./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:54:20,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:54:20,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:54:20,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:54:20,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:54:20,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:54:20,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:54:20,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:54:20,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:54:20,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:54:20,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:54:20,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:54:20,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:54:20,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:54:20,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:54:20,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:54:20,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:54:20,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:54:20,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:54:20,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:54:20,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:54:20,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:54:20,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:54:20,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:54:20,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:54:20,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:54:20,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:54:20,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:54:20,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:54:20,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:54:20,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:54:20,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:54:20,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:54:20,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:54:20,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:54:20,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:54:20,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:54:20,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:54:20,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:54:20,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:54:20,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:54:20,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:54:20,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:54:20,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:54:20,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:54:20,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:54:20,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:54:20,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:54:20,323 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:54:20,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:54:20,324 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:54:20,324 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:54:20,325 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:54:20,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:54:20,326 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:54:20,326 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:54:20,326 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:54:20,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:54:20,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:54:20,327 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:54:20,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:54:20,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:54:20,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:54:20,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:54:20,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:54:20,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:54:20,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:54:20,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:54:20,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:54:20,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:54:20,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:54:20,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:20,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:54:20,334 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:54:20,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:54:20,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:54:20,335 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:54:20,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:54:20,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:54:20,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:54:20,336 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_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 [2022-11-22 01:54:20,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:54:20,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:54:20,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:54:20,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:54:20,711 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:54:20,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-22 01:54:24,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:54:25,643 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:54:25,644 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-22 01:54:25,734 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/data/8a1835c2b/16742ed50d104d25aba6f9d00bd3ce17/FLAG085bae924 [2022-11-22 01:54:25,761 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/data/8a1835c2b/16742ed50d104d25aba6f9d00bd3ce17 [2022-11-22 01:54:25,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:54:25,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:54:25,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:25,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:54:25,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:54:25,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:25,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712914d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:25, skipping insertion in model container [2022-11-22 01:54:25,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:54:25" (1/1) ... [2022-11-22 01:54:25,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:54:26,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:54:27,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2022-11-22 01:54:29,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:30,118 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:54:30,385 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2022-11-22 01:54:30,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:54:31,057 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:54:31,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31 WrapperNode [2022-11-22 01:54:31,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:54:31,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:31,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:54:31,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:54:31,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:31,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:31,668 INFO L138 Inliner]: procedures = 382, calls = 4336, calls flagged for inlining = 180, calls inlined = 177, statements flattened = 8035 [2022-11-22 01:54:31,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:54:31,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:54:31,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:54:31,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:54:31,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:31,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:31,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:31,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:32,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:32,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:32,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:32,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:32,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:54:32,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:54:32,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:54:32,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:54:32,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (1/1) ... [2022-11-22 01:54:32,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:54:32,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:32,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:54:32,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:54:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-22 01:54:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-22 01:54:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-11-22 01:54:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-11-22 01:54:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-22 01:54:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-22 01:54:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:54:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:54:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-22 01:54:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-22 01:54:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-22 01:54:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-22 01:54:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-22 