,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:50:38,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:50:38,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:37" (1/1) ... [2022-11-23 14:50:38,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f12693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:38, skipping insertion in model container [2022-11-23 14:50:38,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:37" (1/1) ... [2022-11-23 14:50:38,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:50:38,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:50:43,161 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_0860bb96-a394-4956-b978-75f0dc7d3daf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i[498572,498585] [2022-11-23 14:50:43,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:43,340 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:50:44,066 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_0860bb96-a394-4956-b978-75f0dc7d3daf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i[498572,498585] [2022-11-23 14:50:44,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:44,320 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:50:44,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44 WrapperNode [2022-11-23 14:50:44,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:44,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:44,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:50:44,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:50:44,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:44,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:44,969 INFO L138 Inliner]: procedures = 600, calls = 5743, calls flagged for inlining = 269, calls inlined = 235, statements flattened = 11633 [2022-11-23 14:50:44,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:44,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:50:44,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:50:44,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:50:44,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:44,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,607 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:50:45,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:50:45,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:50:45,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:50:45,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (1/1) ... [2022-11-23 14:50:45,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:45,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:45,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:50:45,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0860bb96-a394-4956-b978-75f0dc7d3daf/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:50:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:50:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:50:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_ae_csr [2022-11-23 14:50:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_ae_csr [2022-11-23 14:50:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 14:50:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-23 14:50:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-23 14:50:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:50:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:50:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure adf_error_detected [2022-11-23 14:50:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_error_detected [2022-11-23 14:50:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-23 14:50:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-23 14:50:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 14:50:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 14:50:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_section_add [2022-11-23 14:50:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_section_add [2022-11-23 14:50:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:50:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:50:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_shash_tfm [2022-11-23 14:50:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_shash_tfm [2022-11-23 14:50:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-23 14:50:45,833 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-23 14:50:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:50:45,834 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:50:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:50:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:50:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_disable_ctx [2022-11-23 14:50:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_disable_ctx [2022-11-23 14:50:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_get_reg_addr [2022-11-23 14:50:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_get_reg_addr [2022-11-23 14:50:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure __crypto_aead_cast [2022-11-23 14:50:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __crypto_aead_cast [2022-11-23 14:50:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-23 14:50:45,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-23 14:50:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:50:45,837 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:50:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_aead_tfm [2022-11-23 14:50:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_aead_tfm [2022-11-23 14:50:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_tfm_ctx [2022-11-23 14:50:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_tfm_ctx [2022-11-23 14:50:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_put_wakeup_event [2022-11-23 14:50:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_put_wakeup_event [2022-11-23 14:50:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_shutdown [2022-11-23 14:50:45,839 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_shutdown [2022-11-23 14:50:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_rd_rel_reg [2022-11-23 14:50:45,839 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_rd_rel_reg [2022-11-23 14:50:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:50:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:50:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-23 14:50:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_rd_ae_csr [2022-11-23 14:50:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_rd_ae_csr [2022-11-23 14:50:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:50:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:50:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure adf_devmgr_pci_to_accel_dev [2022-11-23 14:50:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_devmgr_pci_to_accel_dev [2022-11-23 14:50:45,842 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cleanup_etr_data [2022-11-23 14:50:45,842 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cleanup_etr_data [2022-11-23 14:50:45,842 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_clr_reset [2022-11-23 14:50:45,842 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_clr_reset [2022-11-23 14:50:45,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:50:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_set_uword_ecc [2022-11-23 14:50:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_set_uword_ecc [2022-11-23 14:50:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-23 14:50:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-23 14:50:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-23 14:50:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-23 14:50:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-23 14:50:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-23 14:50:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 14:50:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 