./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS --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 f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 --- 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-8393723 [2022-11-19 07:17:00,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:17:00,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:17:00,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:17:00,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:17:00,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:17:00,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:17:00,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:17:00,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:17:00,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:17:00,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:17:00,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:17:00,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:17:00,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:17:00,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:17:00,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:17:00,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:17:00,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:17:00,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:17:00,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:17:00,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:17:00,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:17:00,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:17:00,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:17:00,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:17:00,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:17:00,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:17:00,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:17:00,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:17:00,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:17:00,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:17:00,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:17:00,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:17:00,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:17:00,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:17:00,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:17:00,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:17:00,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:17:00,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:17:00,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:17:00,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:17:00,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:17:00,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:17:00,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:17:00,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:17:00,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:17:00,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:17:00,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:17:00,335 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:17:00,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:17:00,336 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:17:00,336 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:17:00,337 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:17:00,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:17:00,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:17:00,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:17:00,338 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:17:00,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:17:00,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:17:00,339 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:17:00,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:17:00,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:17:00,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:17:00,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:17:00,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:17:00,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:17:00,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:17:00,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:17:00,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:17:00,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:17:00,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:17:00,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:00,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:17:00,343 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:17:00,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:17:00,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:17:00,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:17:00,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:17:00,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:17:00,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:17:00,344 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_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 [2022-11-19 07:17:00,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:17:00,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:17:00,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:17:00,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:17:00,738 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:17:00,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2022-11-19 07:17:00,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/data/b1e48f063/8c6ef9102da749429232d16af1506c59/FLAGcbd477d49 [2022-11-19 07:17:01,665 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:17:01,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2022-11-19 07:17:01,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/data/b1e48f063/8c6ef9102da749429232d16af1506c59/FLAGcbd477d49 [2022-11-19 07:17:02,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/data/b1e48f063/8c6ef9102da749429232d16af1506c59 [2022-11-19 07:17:02,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:17:02,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:17:02,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:02,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:17:02,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:17:02,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:17:02" (1/1) ... [2022-11-19 07:17:02,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0609b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:02, skipping insertion in model container [2022-11-19 07:17:02,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:17:02" (1/1) ... [2022-11-19 07:17:02,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:17:02,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:17:04,035 WARN L234 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_8297b58a-d67c-4a52-9796-1a2669f21275/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2022-11-19 07:17:04,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:04,111 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:17:04,556 WARN L234 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_8297b58a-d67c-4a52-9796-1a2669f21275/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2022-11-19 07:17:04,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:04,801 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:17:04,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04 WrapperNode [2022-11-19 07:17:04,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:04,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:04,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:17:04,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:17:04,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:04,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,053 INFO L138 Inliner]: procedures = 200, calls = 1513, calls flagged for inlining = 98, calls inlined = 84, statements flattened = 3366 [2022-11-19 07:17:05,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:05,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:17:05,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:17:05,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:17:05,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:17:05,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:17:05,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:17:05,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:17:05,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (1/1) ... [2022-11-19 07:17:05,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:05,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:17:05,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:17:05,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:17:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:17:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:17:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:17:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:17:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:17:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:17:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:17:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:17:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:17:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:17:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-19 07:17:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-19 07:17:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:17:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:17:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:17:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:17:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-19 07:17:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-19 07:17:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-19 07:17:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-19 07:17:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-19 07:17:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-19 07:17:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:17:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:17:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 07:17:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 07:17:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:17:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:17:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:17:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:17:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 07:17:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-19 07:17:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-19 07:17:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-19 07:17:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:17:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:17:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-19 07:17:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-19 07:17:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:17:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:17:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:17:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:17:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:17:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:17:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 07:17:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 07:17:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:17:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:17:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:17:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:17:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2022-11-19 07:17:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2022-11-19 07:17:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:17:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:17:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:17:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:17:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2022-11-19 07:17:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2022-11-19 07:17:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:17:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:17:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:17:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:17:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:17:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:17:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:17:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:17:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:17:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:17:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:17:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-19 07:17:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-19 07:17:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:17:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:17:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2022-11-19 07:17:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2022-11-19 07:17:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:17:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:17:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:17:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:17:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:17:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:17:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:17:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2022-11-19 07:17:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2022-11-19 07:17:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:17:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 07:17:05,378 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 07:17:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:17:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2022-11-19 07:17:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2022-11-19 07:17:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:17:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-19 07:17:05,380 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-19 07:17:05,380 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2022-11-19 07:17:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2022-11-19 07:17:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2022-11-19 07:17:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2022-11-19 07:17:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:17:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:17:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 07:17:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 07:17:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-19 07:17:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-19 07:17:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-11-19 07:17:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-11-19 07:17:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:17:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:17:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:17:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:17:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:17:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:17:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:17:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:17:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2022-11-19 07:17:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2022-11-19 07:17:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:17:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-19 07:17:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-19 07:17:05,392 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-19 07:17:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-19 07:17:05,398 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-19 07:17:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-19 07:17:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-19 07:17:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-19 07:17:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:17:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:17:05,399 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:17:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:17:06,137 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:17:06,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:17:06,883 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:06,891 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:06,900 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:06,901 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:06,904 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:06,905 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:06,915 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:09,360 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume !false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##414: assume false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume !false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##277: assume !false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##225: assume false; [2022-11-19 07:17:09,361 