./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- 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 14:07:15,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:07:15,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:07:15,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:07:15,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:07:15,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:07:15,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:07:15,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:07:15,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:07:15,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:07:15,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:07:15,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:07:15,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:07:15,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:07:15,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:07:15,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:07:15,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:07:15,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:07:15,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:07:15,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:07:15,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:07:15,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:07:15,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:07:15,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:07:15,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:07:15,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:07:15,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:07:15,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:07:15,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:07:15,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:07:15,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:07:15,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:07:15,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:07:15,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:07:15,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:07:15,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:07:15,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:07:15,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:07:15,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:07:15,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:07:15,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:07:15,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:07:15,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:07:15,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:07:15,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:07:15,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:07:15,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:07:15,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:07:15,883 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:07:15,883 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:07:15,883 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:07:15,883 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:07:15,884 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:07:15,884 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:07:15,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:07:15,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:07:15,885 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:07:15,885 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:07:15,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:07:15,886 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:07:15,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:07:15,887 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:07:15,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:07:15,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:07:15,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:07:15,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:07:15,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:07:15,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:07:15,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:07:15,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:07:15,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:07:15,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:07:15,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:07:15,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:07:15,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:07:15,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:07:15,890 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:07:15,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:07:15,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:07:15,891 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:07:15,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:07:15,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:07:15,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:07:15,891 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2022-11-23 14:07:16,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:07:16,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:07:16,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:07:16,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:07:16,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:07:16,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2022-11-23 14:07:19,289 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:07:19,667 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:07:19,668 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2022-11-23 14:07:19,690 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data/8123ef635/7aefa2f115ed465a9f9cbd89466c963b/FLAGc130b11f7 [2022-11-23 14:07:19,705 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data/8123ef635/7aefa2f115ed465a9f9cbd89466c963b [2022-11-23 14:07:19,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:07:19,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:07:19,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:07:19,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:07:19,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:07:19,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:19" (1/1) ... [2022-11-23 14:07:19,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674baa94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:19, skipping insertion in model container [2022-11-23 14:07:19,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:19" (1/1) ... [2022-11-23 14:07:19,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:07:19,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:07:19,997 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2022-11-23 14:07:21,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:07:21,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:07:21,395 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2022-11-23 14:07:21,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:07:21,809 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:07:21,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21 WrapperNode [2022-11-23 14:07:21,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:07:21,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:07:21,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:07:21,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:07:21,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:21,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:21,992 INFO L138 Inliner]: procedures = 474, calls = 839, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 1018 [2022-11-23 14:07:21,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:07:21,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:07:21,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:07:21,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:07:22,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,121 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:07:22,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:07:22,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:07:22,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:07:22,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (1/1) ... [2022-11-23 14:07:22,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:07:22,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:22,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:07:22,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:07:22,229 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-11-23 14:07:22,230 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-11-23 14:07:22,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 14:07:22,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-11-23 14:07:22,230 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:07:22,230 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:07:22,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:07:22,231 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:07:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:07:22,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 14:07:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-11-23 14:07:22,231 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-11-23 14:07:22,232 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-11-23 14:07:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:07:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:07:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:07:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-11-23 14:07:22,232 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-11-23 14:07:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:07:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:07:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:07:22,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:07:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-11-23 14:07:22,235 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-11-23 14:07:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-23 14:07:22,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-23 14:07:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-11-23 14:07:22,236 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-11-23 14:07:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:07:22,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:07:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-11-23 14:07:22,238 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-11-23 14:07:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:07:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:07:22,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:07:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 14:07:22,239 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 14:07:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:07:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:07:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 14:07:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 14:07:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-11-23 14:07:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-11-23 14:07:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 14:07:22,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 14:07:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:07:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-11-23 14:07:22,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-11-23 14:07:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-23 14:07:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-23 14:07:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 14:07:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 14:07:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-23 14:07:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-23 14:07:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-11-23 