14:50:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-23 14:50:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-23 14:50:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_uwords [2022-11-23 14:50:45,846 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_uwords [2022-11-23 14:50:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:50:45,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:50:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure adf_devmgr_get_head [2022-11-23 14:50:45,846 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_devmgr_get_head [2022-11-23 14:50:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-23 14:50:45,847 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-23 14:50:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_del_all [2022-11-23 14:50:45,848 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_del_all [2022-11-23 14:50:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure aead_request_ctx [2022-11-23 14:50:45,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aead_request_ctx [2022-11-23 14:50:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:50:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_init [2022-11-23 14:50:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_init [2022-11-23 14:50:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:50:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:50:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:50:45,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:50:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 14:50:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-23 14:50:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:50:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure adf_service_unregister [2022-11-23 14:50:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_service_unregister [2022-11-23 14:50:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2022-11-23 14:50:45,852 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2022-11-23 14:50:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:50:45,852 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 14:50:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 14:50:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_ablkcipher_reqtfm [2022-11-23 14:50:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_ablkcipher_reqtfm [2022-11-23 14:50:45,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:50:45,853 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:50:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure adf_bank_open [2022-11-23 14:50:45,854 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_bank_open [2022-11-23 14:50:45,854 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_free_instances [2022-11-23 14:50:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_free_instances [2022-11-23 14:50:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_free_bufl [2022-11-23 14:50:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_free_bufl [2022-11-23 14:50:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-23 14:50:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-23 14:50:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 14:50:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 14:50:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 14:50:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 14:50:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 14:50:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 14:50:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2022-11-23 14:50:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2022-11-23 14:50:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-23 14:50:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-23 14:50:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_aead_init [2022-11-23 14:50:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_aead_init [2022-11-23 14:50:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_find_chunk [2022-11-23 14:50:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_find_chunk [2022-11-23 14:50:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:50:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:50:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:50:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_init_reg [2022-11-23 14:50:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_init_reg [2022-11-23 14:50:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ring_stop [2022-11-23 14:50:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ring_stop [2022-11-23 14:50:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-23 14:50:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 14:50:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 14:50:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-23 14:50:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-23 14:50:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 14:50:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 14:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_exec_micro_inst [2022-11-23 14:50:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_exec_micro_inst [2022-11-23 14:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure adf_exit_aer [2022-11-23 14:50:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_exit_aer [2022-11-23 14:50:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_get_uwords [2022-11-23 14:50:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_get_uwords [2022-11-23 14:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure adf_create_ring [2022-11-23 14:50:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_create_ring [2022-11-23 14:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:50:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cleanup_ring [2022-11-23 14:50:45,874 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cleanup_ring [2022-11-23 14:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure adf_modulo [2022-11-23 14:50:45,874 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_modulo [2022-11-23 14:50:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:50:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_create_batch_init_list [2022-11-23 14:50:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_create_batch_init_list [2022-11-23 14:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:50:45,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:50:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_convert_abs_to_rel [2022-11-23 14:50:45,876 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_convert_abs_to_rel [2022-11-23 14:50:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure adf_send_message [2022-11-23 14:50:45,876 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_send_message [2022-11-23 14:50:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_init_rd_xfer [2022-11-23 14:50:45,877 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_init_rd_xfer [2022-11-23 14:50:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure adf_chr_drv_destroy [2022-11-23 14:50:45,877 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_chr_drv_destroy [2022-11-23 14:50:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-23 14:50:45,877 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-23 14:50:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_put_sig_event [2022-11-23 14:50:45,878 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_put_sig_event [2022-11-23 14:50:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:50:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:50:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_stop [2022-11-23 14:50:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_stop [2022-11-23 14:50:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_event_handler [2022-11-23 