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##226: assume !false; [2022-11-19 07:17:09,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false; [2022-11-19 07:17:09,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false; [2022-11-19 07:17:09,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-11-19 07:17:09,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-11-19 07:17:09,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume !false;call ULTIMATE.dealloc(fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset);havoc fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset;call ULTIMATE.dealloc(fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset);havoc fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset; [2022-11-19 07:17:09,362 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume false; [2022-11-19 07:17:09,441 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:17:10,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:17:10,346 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:17:10,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:10 BoogieIcfgContainer [2022-11-19 07:17:10,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:17:10,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:17:10,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:17:10,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:17:10,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:17:02" (1/3) ... [2022-11-19 07:17:10,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8c4acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:10, skipping insertion in model container [2022-11-19 07:17:10,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:04" (2/3) ... [2022-11-19 07:17:10,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8c4acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:10, skipping insertion in model container [2022-11-19 07:17:10,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:10" (3/3) ... [2022-11-19 07:17:10,360 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2022-11-19 07:17:10,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:17:10,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:17:10,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:17:10,464 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;@6e9828d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:17:10,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:17:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 503 states have (on average 1.3041749502982107) internal successors, (656), 511 states have internal predecessors, (656), 260 states have call successors, (260), 56 states have call predecessors, (260), 56 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-11-19 07:17:10,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:17:10,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:10,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:10,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:10,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:10,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1538453276, now seen corresponding path program 1 times [2022-11-19 07:17:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:10,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494827432] [2022-11-19 07:17:10,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:11,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:11,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494827432] [2022-11-19 07:17:11,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494827432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:11,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:11,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:11,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378031611] [2022-11-19 07:17:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:11,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:11,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:11,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:11,080 INFO L87 Difference]: Start difference. First operand has 821 states, 503 states have (on average 1.3041749502982107) internal successors, (656), 511 states have internal predecessors, (656), 260 states have call successors, (260), 56 states have call predecessors, (260), 56 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:17:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:12,362 INFO L93 Difference]: Finished difference Result 1640 states and 2353 transitions. [2022-11-19 07:17:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-19 07:17:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:12,383 INFO L225 Difference]: With dead ends: 1640 [2022-11-19 07:17:12,384 INFO L226 Difference]: Without dead ends: 819 [2022-11-19 07:17:12,393 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 [2022-11-19 07:17:12,397 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 0 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:12,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2073 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 07:17:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2022-11-19 07:17:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2022-11-19 07:17:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 503 states have (on average 1.3001988071570576) internal successors, (654), 509 states have internal predecessors, (654), 260 states have call successors, (260), 56 states have call predecessors, (260), 55 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2022-11-19 07:17:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1172 transitions. [2022-11-19 07:17:12,521 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1172 transitions. Word has length 15 [2022-11-19 07:17:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:12,521 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1172 transitions. [2022-11-19 07:17:12,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:17:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1172 transitions. [2022-11-19 07:17:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:17:12,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:12,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:12,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:17:12,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash -852671737, now seen corresponding path program 1 times [2022-11-19 07:17:12,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:12,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381126778] [2022-11-19 07:17:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:12,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:12,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:12,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381126778] [2022-11-19 07:17:12,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381126778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:17:12,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778912531] [2022-11-19 07:17:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:12,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:17:12,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:17:12,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:17:12,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:17:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:13,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:17:13,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:17:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:17:13,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:17:13,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778912531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:13,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:17:13,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-19 07:17:13,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313458990] [2022-11-19 07:17:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:13,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:13,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:17:13,377 INFO L87 Difference]: Start difference. First operand 819 states and 1172 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:17:14,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:14,673 INFO L93 Difference]: Finished difference Result 2373 states and 3389 transitions. [2022-11-19 07:17:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:17:14,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-19 07:17:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:14,682 INFO L225 Difference]: With dead ends: 2373 [2022-11-19 07:17:14,682 INFO L226 Difference]: Without dead ends: 1559 [2022-11-19 07:17:14,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:17:14,686 INFO L413 NwaCegarLoop]: 1373 mSDtfsCounter, 1051 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:14,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 2397 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 07:17:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2022-11-19 07:17:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1555. [2022-11-19 07:17:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 954 states have (on average 1.29874213836478) internal successors, (1239), 965 states have internal predecessors, (1239), 490 states have call successors, (490), 111 states have call predecessors, (490), 110 states have return successors, (488), 487 states have call predecessors, (488), 488 states have call successors, (488) [2022-11-19 07:17:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2217 transitions. [2022-11-19 07:17:14,781 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2217 transitions. Word has length 16 [2022-11-19 07:17:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:14,782 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2217 transitions. [2022-11-19 07:17:14,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:17:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2217 transitions. [2022-11-19 07:17:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:17:14,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:14,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:14,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:17:14,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:17:14,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:14,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1135046160, now seen corresponding path program 1 times [2022-11-19 07:17:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:14,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772730042] [2022-11-19 07:17:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:14,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:15,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:15,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772730042] [2022-11-19 07:17:15,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772730042] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:17:15,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229096470] [2022-11-19 07:17:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:15,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:17:15,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:17:15,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:17:15,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:17:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:15,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:17:15,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:17:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:15,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:17:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:15,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229096470] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:17:15,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [174926729] [2022-11-19 07:17:15,985 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2022-11-19 07:17:15,998 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:17:16,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:17:16,007 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:17:16,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:17:17,574 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 114 treesize of output 99 [2022-11-19 07:17:17,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:19,928 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:17:19,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:17:20,540 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 114 treesize of output 99 [2022-11-19 07:17:20,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:23,507 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:17:23,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:17:24,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:17:26,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:17:26,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:17:27,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:17:27,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:17:35,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:17:36,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,926 INFO L217 Elim1Store]: Index analysis took 124 ms [2022-11-19 07:17:36,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-19 07:17:38,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:17:45,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:17:47,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:17:47,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:17:47,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:17:47,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:17:49,520 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:17:49,559 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:17:49,572 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-19 07:17:49,679 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:17:49,692 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:18:01,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [174926729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:01,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:18:01,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 3, 4] total 30 [2022-11-19 07:18:01,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846221823] [2022-11-19 07:18:01,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:01,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 07:18:01,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:01,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 07:18:01,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:18:01,601 INFO L87 Difference]: Start difference. First operand 1555 states and 2217 transitions. Second operand has 25 states, 20 states have (on average 1.1) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:18:07,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:09,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:09,831 INFO L93 Difference]: Finished difference Result 1578 states and 2246 transitions. [2022-11-19 07:18:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 07:18:09,832 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 1.1) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-11-19 07:18:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:09,842 INFO L225 Difference]: With dead ends: 1578 [2022-11-19 07:18:09,842 INFO L226 Difference]: Without dead ends: 1575 [2022-11-19 07:18:09,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:18:09,845 INFO L413 NwaCegarLoop]: 1017 mSDtfsCounter, 7 mSDsluCounter, 13365 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14382 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2234 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:09,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14382 Invalid, 3442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1207 Invalid, 0 Unknown, 2234 Unchecked, 7.9s Time] [2022-11-19 07:18:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2022-11-19 07:18:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2022-11-19 07:18:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 969 states have (on average 1.301341589267286) internal successors, (1261), 980 states have internal predecessors, (1261), 492 states have call successors, (492), 115 states have call predecessors, (492), 113 states have return successors, (490), 488 states have call predecessors, (490), 490 states have call successors, (490) [2022-11-19 07:18:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2243 transitions. [2022-11-19 07:18:09,944 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2243 transitions. Word has length 30 [2022-11-19 07:18:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:09,945 INFO L495 AbstractCegarLoop]: Abstraction has 1575 states and 2243 transitions. [2022-11-19 07:18:09,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 1.1) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:18:09,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2243 transitions. [2022-11-19 07:18:09,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 