01:54:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-22 01:54:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:54:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:54:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-22 01:54:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-22 01:54:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:54:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:54:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:54:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:54:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-22 01:54:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-22 01:54:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:54:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:54:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-22 01:54:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-22 01:54:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-11-22 01:54:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-11-22 01:54:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-11-22 01:54:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-11-22 01:54:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:54:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:54:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-22 01:54:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-22 01:54:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-22 01:54:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-22 01:54:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-22 01:54:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-22 01:54:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-22 01:54:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-22 01:54:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-22 01:54:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-22 01:54:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-22 01:54:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-22 01:54:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-22 01:54:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-22 01:54:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-22 01:54:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-22 01:54:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-22 01:54:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-22 01:54:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-22 01:54:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-22 01:54:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-22 01:54:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-22 01:54:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-22 01:54:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-22 01:54:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-22 01:54:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-22 01:54:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:54:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:54:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:54:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:54:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:54:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:54:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-22 01:54:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-22 01:54:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:54:32,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:54:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-22 01:54:32,510 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-22 01:54:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:54:32,511 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:54:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-22 01:54:32,513 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-22 01:54:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-22 01:54:32,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-22 01:54:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:54:32,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:54:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:54:32,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:54:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:54:32,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:54:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-22 01:54:32,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-22 01:54:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-22 01:54:32,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-22 01:54:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:54:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-22 01:54:32,518 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-22 01:54:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-22 01:54:32,519 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-22 01:54:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-22 01:54:32,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-22 01:54:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:54:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-22 01:54:32,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-22 01:54:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-22 01:54:32,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-22 01:54:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-22 01:54:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-22 01:54:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-22 01:54:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-22 01:54:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-22 01:54:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-22 01:54:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-22 01:54:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:54:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:54:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:54:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:54:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:54:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:54:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-22 01:54:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-22 01:54:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-11-22 01:54:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-11-22 01:54:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-22 01:54:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-22 01:54:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:54:32,541 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:54:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_14 [2022-11-22 01:54:32,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_14 [2022-11-22 01:54:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:54:32,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:54:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-22 01:54:32,543 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-22 01:54:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-22 01:54:32,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-22 01:54:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:54:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:54:32,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:54:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-22 01:54:32,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-22 01:54:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:54:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:54:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:54:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:54:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-22 01:54:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-22 01:54:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:54:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-22 01:54:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-22 01:54:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-22 01:54:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-22 01:54:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-22 01:54:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-22 01:54:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:54:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:54:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:54:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-22 01:54:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-22 01:54:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-22 01:54:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-22 01:54:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:54:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:54:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:54:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:54:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-22 01:54:32,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-22 01:54:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-22 01:54:32,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-22 01:54:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-22 01:54:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-22 01:54:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-22 01:54:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-22 01:54:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-22 01:54:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-22 01:54:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-22 