./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- 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-b5237d8 [2022-11-22 01:16:30,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:16:30,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:16:30,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:16:30,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:16:30,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:16:30,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:16:30,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:16:30,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:16:30,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:16:30,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:16:30,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:16:30,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:16:30,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:16:30,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:16:30,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:16:30,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:16:30,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:16:30,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:16:30,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:16:30,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:16:30,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:16:30,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:16:30,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:16:30,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:16:30,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:16:30,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:16:30,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:16:30,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:16:30,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:16:30,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:16:30,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:16:30,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:16:30,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:16:30,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:16:30,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:16:30,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:16:30,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:16:30,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:16:30,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:16:30,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:16:30,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:16:30,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:16:30,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:16:30,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:16:30,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:16:30,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:16:30,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:16:30,323 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:16:30,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:16:30,324 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:16:30,324 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:16:30,325 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:16:30,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:16:30,326 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:16:30,326 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:16:30,326 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:16:30,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:16:30,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:16:30,327 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:16:30,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:16:30,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:16:30,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:16:30,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:16:30,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:16:30,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:16:30,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:16:30,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:16:30,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:16:30,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:16:30,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:16:30,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:16:30,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:16:30,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:16:30,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:16:30,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:16:30,332 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:16:30,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:16:30,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:16:30,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:16:30,333 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_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2022-11-22 01:16:30,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:16:30,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:16:30,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:16:30,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:16:30,776 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:16:30,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-11-22 01:16:34,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:16:34,998 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:16:34,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-11-22 01:16:35,059 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/data/de8ed65e6/450f82ffce194ab1bb40a8cf5cd13ff7/FLAGd711f1a8c [2022-11-22 01:16:35,083 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/data/de8ed65e6/450f82ffce194ab1bb40a8cf5cd13ff7 [2022-11-22 01:16:35,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:16:35,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:16:35,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:16:35,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:16:35,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:16:35,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:16:35" (1/1) ... [2022-11-22 01:16:35,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241b02ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:35, skipping insertion in model container [2022-11-22 01:16:35,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:16:35" (1/1) ... [2022-11-22 01:16:35,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:16:35,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:16:38,082 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_1f360ae3-6061-46ef-8d3a-374cdf140652/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2022-11-22 01:16:38,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:16:38,243 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:16:38,973 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_1f360ae3-6061-46ef-8d3a-374cdf140652/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2022-11-22 01:16:38,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:16:39,147 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:16:39,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39 WrapperNode [2022-11-22 01:16:39,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:16:39,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:16:39,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:16:39,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:16:39,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,556 INFO L138 Inliner]: procedures = 309, calls = 2522, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 4041 [2022-11-22 01:16:39,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:16:39,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:16:39,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:16:39,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:16:39,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:16:39,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:16:39,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:16:39,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:16:39,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (1/1) ... [2022-11-22 01:16:39,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:16:39,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:16:39,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:16:39,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:16:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:16:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:16:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-22 