14:50:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_event_handler [2022-11-23 14:50:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:50:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-23 14:50:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:50:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_parity_64bit [2022-11-23 14:50:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_parity_64bit [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 14:50:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2022-11-23 14:50:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:50:45,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:50:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_init [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_init [2022-11-23 14:50:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_add_key_value_param [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_add_key_value_param [2022-11-23 14:50:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_indr_csr [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_indr_csr [2022-11-23 14:50:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2022-11-23 14:50:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_put_instance [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_put_instance [2022-11-23 14:50:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-23 14:50:45,982 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_put_rel_wr_xfer [2022-11-23 14:50:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_put_rel_wr_xfer [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure adf_unreserve_ring [2022-11-23 14:50:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_unreserve_ring [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:50:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2022-11-23 14:50:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:50:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-11-23 14:50:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-11-23 14:50:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ctl_ioctl [2022-11-23 14:50:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ctl_ioctl [2022-11-23 14:50:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_section_del_all [2022-11-23 14:50:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_section_del_all [2022-11-23 14:50:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure qat_dev_cfg_show [2022-11-23 14:50:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_dev_cfg_show [2022-11-23 14:50:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_fetch_initmem_ae [2022-11-23 14:50:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_fetch_initmem_ae [2022-11-23 14:50:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_enable_ctx [2022-11-23 14:50:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_enable_ctx [2022-11-23 14:50:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 14:50:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 14:50:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:50:45,986 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:50:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure adf_bank_show [2022-11-23 14:50:45,986 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_bank_show [2022-11-23 14:50:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 14:50:45,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 14:50:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:50:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:50:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_sec_find [2022-11-23 14:50:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_sec_find [2022-11-23 14:50:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ring_show [2022-11-23 14:50:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ring_show [2022-11-23 14:50:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_deinit [2022-11-23 14:50:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_deinit [2022-11-23 14:50:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 14:50:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 14:50:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_node [2022-11-23 14:50:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_node [2022-11-23 14:50:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ctl_alloc_resources [2022-11-23 14:50:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ctl_alloc_resources [2022-11-23 14:50:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:50:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:50:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:50:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:50:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure adf_devmgr_get_dev_by_id [2022-11-23 14:50:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_devmgr_get_dev_by_id [2022-11-23 14:50:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-23 14:50:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-23 14:50:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 14:50:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 14:50:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_set_ae_lm_mode [2022-11-23 14:50:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_set_ae_lm_mode [2022-11-23 14:50:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure qat_dev_cfg_open [2022-11-23 14:50:46,003 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_dev_cfg_open [2022-11-23 14:50:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ae_fw_release [2022-11-23 14:50:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ae_fw_release [2022-11-23 14:50:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-23 14:50:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-23 14:50:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure ablkcipher_request_ctx [2022-11-23 14:50:46,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ablkcipher_request_ctx [2022-11-23 14:50:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:50:46,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_operations_3 [2022-11-23 14:50:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_operations_3 [2022-11-23 14:50:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure adf_init_etr_data [2022-11-23 14:50:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_init_etr_data [2022-11-23 14:50:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-11-23 14:50:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-11-23 14:50:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:50:46,005 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:50:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 14:50:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 14:50:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-23 14:50:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-23 14:50:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_restarted_notify [2022-11-23 14:50:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_restarted_notify [2022-11-23 14:50:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 14:50:46,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 14:50:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_shutdown [2022-11-23 14:50:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_shutdown [2022-11-23 14:50:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:50:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:50:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure adf_ring_open [2022-11-23 14:50:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_ring_open [2022-11-23 14:50:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure adf_remove_ring [2022-11-23 14:50:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_remove_ring [2022-11-23 14:50:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 14:50:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 