01:54:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-22 01:54:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-22 01:54:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-22 01:54:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-22 01:54:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-22 01:54:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:54:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:54:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:54:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:54:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-22 01:54:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-22 01:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-22 01:54:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-22 01:54:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-22 01:54:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-22 01:54:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:54:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:54:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-22 01:54:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-22 01:54:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-22 01:54:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-22 01:54:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-22 01:54:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-22 01:54:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-22 01:54:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-22 01:54:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-22 01:54:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:54:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:54:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:54:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:54:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-22 01:54:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-22 01:54:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-22 01:54:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-22 01:54:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:54:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:54:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:54:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-22 01:54:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-22 01:54:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-11-22 01:54:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-11-22 01:54:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:54:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:54:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-22 01:54:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-22 01:54:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-22 01:54:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-22 01:54:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-11-22 01:54:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-11-22 01:54:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-22 01:54:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-22 01:54:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-22 01:54:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-22 01:54:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-22 01:54:32,564 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-22 01:54:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-22 01:54:32,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-22 01:54:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:54:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:54:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:54:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:54:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:54:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:54:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-22 01:54:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-22 01:54:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-22 01:54:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-22 01:54:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-22 01:54:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-22 01:54:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-22 01:54:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-22 01:54:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-22 01:54:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-22 01:54:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-22 01:54:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-22 01:54:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:54:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-22 01:54:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-22 01:54:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-22 01:54:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-22 01:54:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-22 01:54:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-22 01:54:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-22 01:54:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-22 01:54:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-22 01:54:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-22 01:54:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 01:54:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 01:54:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-22 01:54:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:54:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:54:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-22 01:54:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-22 01:54:33,819 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:54:33,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:54:34,402 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:54:47,144 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:54:50,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:54:50,378 INFO L300 CfgBuilder]: Removed 81 assume(true) statements. [2022-11-22 01:54:50,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:50 BoogieIcfgContainer [2022-11-22 01:54:50,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:54:50,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:54:50,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:54:50,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:54:50,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:54:25" (1/3) ... [2022-11-22 01:54:50,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783939ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:50, skipping insertion in model container [2022-11-22 01:54:50,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:54:31" (2/3) ... [2022-11-22 01:54:50,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783939ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:54:50, skipping insertion in model container [2022-11-22 01:54:50,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:54:50" (3/3) ... [2022-11-22 01:54:50,405 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-22 01:54:50,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:54:50,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:54:50,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:54:50,646 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;@26dba1a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:54:50,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:54:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 3174 states, 1626 states have (on average 1.3105781057810577) internal successors, (2131), 1781 states have internal predecessors, (2131), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) [2022-11-22 01:54:50,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 01:54:50,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:50,699 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:50,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:50,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1326524556, now seen corresponding path program 1 times [2022-11-22 01:54:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:50,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585601026] [2022-11-22 01:54:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-22 01:54:52,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:52,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585601026] [2022-11-22 01:54:52,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585601026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:52,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:52,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:52,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680042566] [2022-11-22 01:54:52,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:52,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:52,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:52,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:52,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:52,227 INFO L87 Difference]: Start difference. First operand has 3174 states, 1626 states have (on average 1.3105781057810577) internal successors, (2131), 1781 states have internal predecessors, (2131), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-22 01:54:54,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:54:56,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:54:59,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:00,763 INFO L93 Difference]: Finished difference