01:16:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-22 01:16:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2022-11-22 01:16:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2022-11-22 01:16:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2022-11-22 01:16:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2022-11-22 01:16:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-22 01:16:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-22 01:16:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:16:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:16:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2022-11-22 01:16:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2022-11-22 01:16:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2022-11-22 01:16:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2022-11-22 01:16:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:16:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:16:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2022-11-22 01:16:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2022-11-22 01:16:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-22 01:16:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-22 01:16:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2022-11-22 01:16:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2022-11-22 01:16:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2022-11-22 01:16:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2022-11-22 01:16:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-11-22 01:16:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-11-22 01:16:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:16:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:16:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2022-11-22 01:16:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2022-11-22 01:16:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-22 01:16:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-22 01:16:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-22 01:16:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-22 01:16:39,989 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:16:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:16:39,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:16:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:16:39,990 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2022-11-22 01:16:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2022-11-22 01:16:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-22 01:16:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-22 01:16:39,991 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:16:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:16:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2022-11-22 01:16:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2022-11-22 01:16:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2022-11-22 01:16:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2022-11-22 01:16:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:16:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:16:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2022-11-22 01:16:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2022-11-22 01:16:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:16:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:16:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:16:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2022-11-22 01:16:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2022-11-22 01:16:39,994 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2022-11-22 01:16:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2022-11-22 01:16:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2022-11-22 01:16:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2022-11-22 01:16:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2022-11-22 01:16:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2022-11-22 01:16:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2022-11-22 01:16:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2022-11-22 01:16:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:16:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-22 01:16:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-22 01:16:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2022-11-22 01:16:39,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2022-11-22 01:16:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2022-11-22 01:16:39,997 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2022-11-22 01:16:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2022-11-22 01:16:39,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2022-11-22 01:16:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-22 01:16:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-22 01:16:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-22 01:16:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-22 01:16:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:16:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-11-22 01:16:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-11-22 01:16:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:16:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:16:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:16:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-22 01:16:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-22 01:16:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-22 01:16:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-22 01:16:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-22 01:16:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-22 01:16:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:16:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:16:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:16:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:16:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:16:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:16:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:16:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:16:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:16:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:16:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2022-11-22 01:16:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2022-11-22 01:16:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2022-11-22 01:16:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2022-11-22 01:16:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2022-11-22 01:16:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2022-11-22 01:16:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:16:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:16:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:16:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:16:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:16:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-22 01:16:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-22 01:16:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2022-11-22 01:16:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2022-11-22 01:16:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:16:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:16:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:16:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2022-11-22 01:16:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2022-11-22 01:16:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:16:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-22 01:16:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-22 01:16:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:16:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:16:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-11-22 01:16:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-11-22 01:16:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:16:40,021 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:16:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2022-11-22 01:16:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2022-11-22 01:16:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:16:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:16:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-22 01:16:40,022 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-22 01:16:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:16:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:16:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-22 