14:07:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-11-23 14:07:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-11-23 14:07:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-11-23 14:07:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:07:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-11-23 14:07:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-11-23 14:07:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-11-23 14:07:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-11-23 14:07:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2022-11-23 14:07:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2022-11-23 14:07:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:07:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:07:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:07:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:07:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:07:22,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:07:22,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:07:24,748 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:07:25,069 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:07:25,069 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 14:07:25,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:25 BoogieIcfgContainer [2022-11-23 14:07:25,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:07:25,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:07:25,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:07:25,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:07:25,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:07:19" (1/3) ... [2022-11-23 14:07:25,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487ef06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:25, skipping insertion in model container [2022-11-23 14:07:25,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:21" (2/3) ... [2022-11-23 14:07:25,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487ef06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:25, skipping insertion in model container [2022-11-23 14:07:25,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:25" (3/3) ... [2022-11-23 14:07:25,086 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2022-11-23 14:07:25,108 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:07:25,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:07:25,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:07:25,195 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;@17371207, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:07:25,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:07:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 166 states have internal predecessors, (216), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-23 14:07:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 14:07:25,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:25,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:25,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:25,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:25,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1172134757, now seen corresponding path program 1 times [2022-11-23 14:07:25,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:25,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679282685] [2022-11-23 14:07:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:25,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:25,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:25,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679282685] [2022-11-23 14:07:25,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679282685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:25,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:25,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:25,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119873891] [2022-11-23 14:07:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:25,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:25,934 INFO L87 Difference]: Start difference. First operand has 265 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 166 states have internal predecessors, (216), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:07:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:27,094 INFO L93 Difference]: Finished difference Result 528 states and 756 transitions. [2022-11-23 14:07:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:27,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-23 14:07:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:27,108 INFO L225 Difference]: With dead ends: 528 [2022-11-23 14:07:27,108 INFO L226 Difference]: Without dead ends: 261 [2022-11-23 14:07:27,113 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 14:07:27,117 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 0 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:27,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 629 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 14:07:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-11-23 14:07:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-11-23 14:07:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 158 states have (on average 1.3417721518987342) internal successors, (212), 165 states have internal predecessors, (212), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:07:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 363 transitions. [2022-11-23 14:07:27,184 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 363 transitions. Word has length 19 [2022-11-23 14:07:27,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:27,185 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 363 transitions. [2022-11-23 14:07:27,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:07:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 363 transitions. [2022-11-23 14:07:27,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:07:27,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:27,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:27,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:07:27,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:27,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:27,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1432619014, now seen corresponding path program 1 times [2022-11-23 14:07:27,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:27,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312555198] [2022-11-23 14:07:27,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:27,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:07:27,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:27,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312555198] [2022-11-23 14:07:27,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312555198] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:07:27,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547006782] [2022-11-23 14:07:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:27,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:07:27,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:27,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:07:27,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:07:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:27,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:07:27,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:07:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:07:28,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:07:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:07:28,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547006782] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:07:28,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [921615833] [2022-11-23 14:07:28,065 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-23 14:07:28,065 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:07:28,069 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:07:28,075 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:07:28,075 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:07:29,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 253 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 379 [2022-11-23 14:07:29,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 53 [2022-11-23 14:07:29,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-23 14:07:29,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 554 treesize of output 456 [2022-11-23 14:07:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:29,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 106 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 168 [2022-11-23 14:07:30,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 554 treesize of output 456 [2022-11-23 14:07:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:30,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 106 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 168 [2022-11-23 14:07:31,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:31,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 14:07:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:31,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:07:31,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:31,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:07:32,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:07:32,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:32,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:32,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:32,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:32,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:07:32,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:32,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:32,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:32,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:07:32,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:32,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:32,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:07:32,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:32,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:32,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:32,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:32,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:32,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-23 14:07:32,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:32,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:32,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:32,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:07:32,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:32,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:32,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:32,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:33,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:33,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:33,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:33,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-23 14:07:33,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:33,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:34,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-23 14:07:34,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:34,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:34,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:34,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:07:34,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:34,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-23 