14:50:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_aead_reqtfm [2022-11-23 14:50:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_aead_reqtfm [2022-11-23 14:50:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_sgl_to_bufl [2022-11-23 14:50:46,008 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_sgl_to_bufl [2022-11-23 14:50:46,008 INFO L130 BoogieDeclarations]: Found specification of procedure qat_crypto_create_instances [2022-11-23 14:50:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_crypto_create_instances [2022-11-23 14:50:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 14:50:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 14:50:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:50:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:50:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure adf_cfg_get_param_value [2022-11-23 14:50:46,009 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_cfg_get_param_value [2022-11-23 14:50:46,009 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-23 14:50:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-23 14:50:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure adf_resume [2022-11-23 14:50:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_resume [2022-11-23 14:50:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-11-23 14:50:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-11-23 14:50:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:50:46,010 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2022-11-23 14:50:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2022-11-23 14:50:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_rd_indr_csr [2022-11-23 14:50:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_rd_indr_csr [2022-11-23 14:50:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:50:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:50:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure qat_dev_cfg_stop [2022-11-23 14:50:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_dev_cfg_stop [2022-11-23 14:50:46,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-23 14:50:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-23 14:50:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure adf_get_cfg_int [2022-11-23 14:50:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_get_cfg_int [2022-11-23 14:50:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure adf_bank_stop [2022-11-23 14:50:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_bank_stop [2022-11-23 14:50:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure adf_device_reset_worker [2022-11-23 14:50:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_device_reset_worker [2022-11-23 14:50:46,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:50:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:50:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 14:50:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 14:50:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_restarting_notify [2022-11-23 14:50:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_restarting_notify [2022-11-23 14:50:46,013 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_started [2022-11-23 14:50:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_started [2022-11-23 14:50:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2022-11-23 14:50:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2022-11-23 14:50:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure qat_alg_aead_enc_internal [2022-11-23 14:50:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_alg_aead_enc_internal [2022-11-23 14:50:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-23 14:50:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-23 14:50:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 14:50:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 14:50:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure adf_slot_reset [2022-11-23 14:50:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_slot_reset [2022-11-23 14:50:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure qat_uclo_cleanup_batch_init_list [2022-11-23 14:50:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_uclo_cleanup_batch_init_list [2022-11-23 14:50:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-11-23 14:50:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-11-23 14:50:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wait_cycles [2022-11-23 14:50:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wait_cycles [2022-11-23 14:50:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-23 14:50:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-23 14:50:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-23 14:50:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-23 14:50:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-23 14:50:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-23 14:50:46,016 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-11-23 14:50:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-11-23 14:50:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure qat_algs_exit [2022-11-23 14:50:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_algs_exit [2022-11-23 14:50:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_aead_crt [2022-11-23 14:50:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_aead_crt [2022-11-23 14:50:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:50:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:50:46,017 INFO L130 BoogieDeclarations]: Found specification of procedure adf_service_register [2022-11-23 14:50:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_service_register [2022-11-23 14:50:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure adf_dev_start [2022-11-23 14:50:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_dev_start [2022-11-23 14:50:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2022-11-23 14:50:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2022-11-23 14:50:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_ablkcipher_tfm [2022-11-23 14:50:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_ablkcipher_tfm [2022-11-23 14:50:46,018 INFO L130 BoogieDeclarations]: Found specification of procedure adf_verify_ring_size [2022-11-23 14:50:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure adf_verify_ring_size [2022-11-23 14:50:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:50:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure qat_hal_wr_rel_reg [2022-11-23 14:50:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure qat_hal_wr_rel_reg [2022-11-23 14:50:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 14:50:46,019 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtouint [2022-11-23 14:50:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtouint [2022-11-23 14:50:47,482 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:50:47,488 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:50:47,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:59:20,803 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:59:25,367 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:59:25,368 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-23 14:59:25,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:25 BoogieIcfgContainer [2022-11-23 14:59:25,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:59:25,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:59:25,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:59:25,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:59:25,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:37" (1/3) ... [2022-11-23 14:59:25,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef7301a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:25, skipping insertion in model container [2022-11-23 14:59:25,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:44" (2/3) ... [2022-11-23 