01:16:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-22 01:16:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:16:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2022-11-22 01:16:40,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2022-11-22 01:16:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:16:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-22 01:16:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-22 01:16:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2022-11-22 01:16:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2022-11-22 01:16:40,024 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2022-11-22 01:16:40,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2022-11-22 01:16:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2022-11-22 01:16:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2022-11-22 01:16:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 01:16:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 01:16:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2022-11-22 01:16:40,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2022-11-22 01:16:40,025 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-22 01:16:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-22 01:16:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2022-11-22 01:16:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2022-11-22 01:16:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:16:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:16:40,026 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:16:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:16:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2022-11-22 01:16:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2022-11-22 01:16:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2022-11-22 01:16:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2022-11-22 01:16:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:16:40,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:16:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:16:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:16:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:16:40,885 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:16:40,892 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:16:41,135 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:41,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-11-22 01:16:41,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-11-22 01:16:43,249 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:43,257 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:43,259 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:43,261 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:43,268 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:43,270 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:43,278 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-22 01:16:45,790 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume !false; [2022-11-22 01:16:45,791 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume false; [2022-11-22 01:16:45,791 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2022-11-22 01:16:45,791 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2022-11-22 01:16:45,791 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2022-11-22 01:16:45,791 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2022-11-22 01:16:45,792 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !false; [2022-11-22 01:16:45,792 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume false; [2022-11-22 01:16:45,792 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2022-11-22 01:16:45,792 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2022-11-22 01:16:45,792 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2022-11-22 01:16:45,793 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2022-11-22 01:16:45,793 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2022-11-22 01:16:45,793 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2022-11-22 01:16:45,895 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:16:46,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:16:46,918 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:16:46,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:16:46 BoogieIcfgContainer [2022-11-22 01:16:46,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:16:46,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:16:46,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:16:46,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:16:46,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:16:35" (1/3) ... [2022-11-22 01:16:46,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab54e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:16:46, skipping insertion in model container [2022-11-22 01:16:46,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:16:39" (2/3) ... [2022-11-22 01:16:46,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab54e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:16:46, skipping insertion in model container [2022-11-22 01:16:46,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:16:46" (3/3) ... [2022-11-22 01:16:46,939 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-11-22 01:16:46,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:16:46,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:16:47,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:16:47,075 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;@581f8ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:16:47,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:16:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 942 states, 604 states have (on average 1.3609271523178808) internal successors, (822), 624 states have internal predecessors, (822), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2022-11-22 01:16:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:16:47,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:47,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:47,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:16:47,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:47,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2076576027, now seen corresponding path program 1 times [2022-11-22 01:16:47,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:47,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200021507] [2022-11-22 01:16:47,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:47,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:16:47,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:47,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200021507] [2022-11-22 01:16:47,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200021507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:47,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:47,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:16:47,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797694930] [2022-11-22 01:16:47,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:47,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:16:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:47,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:16:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:47,999 INFO L87 Difference]: Start difference. First operand has 942 states, 604 states have (on average 1.3609271523178808) internal successors, (822), 624 states have internal predecessors, (822), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:16:49,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:49,637 INFO L93 Difference]: Finished difference Result 2745 states and 3900 transitions. [2022-11-22 01:16:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:16:49,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-22 01:16:49,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:49,718 INFO L225 Difference]: With dead ends: 2745 [2022-11-22 01:16:49,718 INFO L226 Difference]: Without dead ends: 1810 [2022-11-22 01:16:49,736 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 [2022-11-22 01:16:49,742 INFO L413 NwaCegarLoop]: 1402 mSDtfsCounter, 1290 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:49,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2530 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 01:16:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-11-22 01:16:49,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1807. [2022-11-22 01:16:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1163 states have (on average 1.3508168529664661) internal