Result 8979 states and 14569 transitions. [2022-11-22 01:55:00,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 70 [2022-11-22 01:55:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:00,873 INFO L225 Difference]: With dead ends: 8979 [2022-11-22 01:55:00,874 INFO L226 Difference]: Without dead ends: 5786 [2022-11-22 01:55:00,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:00,927 INFO L413 NwaCegarLoop]: 5816 mSDtfsCounter, 4557 mSDsluCounter, 4415 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 10231 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:00,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4560 Valid, 10231 Invalid, 472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:55:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5786 states. [2022-11-22 01:55:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5786 to 5785. [2022-11-22 01:55:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 2745 states have (on average 1.2932604735883424) internal successors, (3550), 2886 states have internal predecessors, (3550), 2799 states have call successors, (2799), 241 states have call predecessors, (2799), 240 states have return successors, (2801), 2727 states have call predecessors, (2801), 2798 states have call successors, (2801) [2022-11-22 01:55:01,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 9150 transitions. [2022-11-22 01:55:01,948 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 9150 transitions. Word has length 70 [2022-11-22 01:55:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:01,949 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 9150 transitions. [2022-11-22 01:55:01,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-22 01:55:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 9150 transitions. [2022-11-22 01:55:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:55:01,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:01,962 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:01,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:55:01,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:01,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash 576342351, now seen corresponding path program 1 times [2022-11-22 01:55:01,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:01,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145652492] [2022-11-22 01:55:01,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:01,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-22 01:55:03,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:03,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145652492] [2022-11-22 01:55:03,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145652492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:03,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:03,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:55:03,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469381429] [2022-11-22 01:55:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:55:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:55:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:55:03,266 INFO L87 Difference]: Start difference. First operand 5785 states and 9150 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:55:06,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:09,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:12,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:14,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:14,114 INFO L93 Difference]: Finished difference Result 11542 states and 18338 transitions. [2022-11-22 01:55:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:55:14,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-11-22 01:55:14,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:14,260 INFO L225 Difference]: With dead ends: 11542 [2022-11-22 01:55:14,260 INFO L226 Difference]: Without dead ends: 11537 [2022-11-22 01:55:14,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:14,279 INFO L413 NwaCegarLoop]: 6171 mSDtfsCounter, 4571 mSDsluCounter, 10567 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4571 SdHoareTripleChecker+Valid, 16738 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:14,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4571 Valid, 16738 Invalid, 750 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 747 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2022-11-22 01:55:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11537 states. [2022-11-22 01:55:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11537 to 11528. [2022-11-22 01:55:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11528 states, 5463 states have (on average 1.2936115687351273) internal successors, (7067), 5746 states have internal predecessors, (7067), 5584 states have call successors, (5584), 481 states have call predecessors, (5584), 480 states have return successors, (5669), 5440 states have call predecessors, (5669), 5583 states have call successors, (5669) [2022-11-22 01:55:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11528 states to 11528 states and 18320 transitions. [2022-11-22 01:55:15,869 INFO L78 Accepts]: Start accepts. Automaton has 11528 states and 18320 transitions. Word has length 73 [2022-11-22 01:55:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:15,870 INFO L495 AbstractCegarLoop]: Abstraction has 11528 states and 18320 transitions. [2022-11-22 01:55:15,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:55:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 11528 states and 18320 transitions. [2022-11-22 01:55:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-22 01:55:15,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:15,887 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:15,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:55:15,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1129184013, now seen corresponding path program 1 times [2022-11-22 01:55:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:15,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987046737] [2022-11-22 01:55:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:15,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:16,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:16,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987046737] [2022-11-22 01:55:16,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:55:16,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750400866] [2022-11-22 01:55:16,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:16,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:16,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:16,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:16,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:55:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:18,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:55:18,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-22 01:55:18,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:55:18,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750400866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:18,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:18,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:55:18,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303155870] [2022-11-22 01:55:18,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:18,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:18,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:18,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:18,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:18,688 INFO L87 Difference]: Start difference. First operand 11528 states and 18320 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:55:22,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:25,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:26,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:26,290 INFO L93 Difference]: Finished difference Result 31734 states and 50662 transitions. [2022-11-22 01:55:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:26,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2022-11-22 01:55:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:26,516 INFO L225 Difference]: With dead ends: 31734 [2022-11-22 01:55:26,517 INFO L226 Difference]: Without dead ends: 20225 [2022-11-22 01:55:26,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:26,649 INFO L413 NwaCegarLoop]: 5478 mSDtfsCounter, 3504 mSDsluCounter, 4301 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 9779 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:26,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 9779 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 528 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-11-22 01:55:26,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20225 states. [2022-11-22 01:55:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20225 to 20218. [2022-11-22 01:55:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20218 states, 9335 states have (on average 1.2963042313872524) internal successors, (12101), 9784 states have internal predecessors, (12101), 10026 states have call successors, (10026), 857 states have call predecessors, (10026), 856 states have return successors, (10157), 9824 states have call predecessors, (10157), 10025 states have call successors, (10157) [2022-11-22 01:55:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20218 states to 20218 states and 32284 transitions. [2022-11-22 01:55:29,396 INFO L78 Accepts]: Start accepts. Automaton