14:07:34,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:34,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:34,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:07:34,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:34,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:34,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:35,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:07:35,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:35,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:35,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:35,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:35,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:07:35,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:35,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:35,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:35,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:35,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:07:35,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:07:35,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:07:35,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:07:36,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:07:36,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:07:36,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:36,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 23 [2022-11-23 14:07:37,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2010 treesize of output 2009 [2022-11-23 14:07:38,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2010 treesize of output 2009 [2022-11-23 14:07:38,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:38,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2019 treesize of output 1990 [2022-11-23 14:07:39,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-23 14:07:39,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:07:39,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:07:39,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:07:39,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-23 14:07:39,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:07:39,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:07:39,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:07:39,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-23 14:07:41,007 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 165 for LOIs [2022-11-23 14:07:41,030 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 770 for LOIs [2022-11-23 14:07:41,654 INFO L197 IcfgInterpreter]: Interpreting procedure zf_readw with input of size 163 for LOIs [2022-11-23 14:07:41,851 INFO L197 IcfgInterpreter]: Interpreting procedure outb with input of size 166 for LOIs [2022-11-23 14:07:41,862 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:07:50,863 WARN L233 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 760 DAG size of output: 664 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:07:59,494 WARN L233 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 770 DAG size of output: 674 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:10,851 WARN L233 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 795 DAG size of output: 699 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:19,625 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1574#(and (= |~#zf_fops~0.offset| 0) (= 0 ~fixed_cdev_used~0) (= |~#shared_workqueue~0.offset| 0) (= |zf_readw___VERIFIER_assert_~x#1.offset| |zf_readw___VERIFIER_assert_#in~x#1.offset|) (= |~#registered_pci_driver~0.offset| 0) (= |zf_readw___VERIFIER_assert_~expression#1| |zf_readw___VERIFIER_assert_#in~expression#1|) (= ~number_request_queue_used~0 0) (= ~zf_action~0 2048) (= |~#timer_registered~0.offset| 0) (= |~#global_tty_driver~0.offset| 0) (= |~#zf_timer~0.base| 31) (= |zf_readw___VERIFIER_assert_#in~x#1.base| 26) (= 43 |~#shared_workqueue~0.base|) (= ~ddv_ioport_request_len~0 0) (= |zf_readw_inw_~port#1| |zf_readw_inw_#in~port#1|) (= |zf_readw___VERIFIER_assert_#in~x#1.offset| 0) (= |~#zf_notifier~0.base| 34) (= ~current_execution_context~0 1) (= ~ddv_ioport_request_start~0 0) (= ~proc_root_driver~0.offset 0) (= ~proc_root_driver~0.base 0) (= |~#registered_pci_driver~0.base| 39) (= |~#zf_is_open~0.offset| 0) (= 42 |~#timer_registered~0.base|) (= 0 |~#fixed_cdev~0.offset|) (= (ite (and (<= (mod ~ddv_ioport_request_start~0 4294967296) (mod |zf_readw_inw_~port#1| 4294967296)) (< (mod |zf_readw_inw_~port#1| 4294967296) (mod (+ ~ddv_ioport_request_len~0 ~ddv_ioport_request_start~0) 4294967296))) 1 0) |zf_readw___VERIFIER_assert_#in~expression#1|) (= ~number_timer_registered~0 0) (<= 2 |zf_readw_~port#1|) (= |~#fixed_request_queue~0.base| 45) (= 28 |~#zf_is_open~0.base|) (= |~#zf_lock~0.base| 29) (= |~#kernel_lock~0.base| 44) (= ~jiffies~0 0) (= |~#registered_irq~0.offset| 0) (= ~number_tasklet_registered~0 0) (= |~#zf_info~0.offset| 0) (= |~#kernel_lock~0.offset| 0) (= |~#tasklet_registered~0.offset| 0) (= ~zf_expect_close~0 0) (= 30 |~#zf_port_lock~0.base|) (= |zf_readw___VERIFIER_assert_#in~x#1.base| |zf_readw___VERIFIER_assert_~x#1.base|) (= |~#zf_info~0.base| 27) (= 32 |~#zf_fops~0.base|) (= |~#fixed_cdev~0.base| 35) (= |~#zf_miscdev~0.offset| 0) (= |~#tasklet_registered~0.base| 41) (= |~#genhd_registered~0.base| 38) (= (select (select |#memory_int| |~#tasklet_registered~0.base|) (+ |~#tasklet_registered~0.offset| 4)) 0) (<= |zf_readw_~port#1| 2) (= 538 |zf_readw_inw_#in~port#1|) (= ~next_heartbeat~0 0) (= 0 |~#cdev_registered~0.offset|) (= |#NULL.offset| 0) (= ~nowayout~0 0) (= |~#zf_miscdev~0.base| 33) (= (select (select |#memory_$Pointer$.offset| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (= |~#global_tty_driver~0.base| 46) (= |~#zf_lock~0.offset| 0) (= |~#zf_port_lock~0.offset| 0) (= |~#fixed_request_queue~0.offset| 0) (= ~number_cdev_registered~0 0) (= |~#registered_irq~0.base| 40) (= |~#genhd_registered~0.offset| 0) (= ~number_fixed_genhd_used~0 0) (= 0 |~#zf_notifier~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (<= 0 |#StackHeapBarrier|) (= |zf_readw_#in~port#1| |zf_readw_~port#1|) (= ~action~0 0) (= 0 |~#zf_timer~0.offset|) (= |~#cdev_registered~0.base| 36) (= ~number_genhd_registered~0 0) (= |~#fixed_gendisk~0.base| 37) (= |~#fixed_gendisk~0.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-23 14:08:19,625 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:08:19,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:08:19,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-23 14:08:19,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175074956] [2022-11-23 14:08:19,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:08:19,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:08:19,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:19,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:08:19,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:08:19,628 INFO L87 Difference]: Start difference. First operand 261 states and 363 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:08:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:21,010 INFO L93 Difference]: Finished difference Result 520 states and 725 transitions. [2022-11-23 14:08:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:21,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 21 [2022-11-23 14:08:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:21,015 INFO L225 Difference]: With dead ends: 520 [2022-11-23 14:08:21,015 INFO L226 Difference]: Without dead ends: 264 [2022-11-23 14:08:21,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:08:21,018 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 212 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:21,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 867 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 14:08:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-11-23 14:08:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-11-23 14:08:21,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 161 states have (on average 1.3354037267080745) internal successors, (215), 168 states have internal predecessors, (215), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:08:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 366 transitions. [2022-11-23 14:08:21,043 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 366 transitions. Word has length 21 [2022-11-23 14:08:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:21,043 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 366 transitions. [2022-11-23 14:08:21,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:08:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 366 transitions. [2022-11-23 14:08:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:08:21,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:21,044 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:21,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:08:21,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:21,252 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:21,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash -476710527, now seen corresponding path program 2 times [2022-11-23 14:08:21,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:21,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731597966] [2022-11-23 14:08:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:21,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:08:21,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:21,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731597966] [2022-11-23 14:08:21,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731597966] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:08:21,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795316023] [2022-11-23 14:08:21,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:08:21,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:08:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:08:21,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:08:21,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:08:22,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 14:08:22,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:08:22,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:08:22,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:08:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:08:22,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:08:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:08:22,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795316023] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:08:22,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1837920217] [2022-11-23 14:08:22,992 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-23 14:08:22,992 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:08:22,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:08:22,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:08:22,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:08:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 554 treesize of output 456 [2022-11-23 14:08:23,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 106 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 168 [2022-11-23 14:08:23,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-23 14:08:23,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 554 treesize of output 456 [2022-11-23 14:08:23,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:23,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 106 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 168 [2022-11-23 14:08:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 253 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 379 [2022-11-23 14:08:24,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:24,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 53 [2022-11-23 14:08:25,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:08:25,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:08:25,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-23 14:08:25,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-23 