./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0 --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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- 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-e04fb08 [2022-11-16 20:25:52,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:25:52,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:25:52,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:25:52,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:25:52,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:25:52,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:25:52,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:25:52,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:25:52,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:25:52,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:25:52,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:25:52,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:25:52,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:25:52,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:25:52,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:25:52,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:25:52,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:25:52,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:25:52,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:25:52,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:25:52,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:25:52,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:25:52,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:25:52,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:25:52,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:25:52,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:25:52,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:25:52,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:25:52,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:25:52,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:25:52,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:25:52,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:25:52,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:25:52,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:25:52,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:25:52,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:25:52,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:25:52,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:25:52,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:25:52,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:25:52,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 20:25:52,172 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:25:52,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:25:52,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:25:52,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:25:52,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:25:52,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:25:52,176 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:25:52,177 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:25:52,177 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:25:52,177 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:25:52,178 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:25:52,178 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:25:52,179 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:25:52,179 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:25:52,179 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:25:52,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:25:52,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:25:52,180 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:25:52,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:25:52,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:25:52,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:25:52,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:25:52,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:25:52,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:25:52,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:25:52,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:25:52,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:25:52,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:25:52,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:25:52,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:25:52,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:25:52,184 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:25:52,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:25:52,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:25:52,184 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:25:52,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:25:52,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:25:52,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:25:52,185 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_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2022-11-16 20:25:52,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:25:52,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:25:52,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:25:52,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:25:52,577 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:25:52,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-16 20:25:52,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/data/bed62d146/5fa007dba90e4c6bb065ca92222a8be9/FLAG9688dc2ef [2022-11-16 20:25:53,627 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:25:53,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-16 20:25:53,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/data/bed62d146/5fa007dba90e4c6bb065ca92222a8be9/FLAG9688dc2ef [2022-11-16 20:25:53,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/data/bed62d146/5fa007dba90e4c6bb065ca92222a8be9 [2022-11-16 20:25:54,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:25:54,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:25:54,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:25:54,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:25:54,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:25:54,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:25:53" (1/1) ... [2022-11-16 20:25:54,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa62d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:54, skipping insertion in model container [2022-11-16 20:25:54,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:25:53" (1/1) ... [2022-11-16 20:25:54,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:25:54,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:25:57,988 WARN L229 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_07bc9216-2d47-43bd-8ad5-e566105a6754/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-16 20:25:57,991 WARN L229 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_07bc9216-2d47-43bd-8ad5-e566105a6754/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-16 20:25:58,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:25:58,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:25:59,104 WARN L229 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_07bc9216-2d47-43bd-8ad5-e566105a6754/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2022-11-16 20:25:59,105 WARN L229 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_07bc9216-2d47-43bd-8ad5-e566105a6754/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2022-11-16 20:25:59,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:25:59,368 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:25:59,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59 WrapperNode [2022-11-16 20:25:59,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:25:59,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:25:59,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:25:59,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:25:59,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:25:59,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:25:59,756 INFO L138 Inliner]: procedures = 493, calls = 2689, calls flagged for inlining = 240, calls inlined = 225, statements flattened = 5170 [2022-11-16 20:25:59,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:25:59,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:25:59,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:25:59,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:25:59,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:25:59,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:25:59,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:25:59,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:25:59,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:26:00,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:26:00,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:26:00,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:26:00,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:26:00,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:26:00,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:26:00,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:26:00,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (1/1) ... [2022-11-16 