./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:26:00,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:26:00,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:26:00,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:26:00,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:26:00,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:26:00,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:26:00,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:26:00,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:26:00,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:26:00,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:26:00,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:26:00,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:26:00,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:26:00,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:26:00,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:26:00,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:26:00,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:26:00,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:26:00,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:26:00,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:26:00,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:26:00,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:26:00,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:26:00,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:26:00,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:26:00,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:26:00,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:26:00,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:26:00,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:26:00,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:26:00,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:26:00,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:26:00,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:26:00,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:26:00,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:26:00,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:26:00,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:26:00,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:26:00,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:26:00,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:26:00,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:26:00,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:26:00,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:26:00,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:26:00,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:26:00,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:26:00,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:26:00,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:26:00,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:26:00,967 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:26:00,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:26:00,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:26:00,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:26:00,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:26:00,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:26:00,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:26:00,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:26:00,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:26:00,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:26:00,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:26:00,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:26:00,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:26:00,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:26:00,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:26:00,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:26:00,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:26:00,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:26:00,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:26:00,972 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:26:00,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:26:00,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:26:00,973 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_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-11-21 16:26:01,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:26:01,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:26:01,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:26:01,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:26:01,346 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:26:01,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-11-21 16:26:04,448 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:26:05,087 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:26:05,088 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-11-21 16:26:05,151 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/data/b71d9dbac/bea7c20df9164f0784c9816a4a95951a/FLAG8634847ab [2022-11-21 16:26:05,170 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/data/b71d9dbac/bea7c20df9164f0784c9816a4a95951a [2022-11-21 16:26:05,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:26:05,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:26:05,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:26:05,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:26:05,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:26:05,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782fbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:05, skipping insertion in model container [2022-11-21 16:26:05,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:26:05" (1/1) ... [2022-11-21 16:26:05,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:26:05,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:26:06,021 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-11-21 16:26:06,022 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-11-21 16:26:06,744 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-11-21 16:26:08,594 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-21 16:26:08,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:08,668 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:26:08,844 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-11-21 16:26:08,845 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-11-21 16:26:08,863 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i[183417,183430] [2022-11-21 16:26:09,404 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-21 16:26:09,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:26:09,605 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:26:09,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09 WrapperNode [2022-11-21 16:26:09,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:26:09,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:26:09,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:26:09,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:26:09,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:09,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:09,937 INFO L138 Inliner]: procedures = 454, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7458 [2022-11-21 16:26:09,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:26:09,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:26:09,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:26:09,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:26:09,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:09,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,235 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:26:10,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:26:10,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:26:10,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:26:10,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (1/1) ... [2022-11-21 16:26:10,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:26:10,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:26:10,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:26:10,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:26:10,499 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-21 16:26:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-21 16:26:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-21 16:26:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-11-21 16:26:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-11-21 16:26:10,501 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-11-21 16:26:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-11-21 16:26:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-21 16:26:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-21 16:26:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-11-21 16:26:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-11-21 16:26:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-21 16:26:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-21 16:26:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-11-21 16:26:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-11-21 16:26:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 16:26:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 16:26:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:26:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:26:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-11-21 16:26:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-11-21 16:26:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-11-21 16:26:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-11-21 16:26:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-11-21 16:26:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-11-21 16:26:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-21 16:26:10,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-21 16:26:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-11-21 16:26:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-11-21 16:26:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-21 16:26:10,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-21 16:26:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-11-21 16:26:10,507 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-11-21 16:26:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-11-21 16:26:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-11-21 16:26:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-11-21 16:26:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-11-21 16:26:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-11-21 16:26:10,508 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-11-21 16:26:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 16:26:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 