14:08:25,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:25,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:08:25,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:25,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:25,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:25,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:25,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:25,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-23 14:08:25,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:08:25,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:25,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:25,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:26,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:26,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:08:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:26,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:26,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:26,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:08:26,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:26,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:26,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:26,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:26,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:26,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:26,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:08:27,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:08:27,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:27,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:08:27,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:27,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:27,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:27,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:27,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 231 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 257 [2022-11-23 14:08:27,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:27,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-11-23 14:08:27,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:27,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:27,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:27,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:27,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:27,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:27,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:27,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:08:27,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-11-23 14:08:28,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:28,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:28,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:28,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:28,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-23 14:08:28,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:08:28,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:08:28,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:08:29,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:08:29,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:29,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-23 14:08:29,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:08:30,555 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 14:08:30,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 2000 treesize of output 2005 [2022-11-23 14:08:30,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:08:30,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2005 treesize of output 1976 [2022-11-23 14:08:30,877 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 14:08:30,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1996 treesize of output 2001 [2022-11-23 14:08:33,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:08:33,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:08:33,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-23 14:08:33,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-23 14:08:33,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:08:33,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:08:34,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:08:34,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2022-11-23 14:08:34,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 12 [2022-11-23 14:08:35,171 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 165 for LOIs [2022-11-23 14:08:35,182 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 770 for LOIs [2022-11-23 14:08:35,821 INFO L197 IcfgInterpreter]: Interpreting procedure zf_readw with input of size 163 for LOIs [2022-11-23 14:08:36,086 INFO L197 IcfgInterpreter]: Interpreting procedure outb with input of size 166 for LOIs [2022-11-23 14:08:36,101 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:08:44,891 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 760 DAG size of output: 664 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:08:53,564 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 770 DAG size of output: 674 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:09:05,242 WARN L233 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 795 DAG size of output: 699 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:09:14,072 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2908#(and (= |~#zf_fops~0.offset| 0) (= 0 ~fixed_cdev_used~0) (= |~#shared_workqueue~0.offset| 0) (= |zf_readw___VERIFIER_assert_~x#1.offset| |zf_readw___VERIFIER_assert_#in~x#1.offset|) (= |~#registered_pci_driver~0.offset| 0) (= |zf_readw___VERIFIER_assert_~expression#1| |zf_readw___VERIFIER_assert_#in~expression#1|) (= ~number_request_queue_used~0 0) (= ~zf_action~0 2048) (= |~#timer_registered~0.offset| 0) (= |~#global_tty_driver~0.offset| 0) (= |~#zf_timer~0.base| 31) (= |zf_readw___VERIFIER_assert_#in~x#1.base| 26) (= 43 |~#shared_workqueue~0.base|) (= ~ddv_ioport_request_len~0 0) (= |zf_readw_inw_~port#1| |zf_readw_inw_#in~port#1|) (= |zf_readw___VERIFIER_assert_#in~x#1.offset| 0) (= |~#zf_notifier~0.base| 34) (= ~current_execution_context~0 1) (= ~ddv_ioport_request_start~0 0) (= ~proc_root_driver~0.offset 0) (= ~proc_root_driver~0.base 0) (= |~#registered_pci_driver~0.base| 39) (= |~#zf_is_open~0.offset| 0) (= 42 |~#timer_registered~0.base|) (= 0 |~#fixed_cdev~0.offset|) (= (ite (and (<= (mod ~ddv_ioport_request_start~0 4294967296) (mod |zf_readw_inw_~port#1| 4294967296)) (< (mod |zf_readw_inw_~port#1| 4294967296) (mod (+ ~ddv_ioport_request_len~0 ~ddv_ioport_request_start~0) 4294967296))) 1 0) |zf_readw___VERIFIER_assert_#in~expression#1|) (= ~number_timer_registered~0 0) (<= 2 |zf_readw_~port#1|) (= |~#fixed_request_queue~0.base| 45) (= 28 |~#zf_is_open~0.base|) (= |~#zf_lock~0.base| 29) (= |~#kernel_lock~0.base| 44) (= ~jiffies~0 0) (= |~#registered_irq~0.offset| 0) (= ~number_tasklet_registered~0 0) (= |~#zf_info~0.offset| 0) (= |~#kernel_lock~0.offset| 0) (= |~#tasklet_registered~0.offset| 0) (= ~zf_expect_close~0 0) (= 30 |~#zf_port_lock~0.base|) (= |zf_readw___VERIFIER_assert_#in~x#1.base| |zf_readw___VERIFIER_assert_~x#1.base|) (= |~#zf_info~0.base| 27) (= 32 |~#zf_fops~0.base|) (= |~#fixed_cdev~0.base| 35) (= |~#zf_miscdev~0.offset| 0) (= |~#tasklet_registered~0.base| 41) (= |~#genhd_registered~0.base| 38) (= (select (select |#memory_int| |~#tasklet_registered~0.base|) (+ |~#tasklet_registered~0.offset| 4)) 0) (<= |zf_readw_~port#1| 2) (= 538 |zf_readw_inw_#in~port#1|) (= ~next_heartbeat~0 0) (= 0 |~#cdev_registered~0.offset|) (= |#NULL.offset| 0) (= ~nowayout~0 0) (= |~#zf_miscdev~0.base| 33) (= (select (select |#memory_$Pointer$.offset| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (= |~#global_tty_driver~0.base| 46) (= |~#zf_lock~0.offset| 0) (= |~#zf_port_lock~0.offset| 0) (= |~#fixed_request_queue~0.offset| 0) (= ~number_cdev_registered~0 0) (= |~#registered_irq~0.base| 40) (= |~#genhd_registered~0.offset| 0) (= ~number_fixed_genhd_used~0 0) (= 0 |~#zf_notifier~0.offset|) (= (select (select |#memory_$Pointer$.base| |~#tasklet_registered~0.base|) |~#tasklet_registered~0.offset|) 0) (<= 0 |#StackHeapBarrier|) (= |zf_readw_#in~port#1| |zf_readw_~port#1|) (= ~action~0 0) (= 0 |~#zf_timer~0.offset|) (= |~#cdev_registered~0.base| 36) (= ~number_genhd_registered~0 0) (= |~#fixed_gendisk~0.base| 37) (= |~#fixed_gendisk~0.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-23 14:09:14,072 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:09:14,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:09:14,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-23 14:09:14,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400038635] [2022-11-23 14:09:14,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:09:14,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:09:14,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:14,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:09:14,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:09:14,075 INFO L87 Difference]: Start difference. First operand 264 states and 366 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:09:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:15,688 INFO L93 Difference]: Finished difference Result 526 states and 734 transitions. [2022-11-23 14:09:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:09:15,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2022-11-23 14:09:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:15,693 INFO L225 Difference]: With dead ends: 526 [2022-11-23 14:09:15,693 INFO L226 Difference]: Without dead ends: 270 [2022-11-23 14:09:15,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:09:15,695 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 106 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:15,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 964 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:09:15,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-23 14:09:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2022-11-23 14:09:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 174 states have internal predecessors, (221), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:09:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 372 transitions. [2022-11-23 14:09:15,741 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 372 transitions. Word has length 24 [2022-11-23 14:09:15,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:15,742 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 372 transitions. [2022-11-23 14:09:15,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:09:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 372 transitions. [2022-11-23 14:09:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:09:15,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:15,745 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:15,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:09:15,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 14:09:15,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash 841758433, now seen corresponding path program 3 times [2022-11-23 14:09:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:15,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922828483] [2022-11-23 14:09:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:15,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:09:16,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:09:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:09:16,437 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:09:16,438 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:09:16,439 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:09:16,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:09:16,445 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-23 14:09:16,448 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:09:16,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:09:16 BoogieIcfgContainer [2022-11-23 14:09:16,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:09:16,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:09:16,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:09:16,583 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:09:16,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:25" (3/4) ... [2022-11-23 14:09:16,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:09:16,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:09:16,589 INFO L158 Benchmark]: Toolchain (without parser) took 116879.70ms. Allocated memory was 144.7MB in the beginning and 841.0MB in the end (delta: 696.3MB). Free memory was 100.1MB in the beginning and 502.5MB in the end (delta: -402.4MB). Peak memory consumption was 296.3MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,589 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:09:16,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2100.00ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 99.7MB in the beginning and 94.3MB in the end (delta: 5.