07:18:09,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:09,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:09,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:18:10,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:10,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:10,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash 557573584, now seen corresponding path program 1 times [2022-11-19 07:18:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:10,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082199886] [2022-11-19 07:18:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:10,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:10,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:10,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082199886] [2022-11-19 07:18:10,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082199886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:18:10,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010359391] [2022-11-19 07:18:10,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:10,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:10,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:10,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:10,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:18:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:10,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:18:10,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:18:10,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:18:10,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010359391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:10,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:18:10,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:18:10,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345400664] [2022-11-19 07:18:10,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:10,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:10,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:10,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:10,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:18:10,947 INFO L87 Difference]: Start difference. First operand 1575 states and 2243 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:18:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:12,028 INFO L93 Difference]: Finished difference Result 3590 states and 5203 transitions. [2022-11-19 07:18:12,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:12,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-19 07:18:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:12,040 INFO L225 Difference]: With dead ends: 3590 [2022-11-19 07:18:12,040 INFO L226 Difference]: Without dead ends: 2043 [2022-11-19 07:18:12,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:18:12,046 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 492 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:12,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 2164 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 07:18:12,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2022-11-19 07:18:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 2039. [2022-11-19 07:18:12,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 1269 states have (on average 1.3144208037825058) internal successors, (1668), 1278 states have internal predecessors, (1668), 660 states have call successors, (660), 111 states have call predecessors, (660), 109 states have return successors, (658), 656 states have call predecessors, (658), 658 states have call successors, (658) [2022-11-19 07:18:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2986 transitions. [2022-11-19 07:18:12,156 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2986 transitions. Word has length 31 [2022-11-19 07:18:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:12,157 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2986 transitions. [2022-11-19 07:18:12,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:18:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2986 transitions. [2022-11-19 07:18:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:18:12,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:12,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:12,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:18:12,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:12,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:12,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash 374226575, now seen corresponding path program 1 times [2022-11-19 07:18:12,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:12,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650952106] [2022-11-19 07:18:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:12,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650952106] [2022-11-19 07:18:12,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650952106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:18:12,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870664602] [2022-11-19 07:18:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:12,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:12,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:12,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:12,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:18:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:13,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:18:13,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:13,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:18:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:13,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870664602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:18:13,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [576121855] [2022-11-19 07:18:13,197 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-19 07:18:13,197 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:18:13,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:18:13,198 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:18:13,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:18:14,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:15,902 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:18:15,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:18:16,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:18:16,769 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 114 treesize of output 99 [2022-11-19 07:18:16,880 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 114 treesize of output 99 [2022-11-19 07:18:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:17,137 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-11-19 07:18:19,790 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:18:19,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:18:21,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:18:21,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:18:22,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:18:22,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:18:30,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:30,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:18:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:31,435 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-19 07:18:31,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-19 07:18:32,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:32,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:18:39,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:18:41,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:18:41,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:18:41,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:18:42,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:18:43,931 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:18:43,960 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 114 for LOIs [2022-11-19 07:18:43,990 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:18:44,000 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:18:44,007 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:18:56,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [576121855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:56,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:18:56,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 3, 4] total 31 [2022-11-19 07:18:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109189834] [2022-11-19 07:18:56,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:56,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 07:18:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 07:18:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-11-19 07:18:56,660 INFO L87 Difference]: Start difference. First operand 2039 states and 2986 transitions. Second operand has 26 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:19:04,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:04,349 INFO L93 Difference]: Finished difference Result 3362 states and 4956 transitions. [2022-11-19 07:19:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-19 07:19:04,350 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2022-11-19 07:19:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:04,360 INFO L225 Difference]: With dead ends: 3362 [2022-11-19 07:19:04,361 INFO L226 Difference]: Without dead ends: 2039 [2022-11-19 07:19:04,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-11-19 07:19:04,366 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 8 mSDsluCounter, 12614 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13636 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 593 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:04,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13636 Invalid, 1838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1243 Invalid, 0 Unknown, 593 Unchecked, 7.4s Time] [2022-11-19 07:19:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-11-19 07:19:04,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2039. [2022-11-19 07:19:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 1269 states have (on average 1.313632781717888) internal successors, (1667), 1278 states have internal predecessors, (1667), 660 states have call successors, (660), 111 states have call predecessors, (660), 109 states have return successors, (658), 656 states have call predecessors, (658), 658 states have call successors, (658) [2022-11-19 07:19:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2985 transitions. [2022-11-19 07:19:04,497 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2985 transitions. Word has length 32 [2022-11-19 07:19:04,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:04,497 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2985 transitions. [2022-11-19 07:19:04,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:19:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2985 transitions. [2022-11-19 07:19:04,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:19:04,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:04,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:04,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:19:04,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:04,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:04,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:04,701 INFO L85 PathProgramCache]: Analyzing trace with hash -334208011, now seen corresponding path program 1 times [2022-11-19 07:19:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:04,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897269159] [2022-11-19 07:19:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:04,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:19:04,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:04,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897269159] [2022-11-19 07:19:04,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897269159] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:19:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134325080] [2022-11-19 07:19:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:04,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:04,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:04,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:04,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:19:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:05,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:19:05,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:19:05,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:19:05,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134325080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:05,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:19:05,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:19:05,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084862103] [2022-11-19 07:19:05,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:05,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:19:05,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:19:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:19:05,430 INFO L87 Difference]: Start difference. First operand 2039 states and 2985 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:19:06,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:06,109 INFO L93 Difference]: Finished difference Result 4050 states and 5935 transitions. [2022-11-19 07:19:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:19:06,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-19 07:19:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:06,124 INFO L225 Difference]: With dead ends: 4050 [2022-11-19 07:19:06,124 INFO L226 Difference]: Without dead ends: 2037 [2022-11-19 07:19:06,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:19:06,131 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 509 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:06,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1403 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 07:19:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-11-19 07:19:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 2037. [2022-11-19 07:19:06,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 1267 states have (on average 1.3093922651933703) internal successors, (1659), 1276 states have internal predecessors, (1659), 660 states have call successors, (660), 111 states have call predecessors, (660), 109 states have return successors, (658), 656 states have call predecessors, (658), 658 states have call successors, (658) [2022-11-19 07:19:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2977 transitions. [2022-11-19 07:19:06,262 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2977 transitions. Word has length 32 [2022-11-19 07:19:06,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:06,264 INFO L495 AbstractCegarLoop]: Abstraction has 2037 states and 2977 transitions. [2022-11-19 07:19:06,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:19:06,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2977 transitions. [2022-11-19 07:19:06,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:19:06,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:06,266 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] [2022-11-19 07:19:06,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:19:06,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:06,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:06,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1035655435, now seen corresponding path program 1 times [2022-11-19 07:19:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:06,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447677194] [2022-11-19 07:19:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:06,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:19:06,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:06,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447677194] [2022-11-19 07:19:06,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447677194] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:19:06,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52380187] [2022-11-19 07:19:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:06,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:06,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:06,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:06,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:19:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:07,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:19:07,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:19:07,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:07,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:19:07,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52380187] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:07,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1407505496] [2022-11-19 07:19:07,206 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-19 07:19:07,206 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:19:07,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:19:07,207 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:19:07,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:19:07,945 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 114 treesize of output 99 [2022-11-19 07:19:08,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:09,793 