successors, (1571), 1196 states have internal predecessors, (1571), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-11-22 01:16:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2548 transitions. [2022-11-22 01:16:50,032 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2548 transitions. Word has length 18 [2022-11-22 01:16:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:50,033 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2548 transitions. [2022-11-22 01:16:50,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:16:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2548 transitions. [2022-11-22 01:16:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:16:50,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:50,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:50,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:16:50,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:16:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1985318854, now seen corresponding path program 1 times [2022-11-22 01:16:50,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:50,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396920607] [2022-11-22 01:16:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:50,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:16:50,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:50,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396920607] [2022-11-22 01:16:50,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396920607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:50,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:50,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:16:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119047535] [2022-11-22 01:16:50,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:50,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:16:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:50,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:16:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:16:50,804 INFO L87 Difference]: Start difference. First operand 1807 states and 2548 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 01:16:52,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:52,899 INFO L93 Difference]: Finished difference Result 3580 states and 5047 transitions. [2022-11-22 01:16:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:16:52,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2022-11-22 01:16:52,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:52,912 INFO L225 Difference]: With dead ends: 3580 [2022-11-22 01:16:52,912 INFO L226 Difference]: Without dead ends: 1807 [2022-11-22 01:16:52,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:52,919 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 1 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:52,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3468 Invalid, 494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:16:52,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2022-11-22 01:16:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1807. [2022-11-22 01:16:53,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1163 states have (on average 1.349957007738607) internal successors, (1570), 1196 states have internal predecessors, (1570), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-11-22 01:16:53,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2547 transitions. [2022-11-22 01:16:53,016 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2547 transitions. Word has length 107 [2022-11-22 01:16:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:53,017 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2547 transitions. [2022-11-22 01:16:53,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 01:16:53,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2547 transitions. [2022-11-22 01:16:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 01:16:53,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:53,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:53,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:16:53,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:16:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:53,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1766667309, now seen corresponding path program 1 times [2022-11-22 01:16:53,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:53,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955793023] [2022-11-22 01:16:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:16:53,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:53,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955793023] [2022-11-22 01:16:53,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955793023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:53,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:53,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:16:53,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241337428] [2022-11-22 01:16:53,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:53,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:16:53,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:53,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:16:53,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:53,584 INFO L87 Difference]: Start difference. First operand 1807 states and 2547 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:16:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:54,972 INFO L93 Difference]: Finished difference Result 3656 states and 5170 transitions. [2022-11-22 01:16:54,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:16:54,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 112 [2022-11-22 01:16:54,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:54,987 INFO L225 Difference]: With dead ends: 3656 [2022-11-22 01:16:54,987 INFO L226 Difference]: Without dead ends: 1885 [2022-11-22 01:16:54,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:16:54,996 INFO L413 NwaCegarLoop]: 1182 mSDtfsCounter, 30 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:54,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2341 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:16:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2022-11-22 01:16:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1815. [2022-11-22 01:16:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1171 states have (on average 1.3509820666097352) internal successors, (1582), 1204 states have internal predecessors, (1582), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-11-22 01:16:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2559 transitions. [2022-11-22 01:16:55,099 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2559 transitions. Word has length 112 [2022-11-22 01:16:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:55,100 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2559 transitions. [2022-11-22 01:16:55,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:16:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2559 transitions. [2022-11-22 01:16:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:16:55,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:55,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:55,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:16:55,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:16:55,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:55,106 INFO L85 PathProgramCache]: Analyzing trace with hash -946967980, now seen corresponding path program 1 times [2022-11-22 01:16:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:55,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046680769] [2022-11-22 01:16:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:16:56,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:56,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046680769] [2022-11-22 01:16:56,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046680769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:56,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:56,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:16:56,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925507251] [2022-11-22 01:16:56,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:56,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:16:56,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:56,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:16:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:16:56,040 INFO L87 Difference]: Start difference. First operand 1815 states and 2559 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-22 