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.83ms. Allocated memory is still 188.7MB. Free memory was 94.3MB in the beginning and 84.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,590 INFO L158 Benchmark]: Boogie Preprocessor took 160.49ms. Allocated memory is still 188.7MB. Free memory was 84.9MB in the beginning and 77.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,591 INFO L158 Benchmark]: RCFGBuilder took 2918.21ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 77.5MB in the beginning and 162.1MB in the end (delta: -84.6MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,591 INFO L158 Benchmark]: TraceAbstraction took 111506.16ms. Allocated memory was 226.5MB in the beginning and 841.0MB in the end (delta: 614.5MB). Free memory was 161.0MB in the beginning and 503.5MB in the end (delta: -342.5MB). Peak memory consumption was 270.9MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,591 INFO L158 Benchmark]: Witness Printer took 6.28ms. Allocated memory is still 841.0MB. Free memory was 503.5MB in the beginning and 502.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:09:16,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2100.00ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 99.7MB in the beginning and 94.3MB in the end (delta: 5.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 180.83ms. Allocated memory is still 188.7MB. Free memory was 94.3MB in the beginning and 84.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 160.49ms. Allocated memory is still 188.7MB. Free memory was 84.9MB in the beginning and 77.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2918.21ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 77.5MB in the beginning and 162.1MB in the end (delta: -84.6MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * TraceAbstraction took 111506.16ms. Allocated memory was 226.5MB in the beginning and 841.0MB in the end (delta: 614.5MB). Free memory was 161.0MB in the beginning and 503.5MB in the end (delta: -342.5MB). Peak memory consumption was 270.9MB. Max. memory is 16.1GB. * Witness Printer took 6.28ms. Allocated memory is still 841.0MB. Free memory was 503.5MB in the beginning and 502.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 1484. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2597] struct ddv_pci_driver registered_pci_driver; [L2608] struct registered_irq registered_irq[16]; [L2618] short number_tasklet_registered = 0; [L2625] struct ddv_tasklet tasklet_registered[1]; [L2635] short number_timer_registered = 0; [L2641] struct ddv_timer timer_registered[1]; [L2651] struct work_struct *shared_workqueue[10]; [L2661] spinlock_t kernel_lock; [L3347] request_queue_t fixed_request_queue[10]; [L3349] int number_request_queue_used = 0; [L3433] struct proc_dir_entry *proc_root_driver; [L3743] struct ddv_tty_driver global_tty_driver; [L3922] int ddv_ioport_request_start; [L3923] int ddv_ioport_request_len; [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L1852] CALL call_ddv() [L2725] int err; [L2727] current_execution_context = 1 [L2729] CALL init_kernel() [L2665] int i; VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2667] CALL spin_lock_init(&kernel_lock) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, #in~lock={44:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L4155] lock->init = 1 [L4156] lock->locked = 0 [L2667] RET spin_lock_init(&kernel_lock) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i = 0 VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=2, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=3, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=4, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=5, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=6, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=7, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=8, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=9, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=10, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND FALSE !(i < 10) [L2673] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 0 [L2673] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2673] COND FALSE !(i < 1) [L2729] RET init_kernel() [L2731] CALL (* _ddv_module_init)() [L1776] int ret; VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1778] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, #in~fmt={20:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L4482] return 0; [L1778] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n")=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1780] CALL zf_readw(0x02) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1469] FCALL outb(port, 0x218) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, port=2, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, unknown-#in~port-unknown=2, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1470] CALL inw(0x21A) [L3963] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") [L12] COND TRUE !expression VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, #in~x={26:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, unknown-#in~expression-unknown=0, x={26:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L12] reach_error() VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, #in~x={26:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, unknown-#in~expression-unknown=0, x={26:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 269 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 111.3s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 376 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 2460 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1527 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 533 IncrementalHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 933 mSDtfsCounter, 533 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 94 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 75.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1699 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 6/39 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:09:16,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- 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 14:09:18,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:09:18,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:09:19,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:09:19,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:09:19,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:09:19,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:09:19,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:09:19,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:09:19,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:09:19,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:09:19,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:09:19,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:09:19,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:09:19,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:09:19,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:09:19,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:09:19,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:09:19,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:09:19,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:09:19,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:09:19,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:09:19,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:09:19,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:09:19,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:09:19,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:09:19,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:09:19,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:09:19,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:09:19,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:09:19,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:09:19,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:09:19,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:09:19,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:09:19,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:09:19,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:09:19,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:09:19,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:09:19,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:09:19,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:09:19,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:09:19,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 14:09:19,160 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:09:19,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:09:19,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:09:19,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:09:19,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:09:19,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:09:19,164 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:09:19,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:09:19,164 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:09:19,165 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:09:19,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:09:19,166 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:09:19,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:09:19,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:09:19,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:09:19,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:09:19,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:09:19,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:09:19,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:09:19,168 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:09:19,168 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:09:19,169 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:09:19,169 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:09:19,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:09:19,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:09:19,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:09:19,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:09:19,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:09:19,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:09:19,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:09:19,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:09:19,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:09:19,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:09:19,171 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:09:19,172 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:09:19,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:09:19,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:09:19,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:09:19,172 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2022-11-23 