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:19:09,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:19:10,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:10,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:19:10,564 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 114 treesize of output 99 [2022-11-19 07:19:10,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:13,340 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:19:13,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:19:15,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:19:15,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:15,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:19:15,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:19:16,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:19:23,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:23,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:19:24,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:24,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-19 07:19:25,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:19:25,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:25,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:19:34,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:19:34,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:19:34,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:19:35,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:19:36,976 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:19:37,008 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:19:37,014 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-19 07:19:37,100 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:19:37,107 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:19:53,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1407505496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:53,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:19:53,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 3, 4] total 32 [2022-11-19 07:19:53,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342582745] [2022-11-19 07:19:53,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:53,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-19 07:19:53,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:53,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-19 07:19:53,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:19:53,480 INFO L87 Difference]: Start difference. First operand 2037 states and 2977 transitions. Second operand has 27 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:19:58,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:58,610 INFO L93 Difference]: Finished difference Result 2058 states and 3005 transitions. [2022-11-19 07:19:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-19 07:19:58,611 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-19 07:19:58,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:58,621 INFO L225 Difference]: With dead ends: 2058 [2022-11-19 07:19:58,622 INFO L226 Difference]: Without dead ends: 2055 [2022-11-19 07:19:58,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:19:58,624 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 7 mSDsluCounter, 9421 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10435 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1530 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:58,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10435 Invalid, 2430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 899 Invalid, 0 Unknown, 1530 Unchecked, 4.9s Time] [2022-11-19 07:19:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2022-11-19 07:19:58,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 2049. [2022-11-19 07:19:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1277 states have (on average 1.3093187157400157) internal successors, (1672), 1286 states have internal predecessors, (1672), 661 states have call successors, (661), 112 states have call predecessors, (661), 110 states have return successors, (659), 657 states have call predecessors, (659), 659 states have call successors, (659) [2022-11-19 07:19:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2992 transitions. [2022-11-19 07:19:58,746 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2992 transitions. Word has length 36 [2022-11-19 07:19:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:58,747 INFO L495 AbstractCegarLoop]: Abstraction has 2049 states and 2992 transitions. [2022-11-19 07:19:58,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:19:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2992 transitions. [2022-11-19 07:19:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 07:19:58,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:58,749 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] [2022-11-19 07:19:58,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:19:58,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:58,958 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:58,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:58,959 INFO L85 PathProgramCache]: Analyzing trace with hash -935646486, now seen corresponding path program 1 times [2022-11-19 07:19:58,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:58,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232065418] [2022-11-19 07:19:58,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:58,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:19:59,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:59,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232065418] [2022-11-19 07:19:59,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232065418] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:19:59,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738208387] [2022-11-19 07:19:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:59,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:59,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:59,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:59,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:19:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:59,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:19:59,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:19:59,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:19:59,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738208387] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:59,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1093446512] [2022-11-19 07:19:59,709 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-19 07:19:59,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:19:59,710 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:19:59,710 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:19:59,710 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:20:00,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:02,235 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:20:02,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:20:02,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:05,289 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:20:05,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:20:05,689 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 114 treesize of output 99 [2022-11-19 07:20:05,846 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 114 treesize of output 99 [2022-11-19 07:20:06,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:06,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:20:07,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:20:07,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:20:08,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:20:08,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:20:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:16,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:20:17,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:20:17,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:17,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6845 treesize of output 6483 [2022-11-19 07:20:18,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:20:27,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:20:27,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:20:27,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:20:27,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:20:30,598 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:20:30,627 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 114 for LOIs [2022-11-19 07:20:30,651 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:20:30,663 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:20:30,671 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:20:48,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1093446512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:48,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:20:48,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 3, 4] total 33 [2022-11-19 07:20:48,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885327459] [2022-11-19 07:20:48,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:48,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-19 07:20:48,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:48,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-19 07:20:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=904, Unknown=0, NotChecked=0, Total=1056 [2022-11-19 07:20:48,223 INFO L87 Difference]: Start difference. First operand 2049 states and 2992 transitions. Second operand has 28 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:20:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:53,434 INFO L93 Difference]: Finished difference Result 3372 states and 4959 transitions. [2022-11-19 07:20:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-19 07:20:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-11-19 07:20:53,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:53,445 INFO L225 Difference]: With dead ends: 3372 [2022-11-19 07:20:53,446 INFO L226 Difference]: Without dead ends: 2049 [2022-11-19 07:20:53,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=152, Invalid=904, Unknown=0, NotChecked=0, Total=1056 [2022-11-19 07:20:53,451 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 7 mSDsluCounter, 11528 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12546 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1543 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:53,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12546 Invalid, 2480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 934 Invalid, 0 Unknown, 1543 Unchecked, 5.0s Time] [2022-11-19 07:20:53,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2022-11-19 07:20:53,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2039. [2022-11-19 07:20:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 1269 states have (on average 1.309692671394799) internal successors, (1662), 1278 states have internal predecessors, (1662), 660 states have call successors, (660), 111 states have call predecessors, (660), 109 states have return successors, (658), 656 states have call predecessors, (658), 658 states have call successors, (658) [2022-11-19 07:20:53,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2980 transitions. [2022-11-19 07:20:53,577 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2980 transitions. Word has length 38 [2022-11-19 07:20:53,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:53,578 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2980 transitions. [2022-11-19 07:20:53,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:20:53,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2980 transitions. [2022-11-19 07:20:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:20:53,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:53,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:53,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:20:53,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-19 07:20:53,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:53,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:53,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1593017477, now seen corresponding path program 1 times [2022-11-19 07:20:53,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:53,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808641896] [2022-11-19 07:20:53,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:53,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:20:53,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:53,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808641896] [2022-11-19 07:20:53,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808641896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:20:53,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943555613] [2022-11-19 07:20:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:53,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:53,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:53,990 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:20:54,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:20:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:54,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:20:54,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:54,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:20:54,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:20:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:20:54,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943555613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:20:54,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1177039683] [2022-11-19 07:20:54,582 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-19 07:20:54,582 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:20:54,583 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:20:54,583 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:20:54,583 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:20:55,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:55,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:20:55,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:58,239 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:20:58,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:20:58,629 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 114 treesize of output 99 [2022-11-19 07:20:58,740 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 114 treesize of output 99 [2022-11-19 07:20:58,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:58,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-19 07:21:00,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 909 treesize of output 759 [2022-11-19 07:21:00,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:21:00,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:21:01,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:21:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:08,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6854 treesize of output 6517 [2022-11-19 07:21:09,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:09,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6850 treesize of output 6513 [2022-11-19 07:21:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:10,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6855 treesize of output 6493 [2022-11-19 07:21:10,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:21:19,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:21:19,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:21:19,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:21:19,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:21:21,392 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:21:21,421 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:21:21,431 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-19 07:21:21,480 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:21:21,490 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:21:32,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1177039683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:32,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:21:32,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 3, 4] total 30 [2022-11-19 07:21:32,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515724186] [2022-11-19 07:21:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:32,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 07:21:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:32,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 07:21:32,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:21:32,797 INFO L87 Difference]: Start difference. First operand 2039 states and 2980 transitions. Second operand has 25 states, 20 states have (on average 1.45) internal successors, (29), 18 states have internal predecessors, (29), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 07:21:36,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:21:37,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:37,688 INFO L93 Difference]: Finished difference Result 3369 states and 4959 transitions. [2022-11-19 07:21:37,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 07:21:37,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 1.45) internal