01:16:58,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:16:58,472 INFO L93 Difference]: Finished difference Result 3598 states and 5073 transitions. [2022-11-22 01:16:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:16:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 115 [2022-11-22 01:16:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:16:58,484 INFO L225 Difference]: With dead ends: 3598 [2022-11-22 01:16:58,485 INFO L226 Difference]: Without dead ends: 1815 [2022-11-22 01:16:58,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:16:58,498 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 3 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:16:58,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4617 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 01:16:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-11-22 01:16:58,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2022-11-22 01:16:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1171 states have (on average 1.3501280956447481) internal successors, (1581), 1203 states have internal predecessors, (1581), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-11-22 01:16:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2558 transitions. [2022-11-22 01:16:58,714 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2558 transitions. Word has length 115 [2022-11-22 01:16:58,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:16:58,714 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2558 transitions. [2022-11-22 01:16:58,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-22 01:16:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2558 transitions. [2022-11-22 01:16:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 01:16:58,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:16:58,719 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:16:58,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:16:58,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:16:58,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:16:58,721 INFO L85 PathProgramCache]: Analyzing trace with hash -301106840, now seen corresponding path program 1 times [2022-11-22 01:16:58,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:16:58,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168796856] [2022-11-22 01:16:58,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:16:58,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:16:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:16:59,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:16:59,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:16:59,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168796856] [2022-11-22 01:16:59,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168796856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:16:59,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:16:59,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:16:59,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685229505] [2022-11-22 01:16:59,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:16:59,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:16:59,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:16:59,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:16:59,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:16:59,434 INFO L87 Difference]: Start difference. First operand 1815 states and 2558 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:17:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:02,338 INFO L93 Difference]: Finished difference Result 3624 states and 5107 transitions. [2022-11-22 01:17:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:17:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 138 [2022-11-22 01:17:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:02,351 INFO L225 Difference]: With dead ends: 3624 [2022-11-22 01:17:02,351 INFO L226 Difference]: Without dead ends: 1815 [2022-11-22 01:17:02,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:17:02,362 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 7 mSDsluCounter, 4609 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5763 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:02,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5763 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-22 01:17:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-11-22 01:17:02,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2022-11-22 01:17:02,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1171 states have (on average 1.3492741246797608) internal successors, (1580), 1203 states have internal predecessors, (1580), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-11-22 01:17:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2557 transitions. [2022-11-22 01:17:02,518 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2557 transitions. Word has length 138 [2022-11-22 01:17:02,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:02,519 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2557 transitions. [2022-11-22 01:17:02,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:17:02,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2557 transitions. [2022-11-22 01:17:02,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-22 01:17:02,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:02,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:02,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:17:02,525 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:17:02,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:02,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2071242775, now seen corresponding path program 1 times [2022-11-22 01:17:02,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:02,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563125978] [2022-11-22 01:17:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:02,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:17:03,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:03,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563125978] [2022-11-22 01:17:03,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563125978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:03,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:03,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:17:03,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478931049] [2022-11-22 01:17:03,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:03,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:17:03,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:03,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:17:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:17:03,083 INFO L87 Difference]: Start difference. First operand 1815 states and 2557 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:17:06,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:06,186 INFO L93 Difference]: Finished difference Result 6084 states and 9105 transitions. [2022-11-22 01:17:06,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:17:06,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 140 [2022-11-22 01:17:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:06,214 INFO L225 Difference]: With dead ends: 6084 [2022-11-22 01:17:06,214 INFO L226 Difference]: Without dead ends: 4298 [2022-11-22 01:17:06,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:06,224 INFO L413 NwaCegarLoop]: 2527 mSDtfsCounter, 1311 mSDsluCounter, 3799 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 6326 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:06,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 6326 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-22 01:17:06,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2022-11-22 01:17:06,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 1817. [2022-11-22 01:17:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1173 states have (on average 1.3486786018755328) internal successors, (1582), 1205 states have internal predecessors, (1582), 488 states have call successors, (488), 156 states have call predecessors, (488), 155 states have return successors, (489), 480 states have call predecessors, (489), 486 states have call successors, (489) [2022-11-22 01:17:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2559 transitions. [2022-11-22 01:17:06,395 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2559 transitions. Word has length 140 [2022-11-22 01:17:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:06,396 INFO L495 AbstractCegarLoop]: Abstraction has 1817 states and 2559 transitions. [2022-11-22 