has 20218 states and 32284 transitions. Word has length 130 [2022-11-22 01:55:29,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:29,398 INFO L495 AbstractCegarLoop]: Abstraction has 20218 states and 32284 transitions. [2022-11-22 01:55:29,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 01:55:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 20218 states and 32284 transitions. [2022-11-22 01:55:29,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-22 01:55:29,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:29,427 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:29,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:29,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:29,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash 623055130, now seen corresponding path program 1 times [2022-11-22 01:55:29,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:29,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202451840] [2022-11-22 01:55:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:29,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:29,893 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:29,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528172439] [2022-11-22 01:55:29,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:29,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:29,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:29,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:29,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:55:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:32,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 5009 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:55:32,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:55:32,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:55:32,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:32,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202451840] [2022-11-22 01:55:32,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:32,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528172439] [2022-11-22 01:55:32,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528172439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:32,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:32,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:55:32,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694567001] [2022-11-22 01:55:32,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:32,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:32,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:32,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:32,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:32,695 INFO L87 Difference]: Start difference. First operand 20218 states and 32284 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:55:41,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:55:46,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:55:54,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:54,486 INFO L93 Difference]: Finished difference Result 60587 states and 96788 transitions. [2022-11-22 01:55:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:55:54,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2022-11-22 01:55:54,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:54,928 INFO L225 Difference]: With dead ends: 60587 [2022-11-22 01:55:54,928 INFO L226 Difference]: Without dead ends: 40388 [2022-11-22 01:55:55,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:55:55,127 INFO L413 NwaCegarLoop]: 6276 mSDtfsCounter, 4484 mSDsluCounter, 11318 mSDsCounter, 0 mSdLazyCounter, 6716 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 17594 SdHoareTripleChecker+Invalid, 6733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 6716 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:55,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 17594 Invalid, 6733 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 6716 Invalid, 2 Unknown, 0 Unchecked, 19.0s Time] [2022-11-22 01:55:55,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40388 states. [2022-11-22 01:56:00,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40388 to 40334. [2022-11-22 01:56:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40334 states, 18603 states have (on average 1.2973176369402784) internal successors, (24134), 19534 states have internal predecessors, (24134), 20014 states have call successors, (20014), 1709 states have call predecessors, (20014), 1716 states have return successors, (20311), 19578 states have call predecessors, (20311), 20013 states have call successors, (20311) [2022-11-22 01:56:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40334 states to 40334 states and 64459 transitions. [2022-11-22 01:56:00,867 INFO L78 Accepts]: Start accepts. Automaton has 40334 states and 64459 transitions. Word has length 151 [2022-11-22 01:56:00,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:00,869 INFO L495 AbstractCegarLoop]: Abstraction has 40334 states and 64459 transitions. [2022-11-22 01:56:00,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:56:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 40334 states and 64459 transitions. [2022-11-22 01:56:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-22 01:56:01,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:01,208 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:01,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 01:56:01,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:01,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:56:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:01,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1882279283, now seen corresponding path program 1 times [2022-11-22 01:56:01,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:01,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320095510] [2022-11-22 01:56:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:01,663 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:56:01,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629784886] [2022-11-22 01:56:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:01,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:01,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:01,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:56:01,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:56:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:03,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 5013 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:56:03,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:56:04,294 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:56:04,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:56:04,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:04,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320095510] [2022-11-22 01:56:04,295 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:56:04,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629784886] [2022-11-22 01:56:04,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629784886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:04,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:04,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:56:04,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047946183] [2022-11-22 01:56:04,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:04,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:56:04,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:04,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:56:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:56:04,300 INFO L87 Difference]: Start difference. First operand 40334 states and 64459 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:56:10,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:15,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:56:17,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:26,117 INFO L93 Difference]: Finished difference Result 80735 states and 129003 transitions. [2022-11-22 01:56:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:56:26,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2022-11-22 01:56:26,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:26,920 INFO L225 Difference]: With dead ends: 80735 [2022-11-22 01:56:26,921 INFO L226 Difference]: Without dead ends: 60536 [2022-11-22 01:56:27,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:56:27,099 INFO L413 NwaCegarLoop]: 5799 mSDtfsCounter, 4521 mSDsluCounter, 8899 mSDsCounter, 0 mSdLazyCounter, 6535 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 14698 SdHoareTripleChecker+Invalid, 6552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 6535 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:27,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 14698 Invalid, 6552 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 6535 Invalid, 2 Unknown, 0 Unchecked, 18.4s Time] [2022-11-22 01:56:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60536 states. [2022-11-22 01:56:32,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60536 to 60518. [2022-11-22 01:56:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60518 states, 27923 states have (on average 1.2971027468395229) internal successors, (36219), 29304 states have internal predecessors, (36219), 30018 states have call successors, (30018), 2561 states have call predecessors, (30018), 2576 states have return successors, (30461), 29380 states have call predecessors, (30461), 30017 states have call successors, (30461) [2022-11-22 01:56:33,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60518 states to 60518 states and 96698 transitions. [2022-11-22 01:56:33,933 INFO L78 Accepts]: Start accepts. Automaton has 60518 states and 96698 transitions. Word has length 153 [2022-11-22 01:56:33,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:33,934 INFO L495 AbstractCegarLoop]: Abstraction has 60518 states and 96698 transitions. [2022-11-22 01:56:33,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:56:33,935 INFO L276 IsEmpty]: Start isEmpty. Operand 60518 states and 96698 transitions. [2022-11-22 01:56:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 01:56:33,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:34,000 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:34,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:56:34,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:34,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:56:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1416656755, now seen corresponding path program 1 times [2022-11-22 01:56:34,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:34,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319217443] [2022-11-22 01:56:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:34,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:34,386 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:56:34,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106285874] [2022-11-22 01:56:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:34,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:34,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:34,388 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:56:34,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:56:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:36,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 5015 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:56:36,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:56:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:56:37,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:56:37,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:37,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319217443] [2022-11-22 01:56:37,058 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:56:37,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106285874] [2022-11-22 01:56:37,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106285874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:37,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:37,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:56:37,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22548238] [2022-11-22 01:56:37,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:37,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:56:37,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:37,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:56:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:56:37,063 INFO L87 Difference]: Start difference. First operand 60518 states and 96698 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:56:43,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:56:46,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:56:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:55,675 INFO L93 Difference]: Finished difference Result 100951 states and 161254 transitions. [2022-11-22 01:56:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:56:55,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2022-11-22 01:56:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:56,250 INFO L225 Difference]: With dead ends: 100951 [2022-11-22 01:56:56,250 INFO L226 Difference]: Without dead ends: 60568 [2022-11-22 01:56:56,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:56:56,588 INFO L413 NwaCegarLoop]: 5795 mSDtfsCounter, 4485 mSDsluCounter, 10368 mSDsCounter, 0 mSdLazyCounter, 6524 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 16163 SdHoareTripleChecker+Invalid, 6541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 6524 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:56,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4494 Valid, 16163 Invalid, 6541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 6524 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2022-11-22 01:56:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60568 states. [2022-11-22 01:57:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60568 to 60550. [2022-11-22 01:57:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60550 states, 27939 states have (on average 1.2969326031711943) internal successors, (36235), 29324 states have internal predecessors, (36235), 30018 states have call successors, (30018), 2573 states have call predecessors, (30018), 2592 states have return successors, (30445), 29380 states have call predecessors, (30445), 30017 states have call successors, (30445) [2022-11-22 01:57:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60550 states to 60550 states and 96698 transitions. [2022-11-22 01:57:01,894 INFO L78 Accepts]: Start accepts. Automaton has 60550 states and 96698 transitions. Word has length 154 [2022-11-22 01:57:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:01,895 INFO L495 AbstractCegarLoop]: Abstraction has 60550 states and 96698 transitions. [2022-11-22 01:57:01,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:57:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 60550 states and 96698 transitions. [2022-11-22 01:57:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-22 01:57:01,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:01,922 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:01,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:02,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:02,144 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:02,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:02,145 INFO L85 PathProgramCache]: Analyzing trace with hash 451962874, now seen corresponding path program 1 times [2022-11-22 01:57:02,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:02,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995048232] [2022-11-22 01:57:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:02,321 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:57:02,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523376382] [2022-11-22 01:57:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:02,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:02,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:02,324 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:02,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:57:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:04,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 5011 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:57:04,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:57:04,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:04,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:04,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995048232] [2022-11-22 01:57:04,713 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:57:04,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523376382] [2022-11-22 01:57:04,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523376382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:04,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:04,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:57:04,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108475986] [2022-11-22 01:57:04,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:04,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:04,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:04,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:04,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:57:04,715 INFO L87 Difference]: Start difference. First operand 60550 states and 96698 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:57:11,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:12,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:16,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:57:19,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:20,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:57:28,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:28,224 INFO L93 Difference]: Finished difference Result 100983 states and 161242 transitions. [2022-11-22 01:57:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:57:28,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2022-11-22 01:57:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:28,809 INFO L225 Difference]: With dead ends: 100983 [2022-11-22 01:57:28,810 INFO L226 Difference]: Without dead ends: 60392 [2022-11-22 01:57:29,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:57:29,042 INFO L413 NwaCegarLoop]: 5799 mSDtfsCounter, 4500 mSDsluCounter, 8903 mSDsCounter, 0 mSdLazyCounter, 6536 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 14702 SdHoareTripleChecker+Invalid, 6553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 6536 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:29,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4507 Valid, 14702 Invalid, 6553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 6536 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2022-11-22 01:57:29,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60392 states. [2022-11-22 01:57:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60392 to 60374. [2022-11-22 01:57:33,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60374 states, 27843 states have (on average 1.2965197715763388) internal successors, (36099), 29196 states have internal predecessors, (36099), 29954 states have call successors, (29954), 2565 states have call predecessors, (29954), 2576 states have return successors, (30345), 29316 states have call predecessors, (30345), 29953 states have call successors, (30345) [2022-11-22 01:57:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60374 states to 60374 states and 96398 transitions. [2022-11-22 01:57:34,337 INFO L78 Accepts]: Start accepts. Automaton has 60374 states and 96398 transitions. Word has length 152 [2022-11-22 01:57:34,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:34,338 INFO L495 AbstractCegarLoop]: Abstraction has 60374 states and 96398 transitions. [2022-11-22 01:57:34,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:57:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 60374 states and 96398 transitions. [2022-11-22 01:57:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-22 01:57:34,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:34,369 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:34,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:34,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:57:34,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:34,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:34,585 INFO L85 PathProgramCache]: Analyzing trace with hash -736756490, now seen corresponding path program 1 times [2022-11-22 01:57:34,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:34,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891450463] [2022-11-22 01:57:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:34,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:34,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891450463] [2022-11-22 01:57:34,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:57:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953089124] [2022-11-22 01:57:34,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:34,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:34,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:34,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:34,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:57:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:36,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 5054 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:57:36,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:57:37,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:37,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953089124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:37,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:37,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:57:37,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260512109] [2022-11-22 01:57:37,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:37,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:37,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:37,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:37,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:57:37,167 INFO L87 Difference]: Start difference. First operand 60374 states and 96398 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:57:47,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:57:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:55,361 INFO L93 Difference]: Finished difference Result 120785 states and 192898 transitions. [2022-11-22 01:57:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:57:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 167 [2022-11-22 01:57:55,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:55,744 INFO L225 Difference]: With dead ends: 120785 [2022-11-22 01:57:55,744 INFO L226 Difference]: Without dead ends: 60430 [2022-11-22 01:57:56,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:57:56,072 INFO L413 NwaCegarLoop]: 4364 mSDtfsCounter, 4493 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 6312 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4500 SdHoareTripleChecker+Valid, 7446 SdHoareTripleChecker+Invalid, 6341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6312 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:56,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4500 Valid, 7446 Invalid, 6341 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 6312 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2022-11-22 01:57:56,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60430 states. [2022-11-22 01:58:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60430 to 60430. [2022-11-22 01:58:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60430 states, 27871 states have (on average 1.2962218793728248) internal successors, (36127), 29249 states have internal predecessors, (36127), 29954 states have call successors, (29954), 2568 states have call predecessors, (29954), 2604 states have return successors, (30411), 29316 states have call predecessors, (30411), 29953 states have call successors, (30411) [2022-11-22 01:58:01,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60430 states to 60430 states and 96492 transitions. [2022-11-22 01:58:01,169 INFO L78 Accepts]: Start accepts. Automaton has 60430 states and 96492 transitions. Word has length 167 [2022-11-22 01:58:01,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:01,170 INFO L495 AbstractCegarLoop]: Abstraction has 60430 states and 96492 transitions. [2022-11-22 01:58:01,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:58:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 60430 states and 96492 transitions. [2022-11-22 01:58:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-22 01:58:01,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:01,204 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:01,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:01,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:01,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:58:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:01,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2019392852, now seen corresponding path program 1 times [2022-11-22 01:58:01,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:01,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736795154] [2022-11-22 01:58:01,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:01,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:02,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:02,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736795154] [2022-11-22 01:58:02,110 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-22 01:58:02,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112018448] [2022-11-22 01:58:02,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:02,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:02,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:02,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:58:02,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_062f4a66-38ed-468a-bac2-ebe51fe4e4fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:58:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:03,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 5056 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:58:03,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-22 01:58:04,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:04,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112018448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:04,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:04,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:58:04,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284605523] [2022-11-22 01:58:04,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:04,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:04,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:04,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:04,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:58:04,185 INFO L87 Difference]: Start difference. First operand 60430 states and 96492 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:58:09,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:58:14,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:58:21,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:21,738 INFO L93 Difference]: Finished difference Result 120873 states and 192980 transitions. [2022-11-22 01:58:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:58:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 168 [2022-11-22 01:58:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:22,072 INFO L225 Difference]: With dead ends: 120873 [2022-11-22 01:58:22,072 INFO L226 Difference]: Without dead ends: 60462 [2022-11-22 01:58:22,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:58:22,344 INFO L413 NwaCegarLoop]: 4364 mSDtfsCounter, 4479 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 6293 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4488 SdHoareTripleChecker+Valid, 7488 SdHoareTripleChecker+Invalid, 6323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6293 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:22,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4488 Valid, 7488 Invalid, 6323 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 6293 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2022-11-22 01:58:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60462 states.