16:26:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-21 16:26:10,509 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-21 16:26:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-11-21 16:26:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-11-21 16:26:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-21 16:26:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-21 16:26:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-11-21 16:26:10,510 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-11-21 16:26:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-21 16:26:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-11-21 16:26:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-11-21 16:26:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-21 16:26:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-21 16:26:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-21 16:26:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-11-21 16:26:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-11-21 16:26:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-21 16:26:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:26:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-11-21 16:26:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-11-21 16:26:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-11-21 16:26:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-11-21 16:26:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-11-21 16:26:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-11-21 16:26:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-11-21 16:26:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-11-21 16:26:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-11-21 16:26:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-11-21 16:26:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-21 16:26:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-21 16:26:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-11-21 16:26:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-11-21 16:26:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-11-21 16:26:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-11-21 16:26:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 16:26:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-11-21 16:26:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-11-21 16:26:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 16:26:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 16:26:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 16:26:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-11-21 16:26:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-11-21 16:26:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:26:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-11-21 16:26:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-11-21 16:26:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-11-21 16:26:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-11-21 16:26:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 16:26:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 16:26:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-21 16:26:10,520 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-21 16:26:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-11-21 16:26:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-11-21 16:26:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-11-21 16:26:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-11-21 16:26:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-21 16:26:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-21 16:26:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-21 16:26:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-21 16:26:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 16:26:10,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 16:26:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-11-21 16:26:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-11-21 16:26:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-11-21 16:26:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-11-21 16:26:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-11-21 16:26:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-11-21 16:26:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-21 16:26:10,524 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-21 16:26:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-21 16:26:10,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-21 16:26:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-11-21 16:26:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-11-21 16:26:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-11-21 16:26:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-11-21 16:26:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-11-21 16:26:10,531 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-11-21 16:26:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-11-21 16:26:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-11-21 16:26:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-11-21 16:26:10,534 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-11-21 16:26:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-11-21 16:26:10,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-11-21 16:26:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-11-21 16:26:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-11-21 16:26:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:26:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-21 16:26:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-21 16:26:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:26:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:26:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 16:26:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:26:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:26:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-11-21 16:26:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-11-21 16:26:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-11-21 16:26:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-11-21 16:26:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-11-21 16:26:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-11-21 16:26:10,542 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-11-21 16:26:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-11-21 16:26:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-21 16:26:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-21 16:26:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-21 16:26:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-21 16:26:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-11-21 16:26:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-11-21 16:26:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 16:26:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 16:26:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 16:26:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 16:26:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-11-21 16:26:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-11-21 16:26:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-11-21 16:26:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-11-21 16:26:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 16:26:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 16:26:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-21 16:26:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-21 16:26:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-11-21 16:26:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-11-21 16:26:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-11-21 16:26:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-11-21 16:26:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-11-21 16:26:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-11-21 16:26:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-21 16:26:10,547 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-21 16:26:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:26:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:26:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-21 16:26:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-21 16:26:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-21 16:26:10,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-21 16:26:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-21 16:26:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-21 16:26:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-21 16:26:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-21 16:26:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:26:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:26:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:26:10,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:26:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-21 16:26:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-21 16:26:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-21 16:26:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-21 16:26:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-11-21 16:26:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-11-21 16:26:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-11-21 16:26:10,550 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-11-21 16:26:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-11-21 16:26:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-11-21 16:26:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-11-21 16:26:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-11-21 16:26:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-21 16:26:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-21 16:26:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-21 16:26:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-21 16:26:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 16:26:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 16:26:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:26:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:26:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-11-21 16:26:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-11-21 16:26:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-11-21 16:26:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-11-21 16:26:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-11-21 16:26:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-11-21 16:26:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 16:26:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 16:26:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 16:26:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 