01:17:06,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:17:06,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2559 transitions. [2022-11-22 01:17:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-22 01:17:06,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:06,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:17:06,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:17:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash -731891532, now seen corresponding path program 1 times [2022-11-22 01:17:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:06,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366378766] [2022-11-22 01:17:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:17:07,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:07,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366378766] [2022-11-22 01:17:07,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366378766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:07,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779481346] [2022-11-22 01:17:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:07,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:07,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:07,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:07,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:17:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:08,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 3240 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 01:17:08,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:17:09,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:17:09,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779481346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:09,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:17:09,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-22 01:17:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988102222] [2022-11-22 01:17:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:09,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:17:09,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:09,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:17:09,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:17:09,043 INFO L87 Difference]: Start difference. First operand 1817 states and 2559 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 01:17:12,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:12,052 INFO L93 Difference]: Finished difference Result 3626 states and 5107 transitions. [2022-11-22 01:17:12,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:17:12,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 143 [2022-11-22 01:17:12,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:12,067 INFO L225 Difference]: With dead ends: 3626 [2022-11-22 01:17:12,067 INFO L226 Difference]: Without dead ends: 1799 [2022-11-22 01:17:12,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:17:12,077 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 15 mSDsluCounter, 5748 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6901 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:12,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6901 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-22 01:17:12,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2022-11-22 01:17:12,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2022-11-22 01:17:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1164 states have (on average 1.347938144329897) internal successors, (1569), 1195 states have internal predecessors, (1569), 482 states have call successors, (482), 153 states have call predecessors, (482), 152 states have return successors, (483), 474 states have call predecessors, (483), 480 states have call successors, (483) [2022-11-22 01:17:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2534 transitions. [2022-11-22 01:17:12,212 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2534 transitions. Word has length 143 [2022-11-22 01:17:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:12,213 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2534 transitions. [2022-11-22 01:17:12,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-22 01:17:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2534 transitions. [2022-11-22 01:17:12,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 01:17:12,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:12,219 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:12,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:17:12,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:12,435 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:17:12,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:12,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1378472221, now seen corresponding path program 1 times [2022-11-22 01:17:12,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:12,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743407303] [2022-11-22 01:17:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:12,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:13,899 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:17:13,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:13,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743407303] [2022-11-22 01:17:13,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743407303] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:13,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715503855] [2022-11-22 01:17:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:13,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:13,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:13,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:13,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:17:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:14,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 3354 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 01:17:14,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-22 01:17:15,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:17:15,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715503855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:15,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:17:15,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-22 01:17:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763643290] [2022-11-22 01:17:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:15,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:17:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:17:15,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:17:15,110 INFO L87 Difference]: Start difference. First operand 1799 states and 2534 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 01:17:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:17,149 INFO L93 Difference]: Finished difference Result 3586 states and 5061 transitions. [2022-11-22 01:17:17,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:17:17,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 154 [2022-11-22 01:17:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:17,163 INFO L225 Difference]: With dead ends: 3586 [2022-11-22 01:17:17,163 INFO L226 Difference]: Without dead ends: 1807 [2022-11-22 01:17:17,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:17:17,171 INFO L413 NwaCegarLoop]: 1140 mSDtfsCounter, 13 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:17,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3407 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:17:17,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2022-11-22 01:17:17,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1805. [2022-11-22 01:17:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1169 states have (on average 1.3464499572284003) internal successors, (1574), 1201 states have internal predecessors, (1574), 482 states have call successors, (482), 153 states have call predecessors, (482), 153 states have return successors, (485), 474 states have call predecessors, (485), 480 states have call successors, (485) [2022-11-22 01:17:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2541 transitions. [2022-11-22 01:17:17,279 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2541 transitions. Word has length 154 [2022-11-22 01:17:17,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:17,280 INFO L495 AbstractCegarLoop]: Abstraction has 1805 states and 2541 transitions. [2022-11-22 01:17:17,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 01:17:17,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2541 transitions. [2022-11-22 01:17:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-22 