20:26:00,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:26:00,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:26:00,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:26:00,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc9216-2d47-43bd-8ad5-e566105a6754/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:26:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-16 20:26:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-16 20:26:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-16 20:26:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-16 20:26:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-16 20:26:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-16 20:26:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 20:26:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 20:26:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-16 20:26:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-16 20:26:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-16 20:26:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-16 20:26:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 20:26:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 20:26:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-11-16 20:26:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-11-16 20:26:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 20:26:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 20:26:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-16 20:26:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-16 20:26:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-16 20:26:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-16 20:26:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-16 20:26:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-16 20:26:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-16 20:26:00,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-16 20:26:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-16 20:26:00,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-16 20:26:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 20:26:00,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 20:26:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-16 20:26:00,234 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-16 20:26:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-16 20:26:00,235 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-16 20:26:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-16 20:26:00,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-16 20:26:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-16 20:26:00,236 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-16 20:26:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-16 20:26:00,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-16 20:26:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 20:26:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-16 20:26:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 20:26:00,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 20:26:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-16 20:26:00,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-16 20:26:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-16 20:26:00,240 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-16 20:26:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:26:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-16 20:26:00,240 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-16 20:26:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 20:26:00,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 20:26:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 20:26:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 20:26:00,241 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 20:26:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-16 20:26:00,242 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-16 20:26:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-16 20:26:00,242 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-16 20:26:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 20:26:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-16 20:26:00,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-16 20:26:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-16 20:26:00,243 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-16 20:26:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:26:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-16 20:26:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-16 20:26:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-16 20:26:00,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-16 20:26:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-16 20:26:00,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-16 20:26:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-16 20:26:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-16 20:26:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-16 20:26:00,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-16 20:26:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-16 20:26:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-16 20:26:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 20:26:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 20:26:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-16 20:26:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-16 20:26:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-16 20:26:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-16 20:26:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-16 20:26:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-16 20:26:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 20:26:00,250 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 20:26:00,250 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-16 20:26:00,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-16 20:26:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-16 20:26:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-16 20:26:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-16 20:26:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-16 20:26:00,252 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-16 20:26:00,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-16 20:26:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:26:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-16 20:26:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-16 20:26:00,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-16 20:26:00,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-16 20:26:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:26:00,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 20:26:00,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 20:26:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 20:26:00,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 20:26:00,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-16 20:26:00,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-16 20:26:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:26:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-16 20:26:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-16 20:26:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 20:26:00,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 20:26:00,262 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-16 20:26:00,263 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-16 20:26:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 20:26:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 20:26:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-16 20:26:00,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-16 20:26:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-16 20:26:00,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-16 20:26:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-16 20:26:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-16 20:26:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-16 20:26:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-16 20:26:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-16 20:26:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-16 20:26:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 20:26:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 20:26:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-16 