14:59:25,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef7301a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:25, skipping insertion in model container [2022-11-23 14:59:25,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:25" (3/3) ... [2022-11-23 14:59:25,389 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--crypto--qat--qat_common--intel_qat.ko-entry_point.cil.out.i [2022-11-23 14:59:25,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:59:25,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:59:25,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:59:25,556 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;@3676a0c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:59:25,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:59:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 3060 states, 1964 states have (on average 1.34928716904277) internal successors, (2650), 2019 states have internal predecessors, (2650), 911 states have call successors, (911), 184 states have call predecessors, (911), 183 states have return successors, (901), 896 states have call predecessors, (901), 901 states have call successors, (901) [2022-11-23 14:59:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 14:59:25,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:25,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:25,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:59:25,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1940638063, now seen corresponding path program 1 times [2022-11-23 14:59:25,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:25,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314427376] [2022-11-23 14:59:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-23 14:59:27,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:27,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314427376] [2022-11-23 14:59:27,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314427376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:27,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:27,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:59:27,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659501840] [2022-11-23 14:59:27,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:27,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:59:27,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:27,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:59:27,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:27,416 INFO L87 Difference]: Start difference. First operand has 3060 states, 1964 states have (on average 1.34928716904277) internal successors, (2650), 2019 states have internal predecessors, (2650), 911 states have call successors, (911), 184 states have call predecessors, (911), 183 states have return successors, (901), 896 states have call predecessors, (901), 901 states have call successors, (901) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 14:59:29,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:37,212 INFO L93 Difference]: Finished difference Result 8916 states and 13209 transitions. [2022-11-23 14:59:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:59:37,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2022-11-23 14:59:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:37,271 INFO L225 Difference]: With dead ends: 8916 [2022-11-23 14:59:37,271 INFO L226 Difference]: Without dead ends: 5826 [2022-11-23 14:59:37,302 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 14:59:37,305 INFO L413 NwaCegarLoop]: 4900 mSDtfsCounter, 4087 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 8948 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:37,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4087 Valid, 8948 Invalid, 784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 777 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-23 14:59:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2022-11-23 14:59:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 5822. [2022-11-23 14:59:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5822 states, 3749 states have (on average 1.3406241664443852) internal successors, (5026), 3834 states have internal predecessors, (5026), 1718 states have call successors, (1718), 356 states have call predecessors, (1718), 354 states have return successors, (1716), 1703 states have call predecessors, (1716), 1716 states have call successors, (1716) [2022-11-23 14:59:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 8460 transitions. [2022-11-23 14:59:37,755 INFO L78 Accepts]: Start accepts. Automaton has 5822 states and 8460 transitions. Word has length 57 [2022-11-23 14:59:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:37,757 INFO L495 AbstractCegarLoop]: Abstraction has 5822 states and 8460 transitions. [2022-11-23 14:59:37,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-23 14:59:37,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5822 states and 8460 transitions. [2022-11-23 14:59:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-23 14:59:37,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:37,768 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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] [2022-11-23 14:59:37,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:59:37,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:59:37,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:37,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1710793205, now seen corresponding path program 1 times [2022-11-23 14:59:37,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:37,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984622780] [2022-11-23 14:59:37,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:39,034 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-23 14:59:39,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:39,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984622780] [2022-11-23 14:59:39,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984622780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:39,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:39,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:59:39,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777097374] [2022-11-23 14:59:39,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:39,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:59:39,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:59:39,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:39,042 INFO L87 Difference]: Start difference. First operand 5822 states and 8460 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:59:41,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:59:49,004 WARN L539 Checker$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 14:59:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:59:49,829 INFO L93 Difference]: Finished difference Result 17254 states and 25073 transitions. [2022-11-23 14:59:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:59:49,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2022-11-23 14:59:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:59:49,918 INFO L225 Difference]: With dead ends: 17254 [2022-11-23 14:59:49,918 INFO L226 Difference]: Without dead ends: 11441 [2022-11-23 14:59:49,959 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 14:59:49,960 INFO L413 NwaCegarLoop]: 5125 mSDtfsCounter, 4257 mSDsluCounter, 4004 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4260 SdHoareTripleChecker+Valid, 9129 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:59:49,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4260 Valid, 9129 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 809 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-11-23 14:59:49,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-11-23 