successors, (29), 18 states have internal predecessors, (29), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2022-11-19 07:21:37,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:37,699 INFO L225 Difference]: With dead ends: 3369 [2022-11-19 07:21:37,700 INFO L226 Difference]: Without dead ends: 2054 [2022-11-19 07:21:37,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=114, Invalid=756, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:21:37,706 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 5 mSDsluCounter, 10093 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11113 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1589 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:37,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11113 Invalid, 2342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 752 Invalid, 0 Unknown, 1589 Unchecked, 4.7s Time] [2022-11-19 07:21:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2022-11-19 07:21:37,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2054. [2022-11-19 07:21:37,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1281 states have (on average 1.3091334894613582) internal successors, (1677), 1290 states have internal predecessors, (1677), 662 states have call successors, (662), 113 states have call predecessors, (662), 110 states have return successors, (660), 657 states have call predecessors, (660), 660 states have call successors, (660) [2022-11-19 07:21:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2999 transitions. [2022-11-19 07:21:37,842 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2999 transitions. Word has length 40 [2022-11-19 07:21:37,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:37,842 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 2999 transitions. [2022-11-19 07:21:37,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 1.45) internal successors, (29), 18 states have internal predecessors, (29), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 07:21:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2999 transitions. [2022-11-19 07:21:37,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 07:21:37,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:37,844 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] [2022-11-19 07:21:37,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:38,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:38,053 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:21:38,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:38,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1819451122, now seen corresponding path program 1 times [2022-11-19 07:21:38,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:38,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83657651] [2022-11-19 07:21:38,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:38,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:21:38,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:38,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83657651] [2022-11-19 07:21:38,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83657651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:38,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477904217] [2022-11-19 07:21:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:38,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:38,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:38,267 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:38,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 07:21:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:38,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:21:38,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:21:38,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:21:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:21:38,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477904217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:21:38,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [891353750] [2022-11-19 07:21:38,871 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-11-19 07:21:38,872 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:21:38,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:21:38,872 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:21:38,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:21:39,572 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 114 treesize of output 99 [2022-11-19 07:21:39,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,264 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:21:42,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:21:42,663 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 114 treesize of output 99 [2022-11-19 07:21:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:42,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:21:43,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:43,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-19 07:21:44,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:21:45,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:21:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:45,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:21:45,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:21:53,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:21:54,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:54,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:21:55,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:55,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6845 treesize of output 6483 [2022-11-19 07:21:55,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:22:05,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:22:05,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:22:05,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:22:05,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:22:06,430 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-19 07:22:07,734 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-19 07:22:07,999 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-19 07:22:09,483 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:22:09,513 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:22:09,525 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-19 07:22:09,612 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:22:09,622 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:29,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [891353750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:22:29,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:29,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 3, 4] total 35 [2022-11-19 07:22:29,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153662844] [2022-11-19 07:22:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:22:29,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-19 07:22:29,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-19 07:22:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 07:22:29,231 INFO L87 Difference]: Start difference. First operand 2054 states and 2999 transitions. Second operand has 30 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:22:32,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:22:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:33,565 INFO L93 Difference]: Finished difference Result 2080 states and 3037 transitions. [2022-11-19 07:22:33,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-19 07:22:33,565 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-19 07:22:33,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:33,576 INFO L225 Difference]: With dead ends: 2080 [2022-11-19 07:22:33,576 INFO L226 Difference]: Without dead ends: 2077 [2022-11-19 07:22:33,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 07:22:33,579 INFO L413 NwaCegarLoop]: 1011 mSDtfsCounter, 4 mSDsluCounter, 11891 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12902 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1804 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:33,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12902 Invalid, 2390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 1804 Unchecked, 4.1s Time] [2022-11-19 07:22:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2022-11-19 07:22:33,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2070. [2022-11-19 07:22:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 1295 states have (on average 1.311969111969112) internal successors, (1699), 1304 states have internal predecessors, (1699), 663 states have call successors, (663), 114 states have call predecessors, (663), 111 states have return successors, (661), 658 states have call predecessors, (661), 661 states have call successors, (661) [2022-11-19 07:22:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 3023 transitions. [2022-11-19 07:22:33,730 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 3023 transitions. Word has length 39 [2022-11-19 07:22:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:33,730 INFO L495 AbstractCegarLoop]: Abstraction has 2070 states and 3023 transitions. [2022-11-19 07:22:33,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:22:33,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 3023 transitions. [2022-11-19 07:22:33,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 07:22:33,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:33,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:22:33,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:33,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:33,942 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:22:33,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:33,942 INFO L85 PathProgramCache]: Analyzing trace with hash 357762189, now seen corresponding path program 1 times [2022-11-19 07:22:33,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:33,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976733034] [2022-11-19 07:22:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:33,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:34,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:34,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:34,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976733034] [2022-11-19 07:22:34,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976733034] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:22:34,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101335211] [2022-11-19 07:22:34,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:34,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:34,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:34,079 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:22:34,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:22:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:34,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:22:34,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:34,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:34,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101335211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:34,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [536729442] [2022-11-19 07:22:34,663 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-19 07:22:34,663 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:34,663 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:34,664 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:34,664 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:35,415 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 114 treesize of output 99 [2022-11-19 07:22:35,516 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 114 treesize of output 99 [2022-11-19 07:22:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,363 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:22:38,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:22:38,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:38,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:22:39,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:39,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-19 07:22:40,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:22:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:40,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:22:40,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:22:41,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:22:51,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:51,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:22:52,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:52,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-19 07:22:52,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:22:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:53,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:23:02,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:23:02,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:23:02,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:23:03,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:23:05,359 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:23:05,391 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 95 for LOIs [2022-11-19 07:23:05,396 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 99 for LOIs [2022-11-19 07:23:05,402 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:23:05,409 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-19 07:23:05,541 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:23:05,553 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:23:24,680 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71786#(and (= ~LDV_IN_INTERRUPT~0 1) (<= 0 ~ldv_module_refcounter~0) (= |~#type_strings~0.offset| 0) (= ~__mod_pci_device_table~0.class_mask 0) (= |~#fst_pci_dev_id~0.base| 45) (= |~#fst_int_task~0.offset| 0) (= |~#fst_excluded_list~0.base| 50) (= ~__mod_pci_device_table~0.subvendor 0) (= ~__mod_pci_device_table~0.class 0) (= |~#fst_work_intq~0.offset| 0) (not (= ~ldv_module_refcounter~0 1)) (= 46 |~#type_strings~0.base|) (= |~#fst_tx_task~0.base| 51) (= |~#fst_pci_dev_id~0.offset| 0) (= |~#fst_work_txq~0.base| 55) (= 12 ~fst_txq_high~0) (= 0 |~#fst_tx_task~0.offset|) (= |~#fst_excluded_list~0.offset| 0) (= ~fst_txq_low~0 8) (= 49 |~#fst_card_array~0.base|) (= 47 |~#fst_work_intq~0.base|) (= ~fst_excluded_cards~0 0) (= ~__mod_pci_device_table~0.device 0) (= |~#fst_ops~0.offset| 0) (= ~__mod_pci_device_table~0.driver_data 0) (= 53 |~#fst_ops~0.base|) (= ~__mod_pci_device_table~0.vendor 0) (= ~__mod_pci_device_table~0.subdevice 0) (= |~#fst_work_q_lock~0.base| 48) (= |~#fst_driver~0.offset| 0) (= |~#fst_int_task~0.base| 52) (= |#NULL.offset| 0) (= 7 ~fst_max_reads~0) (= |~#fst_work_q_lock~0.offset| 0) (= 54 |~#fst_driver~0.base|) (<= 0 |#StackHeapBarrier|) (= |~#fst_work_txq~0.offset| 0) (= |#NULL.base| 0) (= |~#fst_card_array~0.offset| 0))' at error location [2022-11-19 07:23:24,680 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:23:24,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:23:24,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2022-11-19 07:23:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464612404] [2022-11-19 07:23:24,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:23:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:23:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:23:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 07:23:24,683 INFO L87 Difference]: Start difference. First operand 2070 states and 3023 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-19 07:23:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:26,126 INFO L93 Difference]: Finished difference Result 4140 states and 6048 transitions. [2022-11-19 07:23:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:23:26,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 42 [2022-11-19 07:23:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:26,137 INFO L225 Difference]: With dead ends: 4140 [2022-11-19 07:23:26,137 INFO L226 Difference]: Without dead ends: 2073 [2022-11-19 07:23:26,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 87 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 07:23:26,145 INFO L413 NwaCegarLoop]: 1033 mSDtfsCounter, 0 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:26,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3097 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:23:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2022-11-19 07:23:26,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2073. [2022-11-19 07:23:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1298 states have (on average 1.3112480739599384) internal successors, (1702), 1307 states have internal predecessors, (1702), 663 states have call successors, (663), 114 states have call predecessors, (663), 111 states have return successors, (661), 658 states have call predecessors, (661), 661 states have call successors, (661) [2022-11-19 07:23:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3026 transitions. [2022-11-19 07:23:26,309 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3026 transitions. Word has length 42 [2022-11-19 07:23:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:26,309 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 3026 transitions. [2022-11-19 07:23:26,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-19 