20:26:00,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-16 20:26:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-16 20:26:00,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-16 20:26:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-16 20:26:00,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-16 20:26:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-16 20:26:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-16 20:26:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-16 20:26:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-16 20:26:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-16 20:26:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-16 20:26:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:26:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:26:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-16 20:26:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-16 20:26:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 20:26:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 20:26:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 20:26:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 20:26:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-16 20:26:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-16 20:26:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-16 20:26:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-16 20:26:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-16 20:26:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-16 20:26:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-16 20:26:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-16 20:26:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-16 20:26:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-16 20:26:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 20:26:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 20:26:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-16 20:26:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-16 20:26:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-16 20:26:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-16 20:26:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-16 20:26:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-16 20:26:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-16 20:26:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-16 20:26:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-16 20:26:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-16 20:26:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-16 20:26:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-16 20:26:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 20:26:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 20:26:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:26:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-16 20:26:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-16 20:26:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-16 20:26:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-16 20:26:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:26:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-16 20:26:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-16 20:26:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-16 20:26:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-16 20:26:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 20:26:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 20:26:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 20:26:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-16 20:26:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-16 20:26:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-16 20:26:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-16 20:26:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-16 20:26:00,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-16 20:26:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-16 20:26:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-16 20:26:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-16 20:26:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-16 20:26:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-16 20:26:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-16 20:26:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-16 20:26:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-16 20:26:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-16 20:26:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-16 20:26:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-16 20:26:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-16 20:26:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 20:26:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 20:26:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-16 20:26:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-16 20:26:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 20:26:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 20:26:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-16 20:26:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-16 20:26:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-16 20:26:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-16 20:26:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 20:26:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 20:26:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-16 20:26:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-16 20:26:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:26:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-16 20:26:00,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-16 20:26:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 20:26:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 20:26:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-16 20:26:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-16 20:26:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-16 20:26:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-16 20:26:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-16 20:26:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-16 20:26:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-16 20:26:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-16 20:26:00,342 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 20:26:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 20:26:00,342 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-16 20:26:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-16 20:26:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-16 20:26:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-16 20:26:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-16 20:26:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-16 20:26:00,344 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-16 20:26:00,344 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-16 20:26:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-16 20:26:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-16 20:26:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-16 20:26:00,345 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-16 20:26:00,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:26:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 20:26:00,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 20:26:00,346 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-16 20:26:00,346 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-16 20:26:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-16 20:26:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-16 20:26:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-16 20:26:00,356 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-16 20:26:01,389 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:26:01,394 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:26:01,969 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 20:26:03,795 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1246#1.base, #t~mem1246#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-11-16 20:26:03,795 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895: SUMMARY for call lmc_trace(#t~mem1246#1.base, #t~mem1246#1.offset, 129, 0); srcloc: null [2022-11-16 20:26:03,796 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895-1: havoc #t~mem1246#1.base, #t~mem1246#1.offset; [2022-11-16 20:26:09,530 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-16 20:26:09,776 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:26:11,716 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:26:11,716 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 20:26:11,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:26:11 BoogieIcfgContainer [2022-11-16 