14:59:50,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 11438. [2022-11-23 14:59:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11438 states, 7362 states have (on average 1.3395816354251562) internal successors, (9862), 7532 states have internal predecessors, (9862), 3379 states have call successors, (3379), 699 states have call predecessors, (3379), 696 states have return successors, (3381), 3350 states have call predecessors, (3381), 3376 states have call successors, (3381) [2022-11-23 14:59:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11438 states to 11438 states and 16622 transitions. [2022-11-23 14:59:50,609 INFO L78 Accepts]: Start accepts. Automaton has 11438 states and 16622 transitions. Word has length 94 [2022-11-23 14:59:50,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:59:50,609 INFO L495 AbstractCegarLoop]: Abstraction has 11438 states and 16622 transitions. [2022-11-23 14:59:50,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:59:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 11438 states and 16622 transitions. [2022-11-23 14:59:50,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-23 14:59:50,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:59:50,619 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:50,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:59:50,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:59:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:59:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1388561889, now seen corresponding path program 1 times [2022-11-23 14:59:50,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:59:50,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186587486] [2022-11-23 14:59:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:59:50,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:59:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:59:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-23 14:59:52,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:59:52,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186587486] [2022-11-23 14:59:52,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186587486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:59:52,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:59:52,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:59:52,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562992525] [2022-11-23 14:59:52,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:59:52,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:59:52,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:59:52,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:59:52,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:59:52,075 INFO L87 Difference]: Start difference. First operand 11438 states and 16622 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:59:54,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:00,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:04,684 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 15:00:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:05,968 INFO L93 Difference]: Finished difference Result 34036 states and 49465 transitions. [2022-11-23 15:00:05,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:00:05,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2022-11-23 15:00:05,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:06,108 INFO L225 Difference]: With dead ends: 34036 [2022-11-23 15:00:06,108 INFO L226 Difference]: Without dead ends: 22597 [2022-11-23 15:00:06,176 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 15:00:06,177 INFO L413 NwaCegarLoop]: 7569 mSDtfsCounter, 4366 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4369 SdHoareTripleChecker+Valid, 11542 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:06,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4369 Valid, 11542 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1070 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-11-23 15:00:06,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22597 states. [2022-11-23 15:00:07,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22597 to 22584. [2022-11-23 15:00:07,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22584 states, 14548 states have (on average 1.3386032444322244) internal successors, (19474), 14860 states have internal predecessors, (19474), 6667 states have call successors, (6667), 1375 states have call predecessors, (6667), 1368 states have return successors, (6675), 6616 states have call predecessors, (6675), 6660 states have call successors, (6675) [2022-11-23 15:00:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22584 states to 22584 states and 32816 transitions. [2022-11-23 15:00:07,358 INFO L78 Accepts]: Start accepts. Automaton has 22584 states and 32816 transitions. Word has length 127 [2022-11-23 15:00:07,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:07,359 INFO L495 AbstractCegarLoop]: Abstraction has 22584 states and 32816 transitions. [2022-11-23 15:00:07,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 15:00:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 22584 states and 32816 transitions. [2022-11-23 15:00:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-23 15:00:07,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:07,373 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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] [2022-11-23 15:00:07,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:00:07,374 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:07,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1926352453, now seen corresponding path program 1 times [2022-11-23 15:00:07,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:07,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032461506] [2022-11-23 15:00:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:07,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-23 15:00:09,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:09,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032461506] [2022-11-23 15:00:09,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032461506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:09,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:09,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:00:09,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23239836] [2022-11-23 15:00:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:09,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:00:09,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:00:09,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:00:09,204 INFO L87 Difference]: Start difference. First operand 22584 states and 32816 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:00:11,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:19,617 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 15:00:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:21,883 INFO L93 Difference]: Finished difference Result 45167 states and 65627 transitions. [2022-11-23 15:00:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:00:21,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2022-11-23 15:00:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:22,010 INFO L225 Difference]: With dead ends: 45167 [2022-11-23 15:00:22,010 INFO L226 Difference]: Without dead ends: 22508 [2022-11-23 15:00:22,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:22,102 INFO L413 NwaCegarLoop]: 4033 mSDtfsCounter, 1 mSDsluCounter, 8061 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12094 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:22,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12094 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1156 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-11-23 15:00:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22508 states. [2022-11-23 