07:23:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3026 transitions. [2022-11-19 07:23:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 07:23:26,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:26,313 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:26,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:26,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-19 07:23:26,521 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1311082730, now seen corresponding path program 2 times [2022-11-19 07:23:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:26,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640075680] [2022-11-19 07:23:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:26,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:26,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:26,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640075680] [2022-11-19 07:23:26,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640075680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:23:26,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079239952] [2022-11-19 07:23:26,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:23:26,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:26,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:23:26,739 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:23:26,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 07:23:27,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:23:27,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:23:27,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-19 07:23:27,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 07:23:27,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:27,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079239952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:27,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:23:27,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 14 [2022-11-19 07:23:27,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800238517] [2022-11-19 07:23:27,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:27,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:23:27,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:23:27,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-19 07:23:27,566 INFO L87 Difference]: Start difference. First operand 2073 states and 3026 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-19 07:23:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:41,254 INFO L93 Difference]: Finished difference Result 7207 states and 10669 transitions. [2022-11-19 07:23:41,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:23:41,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 45 [2022-11-19 07:23:41,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:41,285 INFO L225 Difference]: With dead ends: 7207 [2022-11-19 07:23:41,285 INFO L226 Difference]: Without dead ends: 5887 [2022-11-19 07:23:41,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:23:41,294 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 3408 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 8271 mSolverCounterSat, 3014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3846 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 11285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3014 IncrementalHoareTripleChecker+Valid, 8271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:41,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3846 Valid, 5478 Invalid, 11285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3014 Valid, 8271 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2022-11-19 07:23:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5887 states. [2022-11-19 07:23:41,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5887 to 5863. [2022-11-19 07:23:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 3661 states have (on average 1.3179459164162797) internal successors, (4825), 3688 states have internal predecessors, (4825), 1924 states have call successors, (1924), 279 states have call predecessors, (1924), 277 states have return successors, (1925), 1918 states have call predecessors, (1925), 1922 states have call successors, (1925) [2022-11-19 07:23:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 8674 transitions. [2022-11-19 07:23:41,843 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 8674 transitions. Word has length 45 [2022-11-19 07:23:41,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:41,845 INFO L495 AbstractCegarLoop]: Abstraction has 5863 states and 8674 transitions. [2022-11-19 07:23:41,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-19 07:23:41,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 8674 transitions. [2022-11-19 07:23:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 07:23:41,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:41,847 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:23:41,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:42,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 07:23:42,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:42,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:42,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1969956997, now seen corresponding path program 1 times [2022-11-19 07:23:42,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:42,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054677218] [2022-11-19 07:23:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:42,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:23:42,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:42,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054677218] [2022-11-19 07:23:42,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054677218] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:23:42,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036948293] [2022-11-19 07:23:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:42,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:42,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:23:42,340 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:23:42,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-19 07:23:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:42,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:23:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:23:42,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:23:42,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036948293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:42,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1092661046] [2022-11-19 07:23:43,000 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-19 07:23:43,000 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:23:43,001 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:23:43,001 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:23:43,001 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:23:43,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:45,552 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:23:45,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:23:45,897 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 114 treesize of output 99 [2022-11-19 07:23:45,991 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 114 treesize of output 99 [2022-11-19 07:23:46,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:46,269 INFO L217 Elim1Store]: Index analysis took 101 ms [2022-11-19 07:23:48,836 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:23:48,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:23:49,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:49,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:23:51,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:23:51,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 663 [2022-11-19 07:23:51,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:51,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 899 treesize of output 749 [2022-11-19 07:23:52,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-19 07:24:00,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:00,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6844 treesize of output 6507 [2022-11-19 07:24:01,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:01,811 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-19 07:24:01,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6849 treesize of output 6487 [2022-11-19 07:24:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:24:03,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6840 treesize of output 6503 [2022-11-19 07:24:10,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:24:12,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:24:12,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:24:12,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:24:12,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:24:13,221 INFO L321 Elim1Store]: treesize reduction 61, result has 22.8 percent of original size [2022-11-19 07:24:13,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 36 [2022-11-19 07:24:13,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:24:13,884 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:24:13,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:24:15,038 INFO L321 Elim1Store]: treesize reduction 115, result has 43.9 percent of original size [2022-11-19 07:24:15,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 411 treesize of output 486 [2022-11-19 07:24:38,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:24:41,411 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:24:41,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:24:42,754 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 07:24:42,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-19 07:24:42,984 INFO L321 Elim1Store]: treesize reduction 115, result has 43.9 percent of original size [2022-11-19 07:24:42,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 411 treesize of output 486 [2022-11-19 07:24:50,057 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 07:24:50,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:24:53,164 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 130 for LOIs [2022-11-19 07:24:53,184 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:24:53,192 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 163 for LOIs [2022-11-19 07:24:53,373 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:24:53,382 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:25:33,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1092661046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:25:33,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:25:33,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [7, 6, 7] total 42 [2022-11-19 07:25:33,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476431964] [2022-11-19 07:25:33,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:25:33,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-19 07:25:33,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:33,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-19 07:25:33,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1543, Unknown=0, NotChecked=0, Total=1722 [2022-11-19 07:25:33,243 INFO L87 Difference]: Start difference. First operand 5863 states and 8674 transitions. Second operand has 31 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:26:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:08,215 INFO L93 Difference]: Finished difference Result 6347 states and 9369 transitions. [2022-11-19 07:26:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-19 07:26:08,216 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2022-11-19 07:26:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:08,245 INFO L225 Difference]: With dead ends: 6347 [2022-11-19 07:26:08,246 INFO L226 Difference]: Without dead ends: 6336 [2022-11-19 07:26:08,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 07:26:08,250 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 502 mSDsluCounter, 12085 mSDsCounter, 0 mSdLazyCounter, 6364 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 13158 SdHoareTripleChecker+Invalid, 10197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 6364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3690 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:08,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 13158 Invalid, 10197 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [143 Valid, 6364 Invalid, 0 Unknown, 3690 Unchecked, 32.1s Time] [2022-11-19 07:26:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6336 states. [2022-11-19 07:26:09,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6336 to 6208. [2022-11-19 07:26:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6208 states, 3875 states have (on average 1.3181935483870968) internal successors, (5108), 3911 states have internal predecessors, (5108), 2031 states have call successors, (2031), 303 states have call predecessors, (2031), 301 states have return successors, (2032), 2017 states have call predecessors, (2032), 2029 states have call successors, (2032) [2022-11-19 07:26:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6208 states to 6208 states and 9171 transitions. [2022-11-19 07:26:09,105 INFO L78 Accepts]: Start accepts. Automaton has 6208 states and 9171 transitions. Word has length 45 [2022-11-19 07:26:09,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:09,106 INFO L495 AbstractCegarLoop]: Abstraction has 6208 states and 9171 transitions. [2022-11-19 07:26:09,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 25 states have (on average 1.12) internal successors, (28), 23 states have internal predecessors, (28), 5 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:26:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 6208 states and 9171 transitions. [2022-11-19 07:26:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 07:26:09,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:09,111 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-19 07:26:09,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:26:09,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:09,320 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:26:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:09,321 INFO L85 PathProgramCache]: Analyzing trace with hash -732382672, now seen corresponding path program 1 times [2022-11-19 07:26:09,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:09,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020823596] [2022-11-19 07:26:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:09,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:26:09,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:09,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020823596] [2022-11-19 07:26:09,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020823596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:09,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:09,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:26:09,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456864230] [2022-11-19 07:26:09,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:09,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:26:09,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:09,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:26:09,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:26:09,694 INFO L87 Difference]: Start difference. First operand 6208 states and 9171 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 07:26:13,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:13,527 INFO L93 Difference]: Finished difference Result 8056 states and 11976 transitions. [2022-11-19 07:26:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:26:13,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2022-11-19 07:26:13,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:13,559 INFO L225 Difference]: With dead ends: 8056 [2022-11-19 07:26:13,559 INFO L226 Difference]: Without dead ends: 8048 [2022-11-19 07:26:13,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:26:13,563 INFO L413 NwaCegarLoop]: 1639 mSDtfsCounter, 1568 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:13,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 3673 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 07:26:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2022-11-19 07:26:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 7446. [2022-11-19 07:26:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 4646 states have (on average 1.318338355574688) internal successors, (6125), 4688 states have internal predecessors, (6125), 2443 states have call successors, (2443), 358 states have call predecessors, (2443), 356 states have return successors, (2444), 2428 states have call predecessors, (2444), 2441 states have call successors, (2444) [2022-11-19 07:26:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 11012 transitions. [2022-11-19 07:26:14,397 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 11012 transitions. Word has length 44 [2022-11-19 07:26:14,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:14,398 INFO L495 AbstractCegarLoop]: Abstraction has 7446 states and 11012 transitions. [2022-11-19 07:26:14,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 