20:26:11,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:26:11,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:26:11,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:26:11,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:26:11,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:25:53" (1/3) ... [2022-11-16 20:26:11,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0d3432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:26:11, skipping insertion in model container [2022-11-16 20:26:11,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:25:59" (2/3) ... [2022-11-16 20:26:11,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0d3432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:26:11, skipping insertion in model container [2022-11-16 20:26:11,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:26:11" (3/3) ... [2022-11-16 20:26:11,747 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-16 20:26:11,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:26:11,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:26:11,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:26:11,921 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;@2de97489, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:26:11,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:26:11,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) [2022-11-16 20:26:12,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-16 20:26:12,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:26:12,005 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:26:12,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:26:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:26:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2054296416, now seen corresponding path program 1 times [2022-11-16 20:26:12,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:26:12,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144756396] [2022-11-16 20:26:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:26:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:26:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:26:13,111 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-16 20:26:13,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:26:13,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144756396] [2022-11-16 20:26:13,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144756396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:13,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:26:13,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:26:13,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930460335] [2022-11-16 20:26:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:13,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:26:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:26:13,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:26:13,181 INFO L87 Difference]: Start difference. First operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-16 20:26:16,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:26:16,856 INFO L93 Difference]: Finished difference Result 5785 states and 8722 transitions. [2022-11-16 20:26:16,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:26:16,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2022-11-16 20:26:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:26:16,933 INFO L225 Difference]: With dead ends: 5785 [2022-11-16 20:26:16,934 INFO L226 Difference]: Without dead ends: 3746 [2022-11-16 20:26:16,967 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 [2022-11-16 20:26:16,971 INFO L413 NwaCegarLoop]: 3403 mSDtfsCounter, 2683 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 6003 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:26:16,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 6003 Invalid, 790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 20:26:16,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2022-11-16 20:26:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3743. [2022-11-16 20:26:17,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 2102 states have (on average 1.30732635585157) internal successors, (2748), 2233 states have internal predecessors, (2748), 1413 states have call successors, (1413), 227 states have call predecessors, (1413), 227 states have return successors, (1413), 1327 states have call predecessors, (1413), 1413 states have call successors, (1413) [2022-11-16 20:26:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 5574 transitions. [2022-11-16 20:26:17,455 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 5574 transitions. Word has length 189 [2022-11-16 20:26:17,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:26:17,459 INFO L495 AbstractCegarLoop]: Abstraction has 3743 states and 5574 transitions. [2022-11-16 20:26:17,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-16 20:26:17,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 5574 transitions. [2022-11-16 20:26:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-16 20:26:17,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:26:17,495 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:26:17,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:26:17,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:26:17,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:26:17,497 INFO L85 PathProgramCache]: Analyzing trace with hash -101888884, now seen corresponding path program 1 times [2022-11-16 20:26:17,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:26:17,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549383226] [2022-11-16 20:26:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:26:17,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:26:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:26:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-11-16 20:26:17,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:26:17,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549383226] [2022-11-16 20:26:17,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549383226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:17,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:26:17,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:26:17,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789289909] [2022-11-16 20:26:17,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:17,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:26:17,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:17,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:26:17,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:26:17,972 INFO L87 Difference]: Start difference. First operand 3743 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 20:26:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:26:21,849 INFO L93 Difference]: Finished difference Result 10501 states and 15613 transitions. [2022-11-16 20:26:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:26:21,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 238 [2022-11-16 20:26:21,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:26:21,930 INFO L225 Difference]: With dead ends: 10501 [2022-11-16 20:26:21,930 INFO L226 Difference]: Without dead ends: 6789 [2022-11-16 20:26:21,963 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 [2022-11-16 20:26:21,969 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 2384 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 5765 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-16 20:26:21,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 5765 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-16 20:26:21,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-11-16 20:26:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6780. [2022-11-16 20:26:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6780 states, 3823 states have (on average 1.3055192257389485) internal successors, (4991), 4069 states have internal predecessors, (4991), 2520 states have call successors, (2520), 436 states have call predecessors, (2520), 436 states have return successors, (2556), 2349 states have call predecessors, (2556), 2520 states have call successors, (2556) [2022-11-16 20:26:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6780 states to 6780 states and 10067 transitions. [2022-11-16 20:26:22,474 INFO L78 Accepts]: Start accepts. Automaton has 6780 states and 10067 transitions. Word has length 238 [2022-11-16 20:26:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:26:22,475 INFO L495 AbstractCegarLoop]: Abstraction has 6780 states and 10067 transitions. [2022-11-16 20:26:22,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-16 20:26:22,476 INFO L276 IsEmpty]: Start isEmpty. Operand 6780 states and 10067 transitions. [2022-11-16 20:26:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-16 20:26:22,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:26:22,496 