14:09:19,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:09:19,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:09:19,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:09:19,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:09:19,613 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:09:19,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2022-11-23 14:09:22,714 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:09:23,254 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:09:23,257 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2022-11-23 14:09:23,292 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data/055258c20/9b3652d9709d4899be4d139e36ee7934/FLAGfe4d03560 [2022-11-23 14:09:23,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/data/055258c20/9b3652d9709d4899be4d139e36ee7934 [2022-11-23 14:09:23,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:09:23,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:09:23,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:09:23,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:09:23,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:09:23,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:23" (1/1) ... [2022-11-23 14:09:23,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482066fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:23, skipping insertion in model container [2022-11-23 14:09:23,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:23" (1/1) ... [2022-11-23 14:09:23,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:09:23,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:09:23,624 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2022-11-23 14:09:25,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:09:25,222 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 14:09:25,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:09:25,249 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2022-11-23 14:09:25,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:09:25,480 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:09:25,491 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_a860d68e-389d-404e-b0dc-7c9e0c1aec70/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2022-11-23 14:09:25,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:09:25,896 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:09:25,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25 WrapperNode [2022-11-23 14:09:25,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:09:25,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:09:25,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:09:25,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:09:25,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:25,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,077 INFO L138 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 975 [2022-11-23 14:09:26,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:09:26,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:09:26,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:09:26,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:09:26,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:09:26,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:09:26,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:09:26,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:09:26,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (1/1) ... [2022-11-23 14:09:26,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:09:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:09:26,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:09:26,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:09:26,258 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-11-23 14:09:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-11-23 14:09:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-11-23 14:09:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-11-23 14:09:26,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 14:09:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-11-23 14:09:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:09:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:09:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:09:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-23 14:09:26,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:09:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-23 14:09:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:09:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:09:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 14:09:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-11-23 14:09:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-11-23 14:09:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-11-23 14:09:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-23 14:09:26,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-23 14:09:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:09:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-11-23 14:09:26,264 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-11-23 14:09:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:09:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:09:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:09:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:09:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-11-23 14:09:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-11-23 14:09:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-11-23 14:09:26,266 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-11-23 14:09:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:09:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:09:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-11-23 14:09:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-11-23 14:09:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-23 14:09:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:09:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-23 14:09:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:09:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:09:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:09:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 14:09:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 14:09:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:09:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:09:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 14:09:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 14:09:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-23 14:09:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-11-23 14:09:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-11-23 14:09:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-23 14:09:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-23 14:09:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:09:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:09:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-11-23 14:09:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-11-23 14:09:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-23 14:09:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-23 14:09:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-23 14:09:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-23 14:09:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-23 14:09:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-23 14:09:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-11-23 14:09:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-11-23 14:09:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-11-23 14:09:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-11-23 14:09:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-23 14:09:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-23 14:09:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-11-23 14:09:26,311 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-11-23 14:09:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-23 14:09:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-11-23 14:09:26,312 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-11-23 14:09:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:09:26,313 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:09:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-11-23 14:09:26,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-11-23 14:09:26,740 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:09:26,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:09:31,687 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:09:31,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:09:31,697 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 14:09:31,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:31 BoogieIcfgContainer [2022-11-23 14:09:31,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:09:31,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:09:31,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:09:31,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:09:31,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:09:23" (1/3) ... [2022-11-23 14:09:31,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df60e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:09:31, skipping insertion in model container [2022-11-23 14:09:31,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:25" (2/3) ... [2022-11-23 14:09:31,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df60e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:09:31, skipping insertion in model container [2022-11-23 14:09:31,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:31" (3/3) ... [2022-11-23 14:09:31,710 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2022-11-23 14:09:31,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:09:31,736 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:09:31,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:09:31,801 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;@529913ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:09:31,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:09:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 245 states have (on average 1.3591836734693878) internal successors, (333), 252 states have internal predecessors, (333), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-11-23 14:09:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 14:09:31,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:31,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:31,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:31,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1001062355, now seen corresponding path program 1 times [2022-11-23 14:09:31,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:09:31,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919674970] [2022-11-23 14:09:31,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:31,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:09:31,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:09:31,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:09:31,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:09:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:32,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:09:32,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:32,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:09:32,482 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:09:32,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919674970] [2022-11-23 14:09:32,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919674970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:32,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:32,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:09:32,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836805650] [2022-11-23 14:09:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:32,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:09:32,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:09:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:09:32,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:09:32,521 