07:26:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 11012 transitions. [2022-11-19 07:26:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:26:14,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:14,401 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:14,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:26:14,401 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:26:14,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2014614128, now seen corresponding path program 1 times [2022-11-19 07:26:14,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:14,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223455913] [2022-11-19 07:26:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:14,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 07:26:14,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:14,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223455913] [2022-11-19 07:26:14,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223455913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:14,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:14,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:26:14,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184974380] [2022-11-19 07:26:14,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:14,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:26:14,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:14,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:26:14,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:26:14,683 INFO L87 Difference]: Start difference. First operand 7446 states and 11012 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:26:18,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:18,174 INFO L93 Difference]: Finished difference Result 10170 states and 15327 transitions. [2022-11-19 07:26:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:26:18,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2022-11-19 07:26:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:18,220 INFO L225 Difference]: With dead ends: 10170 [2022-11-19 07:26:18,220 INFO L226 Difference]: Without dead ends: 10164 [2022-11-19 07:26:18,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:26:18,231 INFO L413 NwaCegarLoop]: 1786 mSDtfsCounter, 974 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 4256 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:18,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 4256 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:26:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10164 states. [2022-11-19 07:26:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10164 to 7452. [2022-11-19 07:26:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 4650 states have (on average 1.3180645161290323) internal successors, (6129), 4692 states have internal predecessors, (6129), 2445 states have call successors, (2445), 358 states have call predecessors, (2445), 356 states have return successors, (2446), 2430 states have call predecessors, (2446), 2443 states have call successors, (2446) [2022-11-19 07:26:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 11020 transitions. [2022-11-19 07:26:19,068 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 11020 transitions. Word has length 47 [2022-11-19 07:26:19,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:19,069 INFO L495 AbstractCegarLoop]: Abstraction has 7452 states and 11020 transitions. [2022-11-19 07:26:19,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 07:26:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 11020 transitions. [2022-11-19 07:26:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-19 07:26:19,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:19,072 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-19 07:26:19,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:26:19,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:26:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:19,073 INFO L85 PathProgramCache]: Analyzing trace with hash -124324931, now seen corresponding path program 1 times [2022-11-19 07:26:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:19,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903215764] [2022-11-19 07:26:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:19,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:19,370 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:26:19,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:19,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903215764] [2022-11-19 07:26:19,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903215764] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:26:19,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540800975] [2022-11-19 07:26:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:19,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:19,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:19,372 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:26:19,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-19 07:26:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:20,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:26:20,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:26:20,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:26:20,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540800975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:26:20,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [475635597] [2022-11-19 07:26:20,110 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-19 07:26:20,110 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:26:20,111 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:26:20,111 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:26:20,111 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:26:21,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:21,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:26:21,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:24,472 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:26:24,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:26:24,982 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 114 treesize of output 99 [2022-11-19 07:26:25,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:25,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-19 07:26:25,680 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 114 treesize of output 99 [2022-11-19 07:26:26,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:26:27,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:26:27,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:27,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 909 treesize of output 759 [2022-11-19 07:26:27,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:26:35,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:35,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6854 treesize of output 6517 [2022-11-19 07:26:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:36,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6850 treesize of output 6513 [2022-11-19 07:26:37,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:26:37,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6855 treesize of output 6493 [2022-11-19 07:26:38,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:26:47,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:26:47,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:26:47,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:26:47,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:26:50,696 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:26:50,727 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:26:50,736 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 133 for LOIs [2022-11-19 07:26:50,789 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:26:50,800 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:27:10,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [475635597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:10,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:27:10,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [7, 6, 7] total 38 [2022-11-19 07:27:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480823223] [2022-11-19 07:27:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:10,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-19 07:27:10,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:10,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-19 07:27:10,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1218, Unknown=0, NotChecked=0, Total=1406 [2022-11-19 07:27:10,260 INFO L87 Difference]: Start difference. First operand 7452 states and 11020 transitions. Second operand has 27 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 20 states have internal predecessors, (32), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 07:27:14,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:16,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:27:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:17,041 INFO L93 Difference]: Finished difference Result 12568 states and 18643 transitions. [2022-11-19 07:27:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-19 07:27:17,042 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 20 states have internal predecessors, (32), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2022-11-19 07:27:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:17,075 INFO L225 Difference]: With dead ends: 12568 [2022-11-19 07:27:17,075 INFO L226 Difference]: Without dead ends: 7457 [2022-11-19 07:27:17,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=188, Invalid=1218, Unknown=0, NotChecked=0, Total=1406 [2022-11-19 07:27:17,095 INFO L413 NwaCegarLoop]: 1017 mSDtfsCounter, 5 mSDsluCounter, 10083 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11100 SdHoareTripleChecker+Invalid, 2346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1595 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:17,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11100 Invalid, 2346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 749 Invalid, 0 Unknown, 1595 Unchecked, 6.0s Time] [2022-11-19 07:27:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7457 states. [2022-11-19 07:27:17,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7457 to 7446. [2022-11-19 07:27:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 4646 states have (on average 1.318338355574688) internal successors, (6125), 4688 states have internal predecessors, (6125), 2444 states have call successors, (2444), 357 states have call predecessors, (2444), 355 states have return successors, (2445), 2429 states have call predecessors, (2445), 2442 states have call successors, (2445) [2022-11-19 07:27:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 11014 transitions. [2022-11-19 07:27:17,943 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 11014 transitions. Word has length 49 [2022-11-19 07:27:17,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:17,944 INFO L495 AbstractCegarLoop]: Abstraction has 7446 states and 11014 transitions. [2022-11-19 07:27:17,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 20 states have internal predecessors, (32), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 07:27:17,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 11014 transitions. [2022-11-19 07:27:17,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-19 07:27:17,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:17,948 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:17,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-19 07:27:18,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-19 07:27:18,157 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:18,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:18,157 INFO L85 PathProgramCache]: Analyzing trace with hash 480455382, now seen corresponding path program 1 times [2022-11-19 07:27:18,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:18,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182317389] [2022-11-19 07:27:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:18,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-19 07:27:18,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:18,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182317389] [2022-11-19 07:27:18,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182317389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:27:18,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:27:18,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:27:18,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669236696] [2022-11-19 07:27:18,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:27:18,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:27:18,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:18,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:27:18,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:18,614 INFO L87 Difference]: Start difference. First operand 7446 states and 11014 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:27:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:26,772 INFO L93 Difference]: Finished difference Result 10606 states and 15780 transitions. [2022-11-19 07:27:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:27:26,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-11-19 07:27:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:26,818 INFO L225 Difference]: With dead ends: 10606 [2022-11-19 07:27:26,818 INFO L226 Difference]: Without dead ends: 10603 [2022-11-19 07:27:26,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:27:26,827 INFO L413 NwaCegarLoop]: 2847 mSDtfsCounter, 2588 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 3210 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2779 SdHoareTripleChecker+Valid, 6085 SdHoareTripleChecker+Invalid, 3214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:26,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2779 Valid, 6085 Invalid, 3214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3210 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 07:27:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-11-19 07:27:27,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 10054. [2022-11-19 07:27:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10054 states, 6269 states have (on average 1.3185516031264954) internal successors, (8266), 6324 states have internal predecessors, (8266), 3319 states have call successors, (3319), 466 states have call predecessors, (3319), 465 states have return successors, (3323), 3304 states have call predecessors, (3323), 3317 states have call successors, (3323) [2022-11-19 07:27:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10054 states to 10054 states and 14908 transitions. [2022-11-19 07:27:28,046 INFO L78 Accepts]: Start accepts. Automaton has 10054 states and 14908 transitions. Word has length 48 [2022-11-19 07:27:28,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:28,047 INFO L495 AbstractCegarLoop]: Abstraction has 10054 states and 14908 transitions. [2022-11-19 07:27:28,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:27:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 10054 states and 14908 transitions. [2022-11-19 07:27:28,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-19 07:27:28,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:28,050 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:27:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 07:27:28,051 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:27:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1110357220, now seen corresponding path program 1 times [2022-11-19 07:27:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:28,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587980187] [2022-11-19 07:27:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 07:27:28,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587980187] [2022-11-19 07:27:28,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587980187] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:27:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591658704] [2022-11-19 07:27:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:28,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:27:28,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:28,235 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:27:28,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-19 07:27:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:28,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:27:28,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:27:28,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:27:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:27:29,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591658704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:27:29,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1266926489] [2022-11-19 07:27:29,065 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-19 07:27:29,065 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:27:29,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:27:29,065 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:27:29,065 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:27:29,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:29,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:27:30,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:32,056 