15:00:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22508 to 22508. [2022-11-23 15:00:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22508 states, 14512 states have (on average 1.3380650496141124) internal successors, (19418), 14812 states have internal predecessors, (19418), 6647 states have call successors, (6647), 1361 states have call predecessors, (6647), 1348 states have return successors, (6643), 6588 states have call predecessors, (6643), 6628 states have call successors, (6643) [2022-11-23 15:00:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22508 states to 22508 states and 32708 transitions. [2022-11-23 15:00:23,287 INFO L78 Accepts]: Start accepts. Automaton has 22508 states and 32708 transitions. Word has length 126 [2022-11-23 15:00:23,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:23,289 INFO L495 AbstractCegarLoop]: Abstraction has 22508 states and 32708 transitions. [2022-11-23 15:00:23,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 15:00:23,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22508 states and 32708 transitions. [2022-11-23 15:00:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-23 15:00:23,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:23,301 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:23,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:00:23,301 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:23,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash 90357660, now seen corresponding path program 1 times [2022-11-23 15:00:23,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:23,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670040475] [2022-11-23 15:00:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:23,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-23 15:00:24,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:24,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670040475] [2022-11-23 15:00:24,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670040475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:24,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:24,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:00:24,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254769621] [2022-11-23 15:00:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:24,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:00:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:24,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:00:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:00:24,904 INFO L87 Difference]: Start difference. First operand 22508 states and 32708 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 15:00:27,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:35,889 INFO L93 Difference]: Finished difference Result 40334 states and 58573 transitions. [2022-11-23 15:00:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:00:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2022-11-23 15:00:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:35,995 INFO L225 Difference]: With dead ends: 40334 [2022-11-23 15:00:35,995 INFO L226 Difference]: Without dead ends: 17779 [2022-11-23 15:00:36,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:36,116 INFO L413 NwaCegarLoop]: 4016 mSDtfsCounter, 1 mSDsluCounter, 8029 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12045 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:36,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12045 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1144 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 15:00:36,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17779 states. [2022-11-23 15:00:36,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17779 to 17775. [2022-11-23 15:00:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17775 states, 11482 states have (on average 1.3403588225047902) internal successors, (15390), 11716 states have internal predecessors, (15390), 5209 states have call successors, (5209), 1092 states have call predecessors, (5209), 1083 states have return successors, (5207), 5164 states have call predecessors, (5207), 5196 states have call successors, (5207) [2022-11-23 15:00:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17775 states to 17775 states and 25806 transitions. [2022-11-23 15:00:37,119 INFO L78 Accepts]: Start accepts. Automaton has 17775 states and 25806 transitions. Word has length 144 [2022-11-23 15:00:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:37,120 INFO L495 AbstractCegarLoop]: Abstraction has 17775 states and 25806 transitions. [2022-11-23 15:00:37,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 15:00:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 17775 states and 25806 transitions. [2022-11-23 15:00:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-23 15:00:37,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:37,126 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:37,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:00:37,127 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:37,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:37,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1412732525, now seen corresponding path program 1 times [2022-11-23 15:00:37,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:37,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901677346] [2022-11-23 15:00:37,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:37,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:38,994 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-23 15:00:38,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:38,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901677346] [2022-11-23 15:00:38,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901677346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:38,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:38,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:00:38,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194259311] [2022-11-23 15:00:38,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:38,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:00:38,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:00:38,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:00:38,996 INFO L87 Difference]: Start difference. First operand 17775 states and 25806 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-23 15:00:41,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:48,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:50,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:00:56,109 WARN L539 Checker$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 15:00:58,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:58,622 INFO L93 Difference]: Finished difference Result 38932 states and 56459 transitions. [2022-11-23 15:00:58,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:00:58,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2022-11-23 15:00:58,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:58,733 INFO L225 Difference]: With dead ends: 38932 [2022-11-23 15:00:58,734 INFO L226 Difference]: Without dead ends: 21166 [2022-11-23 15:00:58,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:58,816 INFO L413 NwaCegarLoop]: 7186 mSDtfsCounter, 4581 mSDsluCounter, 10494 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 111 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 17680 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:58,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4581 Valid, 17680 Invalid, 1872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 1760 Invalid, 1 Unknown, 0 Unchecked, 18.7s Time] [2022-11-23 15:00:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21166 states. [2022-11-23 15:00:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21166 to 18717. [2022-11-23 15:00:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18717 