INFO L87 Difference]: Start difference. First operand has 351 states, 245 states have (on average 1.3591836734693878) internal successors, (333), 252 states have internal predecessors, (333), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:09:32,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:32,684 INFO L93 Difference]: Finished difference Result 700 states and 1000 transitions. [2022-11-23 14:09:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:09:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-11-23 14:09:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:32,704 INFO L225 Difference]: With dead ends: 700 [2022-11-23 14:09:32,710 INFO L226 Difference]: Without dead ends: 345 [2022-11-23 14:09:32,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:09:32,725 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 2 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:32,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 953 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:09:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-11-23 14:09:32,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2022-11-23 14:09:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 240 states have (on average 1.3375) internal successors, (321), 247 states have internal predecessors, (321), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:09:32,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 472 transitions. [2022-11-23 14:09:32,824 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 472 transitions. Word has length 26 [2022-11-23 14:09:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:32,826 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 472 transitions. [2022-11-23 14:09:32,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 14:09:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 472 transitions. [2022-11-23 14:09:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:09:32,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:32,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:32,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:09:33,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:09:33,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:33,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:33,045 INFO L85 PathProgramCache]: Analyzing trace with hash 88278697, now seen corresponding path program 1 times [2022-11-23 14:09:33,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:09:33,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597239755] [2022-11-23 14:09:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:33,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:09:33,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:09:33,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:09:33,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:09:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:33,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:09:33,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:33,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:09:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:33,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:09:33,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597239755] [2022-11-23 14:09:33,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597239755] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:09:33,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [841114587] [2022-11-23 14:09:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:33,676 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:09:33,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:09:33,700 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:09:33,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 14:09:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:34,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:09:34,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:34,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:09:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:34,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [841114587] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:09:34,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381987210] [2022-11-23 14:09:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:34,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:09:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:09:34,658 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:09:34,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:09:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:35,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:09:35,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:35,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:09:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:35,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381987210] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:09:35,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:09:35,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-11-23 14:09:35,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596833553] [2022-11-23 14:09:35,170 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:09:35,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:09:35,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:09:35,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:09:35,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:09:35,174 INFO L87 Difference]: Start difference. First operand 343 states and 472 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:09:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:35,500 INFO L93 Difference]: Finished difference Result 685 states and 944 transitions. [2022-11-23 14:09:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:09:35,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2022-11-23 14:09:35,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:35,504 INFO L225 Difference]: With dead ends: 685 [2022-11-23 14:09:35,504 INFO L226 Difference]: Without dead ends: 349 [2022-11-23 14:09:35,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:35,507 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 172 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:35,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1433 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:09:35,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-23 14:09:35,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2022-11-23 14:09:35,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 246 states have (on average 1.3252032520325203) internal successors, (326), 253 states have internal predecessors, (326), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:09:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 477 transitions. [2022-11-23 14:09:35,532 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 477 transitions. Word has length 30 [2022-11-23 14:09:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:35,533 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 477 transitions. [2022-11-23 14:09:35,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:09:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 477 transitions. [2022-11-23 14:09:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 14:09:35,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:35,534 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:09:35,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:09:35,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:09:35,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-23 14:09:36,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 14:09:36,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:36,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:36,152 INFO L85 PathProgramCache]: Analyzing trace with hash 3927171, now seen corresponding path program 2 times [2022-11-23 14:09:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:09:36,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888501298] [2022-11-23 14:09:36,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:09:36,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:09:36,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:09:36,155 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:09:36,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:09:36,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:09:36,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:09:36,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:09:36,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:36,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:09:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:37,119 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:09:37,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888501298] [2022-11-23 14:09:37,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888501298] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:09:37,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [618047739] [2022-11-23 14:09:37,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:09:37,120 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:09:37,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:09:37,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:09:37,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-23 14:09:38,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:09:38,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:09:38,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:09:38,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:38,759 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:38,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:09:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:09:38,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [618047739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:09:38,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888230942] [2022-11-23 14:09:38,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:09:38,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:09:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:09:38,808 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:09:38,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:10:07,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:10:07,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:10:07,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:10:07,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:10:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:10:07,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:10:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:10:07,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888230942] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:10:07,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:10:07,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-11-23 14:10:07,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017170073] [2022-11-23 14:10:07,619 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:10:07,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:10:07,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:10:07,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:10:07,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:10:07,622 INFO L87 Difference]: Start difference. First operand 349 states and 477 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:10:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:08,390 INFO L93 Difference]: Finished difference Result 697 states and 957 transitions. [2022-11-23 14:10:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:10:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-11-23 14:10:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:08,394 