16:26:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-11-21 16:26:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-11-21 16:26:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-11-21 16:26:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-11-21 16:26:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:26:10,554 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:26:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-21 16:26:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-21 16:26:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-11-21 16:26:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-11-21 16:26:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-11-21 16:26:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-11-21 16:26:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:26:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-11-21 16:26:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-11-21 16:26:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 16:26:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 16:26:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-11-21 16:26:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-11-21 16:26:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:26:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-11-21 16:26:10,556 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-11-21 16:26:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-21 16:26:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-21 16:26:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-11-21 16:26:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-11-21 16:26:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-21 16:26:10,558 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-21 16:26:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-11-21 16:26:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-11-21 16:26:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-21 16:26:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-21 16:26:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-21 16:26:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-21 16:26:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-21 16:26:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-21 16:26:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-11-21 16:26:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-11-21 16:26:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:26:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-21 16:26:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-21 16:26:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-11-21 16:26:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-11-21 16:26:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-21 16:26:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-21 16:26:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-11-21 16:26:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-11-21 16:26:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 16:26:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 16:26:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-11-21 16:26:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-11-21 16:26:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-11-21 16:26:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-11-21 16:26:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-21 16:26:10,568 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-21 16:26:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-11-21 16:26:10,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-11-21 16:26:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-11-21 16:26:10,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-11-21 16:26:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-11-21 16:26:10,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-11-21 16:26:10,568 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-11-21 16:26:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-11-21 16:26:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-11-21 16:26:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-11-21 16:26:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 16:26:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 16:26:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-21 16:26:10,569 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-21 16:26:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:26:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:26:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-11-21 16:26:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-11-21 16:26:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-11-21 16:26:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-11-21 16:26:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:26:10,570 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-11-21 16:26:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-11-21 16:26:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-11-21 16:26:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-11-21 16:26:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:26:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:26:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-11-21 16:26:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-11-21 16:26:10,571 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-11-21 16:26:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-11-21 16:26:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-21 16:26:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-21 16:26:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-11-21 16:26:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-11-21 16:26:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-21 16:26:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-21 16:26:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-21 16:26:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-21 16:26:10,572 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-11-21 16:26:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-11-21 16:26:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-21 16:26:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-21 16:26:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-11-21 16:26:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-11-21 16:26:10,573 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-11-21 16:26:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-11-21 16:26:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-11-21 16:26:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-11-21 16:26:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-21 16:26:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-21 16:26:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-11-21 16:26:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-11-21 16:26:10,574 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-21 16:26:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-21 16:26:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-11-21 16:26:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-11-21 16:26:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-11-21 16:26:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-11-21 16:26:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-21 16:26:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-21 16:26:10,575 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-11-21 16:26:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-11-21 16:26:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-11-21 16:26:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-11-21 16:26:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:26:10,576 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-11-21 16:26:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-11-21 16:26:11,914 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:26:11,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:26:12,275 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:26:20,786 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:26:20,816 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:26:20,816 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:26:20,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:20 BoogieIcfgContainer [2022-11-21 16:26:20,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:26:20,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:26:20,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:26:20,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:26:20,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:26:05" (1/3) ... [2022-11-21 16:26:20,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7236a44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:26:20, skipping insertion in model container [2022-11-21 16:26:20,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:26:09" (2/3) ... [2022-11-21 16:26:20,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7236a44e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:26:20, skipping insertion in model container [2022-11-21 16:26:20,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:26:20" (3/3) ... [2022-11-21 16:26:20,833 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--unix--unix.ko-entry_point.cil.out.i [2022-11-21 16:26:20,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:26:20,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:26:20,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:26:20,987 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=PETRI_NET, 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;@134c5f97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:26:20,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:26:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 2773 states, 1918 states have (on average 1.3628779979144943) internal successors, (2614), 2020 states have internal predecessors, (2614), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) [2022-11-21 16:26:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-21 16:26:21,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:21,058 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:21,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:26:21,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:21,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1919764386, now seen corresponding path program 1 times [2022-11-21 16:26:21,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:26:21,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576649189] [2022-11-21 