states, 12018 states have (on average 1.3332501248127808) internal successors, (16023), 12266 states have internal predecessors, (16023), 5557 states have call successors, (5557), 1150 states have call predecessors, (5557), 1141 states have return successors, (5553), 5508 states have call predecessors, (5553), 5544 states have call successors, (5553) [2022-11-23 15:00:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18717 states to 18717 states and 27133 transitions. [2022-11-23 15:00:59,857 INFO L78 Accepts]: Start accepts. Automaton has 18717 states and 27133 transitions. Word has length 154 [2022-11-23 15:00:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:59,858 INFO L495 AbstractCegarLoop]: Abstraction has 18717 states and 27133 transitions. [2022-11-23 15:00:59,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-23 15:00:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 18717 states and 27133 transitions. [2022-11-23 15:00:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-23 15:00:59,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:59,864 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:59,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:00:59,865 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:59,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2008760250, now seen corresponding path program 1 times [2022-11-23 15:00:59,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:59,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099873415] [2022-11-23 15:00:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:59,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-23 15:01:01,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:01,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099873415] [2022-11-23 15:01:01,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099873415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:01:01,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:01:01,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:01:01,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368075956] [2022-11-23 15:01:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:01:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:01:01,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:01:01,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:01:01,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:01:01,354 INFO L87 Difference]: Start difference. First operand 18717 states and 27133 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:01:03,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:13,024 INFO L93 Difference]: Finished difference Result 35403 states and 51337 transitions. [2022-11-23 15:01:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:01:13,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2022-11-23 15:01:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:13,131 INFO L225 Difference]: With dead ends: 35403 [2022-11-23 15:01:13,132 INFO L226 Difference]: Without dead ends: 21781 [2022-11-23 15:01:13,199 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 15:01:13,200 INFO L413 NwaCegarLoop]: 5331 mSDtfsCounter, 4003 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4003 SdHoareTripleChecker+Valid, 9302 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:13,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4003 Valid, 9302 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 818 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-11-23 15:01:13,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21781 states. [2022-11-23 15:01:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21781 to 21739. [2022-11-23 15:01:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21739 states, 13985 states have (on average 1.335073292813729) internal successors, (18671), 14269 states have internal predecessors, (18671), 6421 states have call successors, (6421), 1341 states have call predecessors, (6421), 1332 states have return successors, (6417), 6367 states have call predecessors, (6417), 6408 states have call successors, (6417) [2022-11-23 15:01:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21739 states to 21739 states and 31509 transitions. [2022-11-23 15:01:14,587 INFO L78 Accepts]: Start accepts. Automaton has 21739 states and 31509 transitions. Word has length 160 [2022-11-23 15:01:14,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:14,589 INFO L495 AbstractCegarLoop]: Abstraction has 21739 states and 31509 transitions. [2022-11-23 15:01:14,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:01:14,589 INFO L276 IsEmpty]: Start isEmpty. Operand 21739 states and 31509 transitions. [2022-11-23 15:01:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-23 15:01:14,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:01:14,596 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:01:14,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:01:14,597 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:01:14,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:01:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2118611881, now seen corresponding path program 1 times [2022-11-23 15:01:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:01:14,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920942321] [2022-11-23 15:01:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-23 15:01:16,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920942321] [2022-11-23 15:01:16,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920942321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:01:16,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:01:16,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:01:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049956235] [2022-11-23 15:01:16,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:01:16,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:01:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:01:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:01:16,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:01:16,316 INFO L87 Difference]: Start difference. First operand 21739 states and 31509 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:01:18,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:01:22,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:22,471 INFO L93 Difference]: Finished difference Result 21787 states and 31557 transitions. [2022-11-23 15:01:22,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:01:22,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2022-11-23 15:01:22,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:22,475 INFO L225 Difference]: With dead ends: 21787 [2022-11-23 15:01:22,475 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:01:22,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 15:01:22,523 INFO L413 NwaCegarLoop]: 3999 mSDtfsCounter, 4271 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4271 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:22,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4271 Valid, 4036 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 15:01:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:01:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:01:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:01:22,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:01:22,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2022-11-23 15:01:22,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:22,527 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:01:22,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 15:01:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:01:22,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:01:22,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:01:22,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:01:22,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.