INFO L225 Difference]: With dead ends: 697 [2022-11-23 14:10:08,394 INFO L226 Difference]: Without dead ends: 361 [2022-11-23 14:10:08,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:10:08,396 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 342 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:08,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 2461 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:10:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-23 14:10:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-11-23 14:10:08,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 258 states have (on average 1.310077519379845) internal successors, (338), 265 states have internal predecessors, (338), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-23 14:10:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 489 transitions. [2022-11-23 14:10:08,422 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 489 transitions. Word has length 36 [2022-11-23 14:10:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:08,423 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 489 transitions. [2022-11-23 14:10:08,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:10:08,423 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 489 transitions. [2022-11-23 14:10:08,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 14:10:08,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:08,424 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:08,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:08,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:08,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-11-23 14:10:09,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 14:10:09,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:09,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2007004599, now seen corresponding path program 3 times [2022-11-23 14:10:09,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:10:09,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128012049] [2022-11-23 14:10:09,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:10:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:10:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:10:09,042 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:10:09,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-23 14:10:10,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 14:10:10,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-23 14:10:10,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:10:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:10:11,214 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:10:11,214 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:10:11,215 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:10:11,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-23 14:10:11,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:10:11,440 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-23 14:10:11,444 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:10:11,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:10:11 BoogieIcfgContainer [2022-11-23 14:10:11,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:10:11,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:10:11,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:10:11,630 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:10:11,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:31" (3/4) ... [2022-11-23 14:10:11,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:10:11,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:10:11,635 INFO L158 Benchmark]: Toolchain (without parser) took 48309.41ms. Allocated memory was 98.6MB in the beginning and 211.8MB in the end (delta: 113.2MB). Free memory was 71.7MB in the beginning and 71.8MB in the end (delta: -160.2kB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2022-11-23 14:10:11,635 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:10:11,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2570.82ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 71.4MB in the beginning and 73.7MB in the end (delta: -2.3MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-23 14:10:11,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 179.21ms. Allocated memory is still 121.6MB. Free memory was 73.7MB in the beginning and 65.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 14:10:11,636 INFO L158 Benchmark]: Boogie Preprocessor took 82.25ms. Allocated memory is still 121.6MB. Free memory was 65.3MB in the beginning and 56.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:10:11,637 INFO L158 Benchmark]: RCFGBuilder took 5540.00ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 56.2MB in the beginning and 96.7MB in the end (delta: -40.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-23 14:10:11,637 INFO L158 Benchmark]: TraceAbstraction took 39926.44ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 96.7MB in the beginning and 71.8MB in the end (delta: 24.8MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2022-11-23 14:10:11,638 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 211.8MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:10:11,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2570.82ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 71.4MB in the beginning and 73.7MB in the end (delta: -2.3MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 179.21ms. Allocated memory is still 121.6MB. Free memory was 73.7MB in the beginning and 65.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.25ms. Allocated memory is still 121.6MB. Free memory was 65.3MB in the beginning and 56.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 5540.00ms. Allocated memory was 121.6MB in the beginning and 176.2MB in the end (delta: 54.5MB). Free memory was 56.2MB in the beginning and 96.7MB in the end (delta: -40.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39926.44ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 96.7MB in the beginning and 71.8MB in the end (delta: 24.8MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 211.8MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 1474. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2597] struct ddv_pci_driver registered_pci_driver; [L2608] struct registered_irq registered_irq[16]; [L2618] short number_tasklet_registered = 0; [L2625] struct ddv_tasklet tasklet_registered[1]; [L2635] short number_timer_registered = 0; [L2641] struct ddv_timer timer_registered[1]; [L2651] struct work_struct *shared_workqueue[10]; [L2661] spinlock_t kernel_lock; [L3347] request_queue_t fixed_request_queue[10]; [L3349] int number_request_queue_used = 0; [L3433] struct proc_dir_entry *proc_root_driver; [L3743] struct ddv_tty_driver global_tty_driver; [L3922] int ddv_ioport_request_start; [L3923] int ddv_ioport_request_len; VAL [={-1:7}, ={0:0}, ={-1:8}, ={0:0}, action=0, cdev_registered={36:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L1852] CALL call_ddv() [L2725] int err; [L2727] current_execution_context = 1 [L2729] CALL init_kernel() [L2665] int i; VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2667] CALL spin_lock_init(&kernel_lock) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, #in~lock={44:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L4155] lock->init = 1 [L4156] lock->locked = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, #in~lock={44:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2667] RET spin_lock_init(&kernel_lock) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=2, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=2, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=3, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=3, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=4, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=4, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=5, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=5, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=6, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=6, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=7, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=7, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=8, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=8, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=9, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=9, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=10, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2669] COND FALSE !(i < 10) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=10, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2673] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=0, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2673] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2673] COND FALSE !(i < 1) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, i=1, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L2729] RET init_kernel() [L2731] CALL (* _ddv_module_init)() [L1776] int ret; VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1778] CALL printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, #in~fmt={20:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L4482] return 0; VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, #in~fmt={20:0}, \result=0, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, fmt={20:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1778] RET printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n") VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, printk("<6>" "machzwd" ": MachZ ZF-Logic Watchdog driver initializing.\n")=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1780] CALL zf_readw(0x02) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1469] FCALL outb(port, 0x218) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, port=2, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, unknown-#in~port-unknown=2, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L1470] CALL inw(0x21A) [L3963] CALL __VERIFIER_assert(port >= ddv_ioport_request_start && port < ddv_ioport_request_start + ddv_ioport_request_len, "I/O port is requested") [L12] COND TRUE !expression VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, #in~x={26:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, unknown-#in~expression-unknown=0, x={26:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] [L12] reach_error() VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, #in~x={26:0}, action=0, cdev_registered={36:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, expression=0, fixed_cdev={35:0}, fixed_cdev_used=0, fixed_gendisk={37:0}, fixed_request_queue={45:0}, genhd_registered={38:0}, global_tty_driver={46:0}, jiffies=0, kernel_lock={44:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={40:0}, registered_pci_driver={39:0}, shared_workqueue={43:0}, tasklet_registered={41:0}, timer_registered={42:0}, unknown-#in~expression-unknown=0, x={26:0}, zf_action=2048, zf_expect_close=0, zf_fops={32:0}, zf_info={27:0}, zf_is_open={28:0}, zf_lock={29:0}, zf_miscdev={33:0}, zf_notifier={34:0}, zf_port_lock={30:0}, zf_timer={31:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 355 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.7s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 574 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 4847 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3438 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1409 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 32.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 409 ConstructedInterpolants, 0 QuantifiedInterpolants, 615 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4087 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 12/114 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:10:11,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a860d68e-389d-404e-b0dc-7c9e0c1aec70/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample