./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta --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 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- 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-dbf71c6-m [2022-10-17 17:15:06,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:15:06,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:15:07,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:15:07,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:15:07,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:15:07,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:15:07,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:15:07,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:15:07,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:15:07,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:15:07,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:15:07,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:15:07,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:15:07,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:15:07,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:15:07,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:15:07,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:15:07,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:15:07,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:15:07,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:15:07,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:15:07,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:15:07,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:15:07,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:15:07,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:15:07,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:15:07,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:15:07,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:15:07,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:15:07,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:15:07,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:15:07,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:15:07,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:15:07,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:15:07,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:15:07,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:15:07,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:15:07,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:15:07,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:15:07,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:15:07,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:15:07,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:15:07,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:15:07,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:15:07,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:15:07,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:15:07,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:15:07,154 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:15:07,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:15:07,154 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:15:07,155 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:15:07,156 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:15:07,156 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:15:07,156 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:15:07,157 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:15:07,157 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:15:07,157 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:15:07,157 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:15:07,158 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:15:07,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:15:07,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:15:07,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:15:07,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:15:07,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:15:07,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:15:07,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:15:07,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:15:07,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:15:07,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:15:07,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:15:07,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:15:07,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:15:07,169 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:15:07,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:15:07,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:15:07,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:15:07,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:15:07,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:15:07,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:15:07,171 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_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2022-10-17 17:15:07,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:15:07,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:15:07,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:15:07,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:15:07,468 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:15:07,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-10-17 17:15:07,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/data/ac40036b7/71f0153258844be6b4d4e7d8b188ccab/FLAGbcaf7d7c0 [2022-10-17 17:15:08,550 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:15:08,551 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-10-17 17:15:08,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/data/ac40036b7/71f0153258844be6b4d4e7d8b188ccab/FLAGbcaf7d7c0 [2022-10-17 17:15:08,878 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/data/ac40036b7/71f0153258844be6b4d4e7d8b188ccab [2022-10-17 17:15:08,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:15:08,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:15:08,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:15:08,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:15:08,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:15:08,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:15:08" (1/1) ... [2022-10-17 17:15:08,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5795763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:08, skipping insertion in model container [2022-10-17 17:15:08,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:15:08" (1/1) ... [2022-10-17 17:15:08,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:15:09,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:15:12,038 WARN L230 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_306a31dd-4251-45f8-88ad-dd4daf86f656/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2022-10-17 17:15:12,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:15:12,328 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:15:12,947 WARN L230 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_306a31dd-4251-45f8-88ad-dd4daf86f656/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2022-10-17 17:15:12,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:15:13,222 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:15:13,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13 WrapperNode [2022-10-17 17:15:13,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:15:13,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:15:13,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:15:13,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:15:13,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,647 INFO L138 Inliner]: procedures = 341, calls = 3940, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5421 [2022-10-17 17:15:13,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:15:13,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:15:13,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:15:13,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:15:13,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:13,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:14,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:15:14,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:15:14,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:15:14,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:15:14,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (1/1) ... [2022-10-17 17:15:14,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:15:14,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:15:14,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:15:14,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a31dd-4251-45f8-88ad-dd4daf86f656/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:15:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-10-17 17:15:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-10-17 17:15:14,084 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-10-17 17:15:14,084 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-10-17 17:15:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-17 17:15:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-17 17:15:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-10-17 17:15:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-10-17 17:15:14,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-17 17:15:14,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-17 17:15:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-10-17 17:15:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-10-17 17:15:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:15:14,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:15:14,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:15:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:15:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-10-17 17:15:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-10-17 17:15:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-10-17 17:15:14,087 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-10-17 17:15:14,087 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-10-17 17:15:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-10-17 17:15:14,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-10-17 17:15:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-10-17 17:15:14,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 17:15:14,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 17:15:14,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:15:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:15:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-10-17 17:15:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-10-17 17:15:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-10-17 17:15:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-10-17 17:15:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-10-17 17:15:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-10-17 17:15:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-10-17 17:15:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-10-17 17:15:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-10-17 17:15:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-10-17 17:15:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-10-17 17:15:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-10-17 17:15:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 17:15:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 17:15:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-10-17 17:15:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-10-17 17:15:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:15:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:15:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-10-17 17:15:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-10-17 17:15:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:15:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:15:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-17 17:15:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-17 17:15:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-10-17 17:15:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-10-17 17:15:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-10-17 17:15:14,096 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-10-17 17:15:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-10-17 17:15:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-10-17 17:15:14,097 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 17:15:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 17:15:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-10-17 17:15:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-10-17 17:15:14,098 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-10-17 17:15:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-10-17 17:15:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-10-17 17:15:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-10-17 17:15:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-10-17 17:15:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-10-17 17:15:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:15:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2022-10-17 17:15:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2022-10-17 17:15:14,100 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:15:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:15:14,101 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-10-17 17:15:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-10-17 17:15:14,101 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-10-17 17:15:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-10-17 17:15:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 17:15:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:15:14,102 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-10-17 17:15:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-10-17 17:15:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-10-17 17:15:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-10-17 17:15:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-10-17 17:15:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-10-17 17:15:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-10-17 17:15:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-10-17 17:15:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:15:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:15:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-10-17 17:15:14,106 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-10-17 17:15:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:15:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-10-17 17:15:14,107 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-10-17 17:15:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:15:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-10-17 17:15:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-10-17 17:15:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-10-17 17:15:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-10-17 17:15:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:15:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:15:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-10-17 17:15:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-10-17 17:15:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 17:15:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 17:15:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-10-17 17:15:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-10-17 17:15:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-10-17 17:15:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-10-17 17:15:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 17:15:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 17:15:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-10-17 17:15:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-10-17 17:15:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-10-17 17:15:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-10-17 17:15:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:15:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-10-17 17:15:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-10-17 17:15:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-10-17 17:15:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-10-17 17:15:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 17:15:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 17:15:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-10-17 17:15:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-10-17 17:15:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-10-17 17:15:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-10-17 17:15:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 17:15:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 17:15:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 17:15:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 17:15:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-10-17 17:15:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-10-17 17:15:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-10-17 17:15:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-10-17 17:15:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:15:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:15:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:15:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-10-17 17:15:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:15:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-10-17 17:15:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 17:15:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 17:15:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 17:15:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 17:15:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-10-17 17:15:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-10-17 17:15:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-10-17 17:15:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-10-17 17:15:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-10-17 17:15:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-10-17 17:15:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-10-17 17:15:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-10-17 17:15:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:15:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-10-17 17:15:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-10-17 17:15:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:15:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-10-17 17:15:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-10-17 17:15:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-10-17 17:15:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-10-17 17:15:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 17:15:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 17:15:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 17:15:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 17:15:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-10-17 17:15:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-10-17 17:15:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 17:15:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 17:15:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 17:15:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 17:15:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-10-17 17:15:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-10-17 17:15:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-10-17 17:15:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-10-17 17:15:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-10-17 17:15:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-10-17 17:15:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:15:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-10-17 17:15:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-10-17 17:15:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-10-17 17:15:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-10-17 17:15:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-17 17:15:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-17 17:15:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:15:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:15:14,897 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:15:14,901 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:15:15,333 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:15:22,677 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:15:24,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:15:24,074 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 