01:17:17,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:17,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:17,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:17:17,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-22 01:17:17,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:17:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1153885068, now seen corresponding path program 1 times [2022-11-22 01:17:17,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:17,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894963719] [2022-11-22 01:17:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:17,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:17:18,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:18,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894963719] [2022-11-22 01:17:18,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894963719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:18,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629689431] [2022-11-22 01:17:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:18,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:17:18,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:19,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:17:19,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f360ae3-6061-46ef-8d3a-374cdf140652/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:17:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:20,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-22 01:17:20,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:17:20,289 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:17:20,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:17:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:17:20,310 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 14 treesize of output 16 [2022-11-22 01:17:20,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:17:20,321 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 14 treesize of output 16 [2022-11-22 01:17:20,711 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:17:20,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:17:21,467 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 14 treesize of output 16 [2022-11-22 01:17:21,484 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 14 treesize of output 16 [2022-11-22 01:17:21,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-22 01:17:21,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-22 01:17:22,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:17:22,301 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 14 treesize of output 16 [2022-11-22 01:17:22,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:17:22,311 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 14 treesize of output 16 [2022-11-22 01:17:22,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-11-22 01:17:22,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2022-11-22 01:17:22,855 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 01:17:22,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:17:23,712 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_430 Int) (|v_pkt_ctl_ioctl_~#ctrl_cmd~0#1.base_35| Int) (v_ArrVal_431 (Array Int Int)) (|v_pkt_ctl_ioctl_~#pkt_dev~0#1.base_27| Int) (v_ArrVal_434 (Array Int Int))) (or (not (= (select (store (store |c_#valid| |c_ULTIMATE.start_pkt_init_~#__key~3#1.base| v_ArrVal_430) |v_pkt_ctl_ioctl_~#ctrl_cmd~0#1.base_35| 1) |v_pkt_ctl_ioctl_~#pkt_dev~0#1.base_27|) 0)) (= (mod (+ (select (select (store |c_#memory_$Pointer$.offset| |v_pkt_ctl_ioctl_~#pkt_dev~0#1.base_27| v_ArrVal_434) |c_~#pkt_devs~0.base|) |c_~#pkt_devs~0.offset|) (select (select (store |c_#memory_$Pointer$.base| |v_pkt_ctl_ioctl_~#pkt_dev~0#1.base_27| v_ArrVal_431) |c_~#pkt_devs~0.base|) |c_~#pkt_devs~0.offset|)) 18446744073709551616) 0))) is different from false [2022-11-22 01:17:23,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629689431] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:17:23,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [862475176] [2022-11-22 01:17:23,779 INFO L159 IcfgInterpreter]: Started Sifa with 139 locations of interest [2022-11-22 01:17:23,779 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:17:23,784 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:17:23,790 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:17:23,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:17:29,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:17:29,410 INFO L217 Elim1Store]: Index analysis took 483 ms [2022-11-22 01:17:47,714 WARN L233 SmtUtils]: Spent 18.23s on a formula simplification. DAG size of input: 1668 DAG size of output: 1091 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:17:47,720 INFO L321 Elim1Store]: treesize reduction 1894, result has 46.1 percent of original size [2022-11-22 01:17:47,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 186 select indices, 186 select index equivalence classes, 17207 disjoint index pairs (out of 17205 index pairs), introduced 186 new quantified variables, introduced 185 case distinctions, treesize of input 937 treesize of output 2190 [2022-11-22 01:17:51,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 169 [2022-11-22 01:17:52,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:17:52,454 INFO L217 Elim1Store]: Index analysis took 711 ms [2022-11-22 01:18:18,285 WARN L233 SmtUtils]: Spent 25.77s on a formula simplification. DAG size of input: 2040 DAG size of output: 1113 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:18:18,289 INFO L321 Elim1Store]: treesize reduction 3330, result has 33.3 percent of original size [2022-11-22 01:18:18,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 188 select indices, 188 select index equivalence classes, 17393 disjoint index pairs (out of 17578 index pairs), introduced 188 new quantified variables, introduced 370 case distinctions, treesize of input 947 treesize of output 2245 [2022-11-22 01:18:21,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 173 [2022-11-22 01:18:22,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 40 select indices, 40 select index equivalence classes, 820 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 0 case distinctions, treesize of input 1681 treesize of output 1406 [2022-11-22 01:18:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:49,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 188 select indices, 188 select index equivalence classes, 17578 disjoint index pairs (out of 17578 index pairs), introduced 188 new quantified variables, introduced 0 case distinctions, treesize of input 941 treesize of output 565 [2022-11-22 01:18:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:18:51,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 187 select indices, 187 select index equivalence classes, 17392 disjoint index pairs (out of 17391 index pairs), introduced 187 new quantified variables, introduced 0 case distinctions, treesize of input 936 treesize of output 562 [2022-11-22 01:19:14,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:19:14,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 188 select indices, 188 select index equivalence classes, 17578 disjoint index pairs (out of 17578 index pairs), introduced 188 new quantified variables, introduced 0 case distinctions, treesize of input 941 treesize of output 565 [2022-11-22 01:19:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:19:16,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 187 select indices, 187 select index equivalence classes, 17392 disjoint index pairs (out of 17391 index pairs), introduced 187 new quantified variables, introduced 0 case distinctions, treesize of input 936 treesize of output 562 [2022-11-22 01:19:44,551 INFO L197 IcfgInterpreter]: Interpreting procedure mempool_create_kmalloc_pool with input of size 3457 for LOIs [2022-11-22 01:21:16,956 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 3455 for LOIs [2022-11-22 01:21:52,374 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:25:42,156 WARN L233 SmtUtils]: Spent 3.80m on a formula simplification. DAG size of input: 3483 DAG size of output: 3133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:27:03,817 WARN L233 SmtUtils]: Spent 1.32m on a formula simplification that was a NOOP. DAG size: 3457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:28:26,041 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification that was a NOOP. DAG size: 3500 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:29:45,662 WARN L233 SmtUtils]: Spent 1.28m on a formula simplification that was a NOOP. DAG size: 3455 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)