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:27:32,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:27:32,538 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 114 treesize of output 99 [2022-11-19 07:27:32,758 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 114 treesize of output 99 [2022-11-19 07:27:32,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:33,005 INFO L217 Elim1Store]: Index analysis took 104 ms [2022-11-19 07:27:35,853 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:27:35,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:27:37,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:27:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:37,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 909 treesize of output 759 [2022-11-19 07:27:38,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:27:38,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:27:46,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:46,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6854 treesize of output 6517 [2022-11-19 07:27:47,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:47,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6859 treesize of output 6497 [2022-11-19 07:27:48,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:49,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:49,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:49,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:49,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:49,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:49,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6850 treesize of output 6513 [2022-11-19 07:27:56,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:27:58,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:27:58,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:27:58,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:27:58,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:28:05,838 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:28:05,871 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 96 for LOIs [2022-11-19 07:28:05,879 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:28:05,889 INFO L197 IcfgInterpreter]: Interpreting procedure netif_wake_queue with input of size 94 for LOIs [2022-11-19 07:28:06,009 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:28:06,021 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_get_tx_queue with input of size 96 for LOIs [2022-11-19 07:28:06,030 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:28:40,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1266926489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:40,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:28:40,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [4, 6, 7] total 48 [2022-11-19 07:28:40,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856868258] [2022-11-19 07:28:40,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:40,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-19 07:28:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:40,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-19 07:28:40,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=2039, Unknown=0, NotChecked=0, Total=2256 [2022-11-19 07:28:40,918 INFO L87 Difference]: Start difference. First operand 10054 states and 14908 transitions. Second operand has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 07:28:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:57,510 INFO L93 Difference]: Finished difference Result 10348 states and 15278 transitions. [2022-11-19 07:28:57,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-19 07:28:57,510 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 51 [2022-11-19 07:28:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:57,549 INFO L225 Difference]: With dead ends: 10348 [2022-11-19 07:28:57,549 INFO L226 Difference]: Without dead ends: 10341 [2022-11-19 07:28:57,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 105 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2022-11-19 07:28:57,558 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 164 mSDsluCounter, 15700 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 16791 SdHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1813 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:57,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 16791 Invalid, 4121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2300 Invalid, 0 Unknown, 1813 Unchecked, 12.3s Time] [2022-11-19 07:28:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10341 states. [2022-11-19 07:28:58,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10341 to 10317. [2022-11-19 07:28:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10317 states, 6424 states have (on average 1.3147571606475716) internal successors, (8446), 6483 states have internal predecessors, (8446), 3395 states have call successors, (3395), 498 states have call predecessors, (3395), 497 states have return successors, (3399), 3378 states have call predecessors, (3399), 3393 states have call successors, (3399) [2022-11-19 07:28:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 15240 transitions. [2022-11-19 07:28:58,662 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 15240 transitions. Word has length 51 [2022-11-19 07:28:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:58,662 INFO L495 AbstractCegarLoop]: Abstraction has 10317 states and 15240 transitions. [2022-11-19 07:28:58,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 07:28:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 15240 transitions. [2022-11-19 07:28:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 07:28:58,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:58,667 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:58,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:58,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-19 07:28:58,876 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash -780865625, now seen corresponding path program 1 times [2022-11-19 07:28:58,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:58,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36731871] [2022-11-19 07:28:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 07:28:59,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:59,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36731871] [2022-11-19 07:28:59,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36731871] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:28:59,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246907155] [2022-11-19 07:28:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:28:59,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:59,061 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:28:59,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-19 07:28:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:59,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:28:59,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:28:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:28:59,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:28:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:28:59,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246907155] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:28:59,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028707240] [2022-11-19 07:28:59,878 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-19 07:28:59,878 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:28:59,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:28:59,879 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:28:59,879 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:29:00,469 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 114 treesize of output 99 [2022-11-19 07:29:00,569 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 114 treesize of output 99 [2022-11-19 07:29:00,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:00,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:29:01,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:02,953 INFO L321 Elim1Store]: treesize reduction 560, result has 45.5 percent of original size [2022-11-19 07:29:02,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1487 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 54 case distinctions, treesize of input 282 treesize of output 642 [2022-11-19 07:29:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:03,722 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-19 07:29:06,531 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:29:06,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:29:08,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:29:08,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 823 treesize of output 668 [2022-11-19 07:29:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:08,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 909 treesize of output 759 [2022-11-19 07:29:09,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:29:17,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:17,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6854 treesize of output 6517 [2022-11-19 07:29:18,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:18,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 6859 treesize of output 6497 [2022-11-19 07:29:19,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:29:19,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 6850 treesize of output 6513 [2022-11-19 07:29:27,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2022-11-19 07:29:29,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:29:29,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:29:29,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 07:29:29,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:29:37,797 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 100 for LOIs [2022-11-19 07:29:37,831 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_return_value with input of size 97 for LOIs [2022-11-19 07:29:37,840 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 97 for LOIs [2022-11-19 07:29:37,852 INFO L197 IcfgInterpreter]: Interpreting procedure netif_wake_queue with input of size 95 for LOIs [2022-11-19 07:29:37,982 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 106 for LOIs [2022-11-19 07:29:37,991 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_get_tx_queue with input of size 97 for LOIs [2022-11-19 07:29:38,001 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:30:13,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1028707240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:13,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:30:13,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [4, 6, 7] total 49 [2022-11-19 07:30:13,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891586479] [2022-11-19 07:30:13,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:13,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-19 07:30:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:13,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-19 07:30:13,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-11-19 07:30:13,629 INFO L87 Difference]: Start difference. First operand 10317 states and 15240 transitions. Second operand has 37 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 07:30:25,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:29,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:29,567 INFO L93 Difference]: Finished difference Result 10575 states and 15569 transitions. [2022-11-19 07:30:29,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-19 07:30:29,568 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 52 [2022-11-19 07:30:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:29,602 INFO L225 Difference]: With dead ends: 10575 [2022-11-19 07:30:29,603 INFO L226 Difference]: Without dead ends: 10568 [2022-11-19 07:30:29,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=236, Invalid=2314, Unknown=0, NotChecked=0, Total=2550 [2022-11-19 07:30:29,609 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 157 mSDsluCounter, 15265 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 16379 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1233 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:29,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 16379 Invalid, 3757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 2495 Invalid, 0 Unknown, 1233 Unchecked, 12.6s Time] [2022-11-19 07:30:29,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-11-19 07:30:30,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 10559. [2022-11-19 07:30:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10559 states, 6566 states have (on average 1.3119098385622905) internal successors, (8614), 6627 states have internal predecessors, (8614), 3466 states have call successors, (3466), 527 states have call predecessors, (3466), 526 states have return successors, (3470), 3449 states have call predecessors, (3470), 3464 states have call successors, (3470) [2022-11-19 07:30:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10559 states to 10559 states and 15550 transitions. [2022-11-19 07:30:30,689 INFO L78 Accepts]: Start accepts. Automaton has 10559 states and 15550 transitions. Word has length 52 [2022-11-19 07:30:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:30,690 INFO L495 AbstractCegarLoop]: Abstraction has 10559 states and 15550 transitions. [2022-11-19 07:30:30,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 29 states have (on average 1.206896551724138) internal successors, (35), 27 states have internal predecessors, (35), 6 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 07:30:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10559 states and 15550 transitions. [2022-11-19 07:30:30,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 07:30:30,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:30,697 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-19 07:30:30,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-19 07:30:30,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:30,900 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:30:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1822634202, now seen corresponding path program 1 times [2022-11-19 07:30:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:30,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197041291] [2022-11-19 07:30:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:30,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:30:31,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:31,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197041291] [2022-11-19 07:30:31,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197041291] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:30:31,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507165881] [2022-11-19 07:30:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:31,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:30:31,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:30:31,119 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:30:31,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8297b58a-d67c-4a52-9796-1a2669f21275/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-19 07:30:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:31,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:30:31,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:30:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:30:31,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:30:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:30:31,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507165881] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:30:31,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [831630687] [2022-11-19 07:30:31,805 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-19 07:30:31,805 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:30:31,806 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:30:31,806 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:30:31,806 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:30:32,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,188 INFO L321 Elim1Store]: treesize reduction 972, result has 33.4 percent of original size [2022-11-19 07:30:35,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 57 select indices, 57 select index equivalence classes, 1542 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 108 case distinctions, treesize of input 292 treesize of output 673 [2022-11-19 07:30:35,537 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 114 treesize of output 99 [2022-11-19 07:30:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:35,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 770 treesize of output 625 [2022-11-19 07:30:36,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:30:36,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 55 select indices, 55 select index equivalence classes, 1541 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 446 [2022-11-19 07:30:36,542 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 114 treesize of output 99