17:15:24,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:15:24 BoogieIcfgContainer [2022-10-17 17:15:24,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:15:24,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:15:24,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:15:24,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:15:24,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:15:08" (1/3) ... [2022-10-17 17:15:24,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c51684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:15:24, skipping insertion in model container [2022-10-17 17:15:24,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:15:13" (2/3) ... [2022-10-17 17:15:24,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c51684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:15:24, skipping insertion in model container [2022-10-17 17:15:24,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:15:24" (3/3) ... [2022-10-17 17:15:24,091 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-10-17 17:15:24,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:15:24,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:15:24,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:15:24,241 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;@73fc12d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:15:24,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:15:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 1237 states, 751 states have (on average 1.3501997336884155) internal successors, (1014), 795 states have internal predecessors, (1014), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) [2022-10-17 17:15:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-17 17:15:24,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:24,291 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:24,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:15:24,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:24,298 INFO L85 PathProgramCache]: Analyzing trace with hash -239893985, now seen corresponding path program 1 times [2022-10-17 17:15:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:24,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063132270] [2022-10-17 17:15:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:24,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-10-17 17:15:25,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:25,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063132270] [2022-10-17 17:15:25,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063132270] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:25,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:25,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:15:25,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463210551] [2022-10-17 17:15:25,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:25,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:15:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:25,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:15:25,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:15:25,796 INFO L87 Difference]: Start difference. First operand has 1237 states, 751 states have (on average 1.3501997336884155) internal successors, (1014), 795 states have internal predecessors, (1014), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-17 17:15:27,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:15:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:15:30,572 INFO L93 Difference]: Finished difference Result 3391 states and 5052 transitions. [2022-10-17 17:15:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:15:30,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2022-10-17 17:15:30,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:15:30,612 INFO L225 Difference]: With dead ends: 3391 [2022-10-17 17:15:30,612 INFO L226 Difference]: Without dead ends: 2094 [2022-10-17 17:15:30,624 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 [2022-10-17 17:15:30,628 INFO L413 NwaCegarLoop]: 1892 mSDtfsCounter, 1395 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:15:30,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 3427 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-17 17:15:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2022-10-17 17:15:30,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2091. [2022-10-17 17:15:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1289 states have (on average 1.34833204034135) internal successors, (1738), 1355 states have internal predecessors, (1738), 645 states have call successors, (645), 157 states have call predecessors, (645), 156 states have return successors, (644), 606 states have call predecessors, (644), 644 states have call successors, (644) [2022-10-17 17:15:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 3027 transitions. [2022-10-17 17:15:30,865 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 3027 transitions. Word has length 125 [2022-10-17 17:15:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:15:30,866 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 3027 transitions. [2022-10-17 17:15:30,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-17 17:15:30,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 3027 transitions. [2022-10-17 17:15:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-17 17:15:30,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:30,873 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:30,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:15:30,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:15:30,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash -201300843, now seen corresponding path program 1 times [2022-10-17 17:15:30,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:30,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647025442] [2022-10-17 17:15:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:30,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-10-17 17:15:31,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:31,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647025442] [2022-10-17 17:15:31,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647025442] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:31,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:31,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:15:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390788923] [2022-10-17 17:15:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:31,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:15:31,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:15:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:15:31,641 INFO L87 Difference]: Start difference. First operand 2091 states and 3027 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-17 17:15:32,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:15:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:15:35,975 INFO L93 Difference]: Finished difference Result 5314 states and 7676 transitions. [2022-10-17 17:15:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:15:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 126 [2022-10-17 17:15:35,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:15:36,007 INFO L225 Difference]: With dead ends: 5314 [2022-10-17 17:15:36,008 INFO L226 Difference]: Without dead ends: 3248 [2022-10-17 17:15:36,020 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 [2022-10-17 17:15:36,021 INFO L413 NwaCegarLoop]: 1745 mSDtfsCounter, 1060 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:15:36,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 3144 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-17 17:15:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2022-10-17 17:15:36,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3245. [2022-10-17 17:15:36,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 2004 states have (on average 1.3498003992015968) internal successors, (2705), 2128 states have internal predecessors, (2705), 988 states have call successors, (988), 253 states have call predecessors, (988), 252 states have return successors, (987), 913 states have call predecessors, (987), 987 states have call successors, (987) [2022-10-17 17:15:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 4680 transitions. [2022-10-17 17:15:36,237 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 4680 transitions. Word has length 126 [2022-10-17 17:15:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:15:36,238 INFO L495 AbstractCegarLoop]: Abstraction has 3245 states and 4680 transitions. [2022-10-17 17:15:36,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-17 17:15:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4680 transitions. [2022-10-17 17:15:36,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-17 17:15:36,242 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:15:36,242 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:15:36,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:15:36,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:15:36,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:15:36,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2020341650, now seen corresponding path program 1 times [2022-10-17 17:15:36,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:15:36,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978772454] [2022-10-17 17:15:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:15:36,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:15:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:15:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-10-17 17:15:36,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:15:36,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978772454] [2022-10-17 17:15:36,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978772454] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:15:36,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:15:36,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:15:36,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939686337] [2022-10-17 17:15:36,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:15:36,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:15:36,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:15:36,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:15:36,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:15:36,988 INFO L87 Difference]: Start difference. First operand 3245 states and 4680 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)