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:26:22,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:26:22,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:26:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:26:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1204581737, now seen corresponding path program 1 times [2022-11-16 20:26:22,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:26:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616995015] [2022-11-16 20:26:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:26:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:26:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:26:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2022-11-16 20:26:22,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:26:22,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616995015] [2022-11-16 20:26:22,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616995015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:22,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:26:22,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:26:22,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272563389] [2022-11-16 20:26:22,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:22,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:26:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:26:22,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:26:22,967 INFO L87 Difference]: Start difference. First operand 6780 states and 10067 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-16 20:26:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:26:26,675 INFO L93 Difference]: Finished difference Result 19762 states and 29366 transitions. [2022-11-16 20:26:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:26:26,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 248 [2022-11-16 20:26:26,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:26:26,817 INFO L225 Difference]: With dead ends: 19762 [2022-11-16 20:26:26,818 INFO L226 Difference]: Without dead ends: 13013 [2022-11-16 20:26:26,884 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 [2022-11-16 20:26:26,888 INFO L413 NwaCegarLoop]: 3304 mSDtfsCounter, 2690 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 20:26:26,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 5883 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 20:26:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2022-11-16 20:26:27,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13003. [2022-11-16 20:26:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13003 states, 7297 states have (on average 1.3031382760038372) internal successors, (9509), 7781 states have internal predecessors, (9509), 4853 states have call successors, (4853), 852 states have call predecessors, (4853), 852 states have return successors, (4962), 4503 states have call predecessors, (4962), 4853 states have call successors, (4962) [2022-11-16 20:26:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13003 states to 13003 states and 19324 transitions. [2022-11-16 20:26:27,983 INFO L78 Accepts]: Start accepts. Automaton has 13003 states and 19324 transitions. Word has length 248 [2022-11-16 20:26:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:26:27,985 INFO L495 AbstractCegarLoop]: Abstraction has 13003 states and 19324 transitions. [2022-11-16 20:26:27,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-16 20:26:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13003 states and 19324 transitions. [2022-11-16 20:26:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-16 20:26:28,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:26:28,009 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 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] [2022-11-16 20:26:28,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:26:28,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:26:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:26:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash -66716136, now seen corresponding path program 1 times [2022-11-16 20:26:28,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:26:28,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520512867] [2022-11-16 20:26:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:26:28,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:26:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:26:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-16 20:26:28,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:26:28,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520512867] [2022-11-16 20:26:28,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520512867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:28,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:26:28,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:26:28,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462375691] [2022-11-16 20:26:28,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:28,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:26:28,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:28,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:26:28,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:26:28,598 INFO L87 Difference]: Start difference. First operand 13003 states and 19324 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-16 20:26:34,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 20:26:34,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:26:34,932 INFO L93 Difference]: Finished difference Result 32121 states and 47771 transitions. [2022-11-16 20:26:34,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:26:34,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 238 [2022-11-16 20:26:34,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:26:35,119 INFO L225 Difference]: With dead ends: 32121 [2022-11-16 20:26:35,120 INFO L226 Difference]: Without dead ends: 19149 [2022-11-16 20:26:35,225 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 [2022-11-16 20:26:35,227 INFO L413 NwaCegarLoop]: 4885 mSDtfsCounter, 2630 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 7415 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:26:35,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 7415 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-16 20:26:35,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19149 states. [2022-11-16 20:26:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19149 to 19143. [2022-11-16 20:26:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19143 states, 10753 states have (on average 1.3029852134288105) internal successors, (14011), 11473 states have internal predecessors, (14011), 7133 states have call successors, (7133), 1256 states have call predecessors, (7133), 1256 states have return successors, (7284), 6609 states have call predecessors, (7284), 7133 states have call successors, (7284) [2022-11-16 20:26:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 28428 transitions. [2022-11-16 20:26:36,893 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 28428 transitions. Word has length 238 [2022-11-16 20:26:36,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:26:36,895 INFO L495 AbstractCegarLoop]: Abstraction has 19143 states and 28428 transitions. [2022-11-16 20:26:36,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-16 20:26:36,896 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 28428 transitions. [2022-11-16 20:26:36,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-16 20:26:36,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:26:36,921 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:26:36,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:26:36,922 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:26:36,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:26:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash -654137454, now seen corresponding path program 1 times [2022-11-16 20:26:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:26:36,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196176985] [2022-11-16 20:26:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:26:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:26:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:26:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2022-11-16 20:26:37,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:26:37,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196176985] [2022-11-16 20:26:37,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196176985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:37,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:26:37,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:26:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704956122] [2022-11-16 20:26:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:37,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:26:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:26:37,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:26:37,393 INFO L87 Difference]: Start difference. First operand 19143 states and 28428 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-16 20:26:42,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:26:42,426 INFO L93 Difference]: Finished difference Result 56423 states and 83743 transitions. [2022-11-16 20:26:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:26:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 328 [2022-11-16 20:26:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:26:42,782 INFO L225 Difference]: With dead ends: 56423 [2022-11-16 20:26:42,782 INFO L226 Difference]: Without dead ends: 37311 [2022-11-16 20:26:42,946 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 [2022-11-16 20:26:42,947 INFO L413 NwaCegarLoop]: 3518 mSDtfsCounter, 2843 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 6044 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:26:42,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 6044 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 20:26:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37311 states. [2022-11-16 20:26:45,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37311 to 37253. [2022-11-16 20:26:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37253 states, 20921 states have (on average 1.3041919602313465) internal successors, (27285), 22357 states have internal predecessors, (27285), 13855 states have call successors, (13855), 2476 states have call predecessors, (13855), 2476 states have return successors, (14152), 12799 states have call predecessors, (14152), 13855 states have call successors, (14152) [2022-11-16 20:26:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37253 states to 37253 states and 55292 transitions. [2022-11-16 20:26:46,325 INFO L78 Accepts]: Start accepts. Automaton has 37253 states and 55292 transitions. Word has length 328 [2022-11-16 20:26:46,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:26:46,331 INFO L495 AbstractCegarLoop]: Abstraction has 37253 states and 55292 transitions. [2022-11-16 20:26:46,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-16 20:26:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 37253 states and 55292 transitions. [2022-11-16 20:26:46,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-11-16 20:26:46,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:26:46,397 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:26:46,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:26:46,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:26:46,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:26:46,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1913791430, now seen corresponding path program 1 times [2022-11-16 20:26:46,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:26:46,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676438621] [2022-11-16 20:26:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:26:46,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:26:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:26:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2022-11-16 20:26:47,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:26:47,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676438621] [2022-11-16 20:26:47,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676438621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:26:47,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:26:47,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:26:47,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403974760] [2022-11-16 20:26:47,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:26:47,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:26:47,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:26:47,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:26:47,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:26:47,092 INFO L87 Difference]: Start difference. First operand 37253 states and 55292 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 20:26:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:26:54,728 INFO L93 Difference]: Finished difference Result 111661 states and 165724 transitions. [2022-11-16 20:26:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:26:54,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 350 [2022-11-16 20:26:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:26:55,509 INFO L225 Difference]: With dead ends: 111661 [2022-11-16 20:26:55,510 INFO L226 Difference]: Without dead ends: 74439 [2022-11-16 20:26:55,775 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 [2022-11-16 20:26:55,777 INFO L413 NwaCegarLoop]: 3739 mSDtfsCounter, 2870 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6316 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-16 20:26:55,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 6316 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-16 20:26:55,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74439 states. [2022-11-16 20:27:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74439 to 74389. [2022-11-16 20:27:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74389 states, 41765 states have (on average 1.30360349575003) internal successors, (54445), 44673 states have internal predecessors, (54445), 27671 states have call successors, (27671), 4952 states have call predecessors, (27671), 4952 states have return successors, (28265), 25523 states have call predecessors, (28265), 27671 states have call successors, (28265) [2022-11-16 20:27:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74389 states to 74389 states and 110381 transitions. [2022-11-16 20:27:02,190 INFO L78 Accepts]: Start accepts. Automaton has 74389 states and 110381 transitions. Word has length 350 [2022-11-16 20:27:02,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:27:02,191 INFO L495 AbstractCegarLoop]: Abstraction has 74389 states and 110381 transitions. [2022-11-16 20:27:02,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-16 20:27:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 74389 states and 110381 transitions. [2022-11-16 20:27:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-16 20:27:02,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:27:02,285 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-16 20:27:02,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:27:02,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:27:02,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:27:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1386327685, now seen corresponding path program 1 times [2022-11-16 20:27:02,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:27:02,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64574276] [2022-11-16 20:27:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:27:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:27:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:27:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-16 20:27:07,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:27:07,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64574276] [2022-11-16 20:27:07,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64574276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:27:07,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:27:07,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 20:27:07,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138626736] [2022-11-16 20:27:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:27:07,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:27:07,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:27:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:27:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:27:07,983 INFO L87 Difference]: Start difference. First operand 74389 states and 110381 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 20:27:27,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:27:27,101 INFO L93 Difference]: Finished difference Result 128959 states and 191594 transitions. [2022-11-16 20:27:27,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:27:27,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 300 [2022-11-16 20:27:27,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:27:28,032 INFO L225 Difference]: With dead ends: 128959 [2022-11-16 20:27:28,032 INFO L226 Difference]: Without dead ends: 128957 [2022-11-16 20:27:28,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 20:27:28,129 INFO L413 NwaCegarLoop]: 3493 mSDtfsCounter, 2210 mSDsluCounter, 11848 mSDsCounter, 0 mSdLazyCounter, 3371 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 15341 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-16 20:27:28,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 15341 Invalid, 3374 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 3371 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-16 20:27:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128957 states.