16:26:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:26:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:26:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:26:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:26:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:26:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:26:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:26:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:26:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:26:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:26:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:26:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:26:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:26:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:26:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:26:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:26:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:26:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:26:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:26:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:26:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:26:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:26:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:26:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:26:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:26:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:26:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:26:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:26:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:26:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-21 16:26:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-21 16:26:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-21 16:26:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-21 16:26:22,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:26:22,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576649189] [2022-11-21 16:26:22,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576649189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:22,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:22,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:26:22,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658307050] [2022-11-21 16:26:22,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:22,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:26:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:22,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:22,638 INFO L87 Difference]: Start difference. First operand has 2773 states, 1918 states have (on average 1.3628779979144943) internal successors, (2614), 2020 states have internal predecessors, (2614), 697 states have call successors, (697), 157 states have call predecessors, (697), 156 states have return successors, (688), 672 states have call predecessors, (688), 688 states have call successors, (688) Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-21 16:26:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:33,371 INFO L93 Difference]: Finished difference Result 8110 states and 11924 transitions. [2022-11-21 16:26:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:26:33,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 214 [2022-11-21 16:26:33,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:33,460 INFO L225 Difference]: With dead ends: 8110 [2022-11-21 16:26:33,460 INFO L226 Difference]: Without dead ends: 5289 [2022-11-21 16:26:33,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:26:33,492 INFO L413 NwaCegarLoop]: 3434 mSDtfsCounter, 4722 mSDsluCounter, 3955 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 1671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5244 SdHoareTripleChecker+Valid, 7389 SdHoareTripleChecker+Invalid, 5597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1671 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:33,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5244 Valid, 7389 Invalid, 5597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1671 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-21 16:26:33,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5289 states. [2022-11-21 16:26:33,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5289 to 5046. [2022-11-21 16:26:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5046 states, 3499 states have (on average 1.3478136610460132) internal successors, (4716), 3676 states have internal predecessors, (4716), 1238 states have call successors, (1238), 309 states have call predecessors, (1238), 308 states have return successors, (1237), 1206 states have call predecessors, (1237), 1237 states have call successors, (1237) [2022-11-21 16:26:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 7191 transitions. [2022-11-21 16:26:34,023 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 7191 transitions. Word has length 214 [2022-11-21 16:26:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:34,028 INFO L495 AbstractCegarLoop]: Abstraction has 5046 states and 7191 transitions. [2022-11-21 16:26:34,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-21 16:26:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 7191 transitions. [2022-11-21 16:26:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-21 16:26:34,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:34,043 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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] [2022-11-21 16:26:34,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:26:34,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:26:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:34,044 INFO L85 PathProgramCache]: Analyzing trace with hash 332974126, now seen corresponding path program 1 times [2022-11-21 16:26:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:26:34,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006720652] [2022-11-21 16:26:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:34,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:26:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:26:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:26:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:26:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:26:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:26:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:26:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:26:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:26:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:26:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:26:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:26:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:26:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:26:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:26:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:26:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:26:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:26:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:26:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:26:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:26:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:26:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:26:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:26:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:26:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:26:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:26:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:26:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:26:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 16:26:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-21 16:26:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-21 16:26:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-21 16:26:34,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:26:34,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006720652] [2022-11-21 16:26:34,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006720652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:34,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:34,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:26:34,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682185717] [2022-11-21 16:26:34,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:34,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:34,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:26:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:34,939 INFO L87 Difference]: Start difference. First operand 5046 states and 7191 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-21 16:26:44,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:44,943 INFO L93 Difference]: Finished difference Result 15225 states and 21832 transitions. [2022-11-21 16:26:44,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:26:44,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 213 [2022-11-21 16:26:44,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:45,113 INFO L225 Difference]: With dead ends: 15225 [2022-11-21 16:26:45,113 INFO L226 Difference]: Without dead ends: 10238 [2022-11-21 16:26:45,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:26:45,140 INFO L413 NwaCegarLoop]: 3908 mSDtfsCounter, 5002 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 4030 mSolverCounterSat, 1594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5583 SdHoareTripleChecker+Valid, 8103 SdHoareTripleChecker+Invalid, 5624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 4030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:45,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5583 Valid, 8103 Invalid, 5624 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1594 Valid, 4030 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-21 16:26:45,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10238 states. [2022-11-21 16:26:45,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10238 to 9757. [2022-11-21 16:26:45,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9757 states, 6787 states have (on average 1.3441874171209665) internal successors, (9123), 7126 states have internal predecessors, (9123), 2357 states have call successors, (2357), 613 states have call predecessors, (2357), 612 states have return successors, (2356), 2301 states have call predecessors, (2356), 2356 states have call successors, (2356) [2022-11-21 16:26:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9757 states to 9757 states and 13836 transitions. [2022-11-21 16:26:45,656 INFO L78 Accepts]: Start accepts. Automaton has 9757 states and 13836 transitions. Word has length 213 [2022-11-21 16:26:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:45,657 INFO L495 AbstractCegarLoop]: Abstraction has 9757 states and 13836 transitions. [2022-11-21 16:26:45,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-21 16:26:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 9757 states and 13836 transitions. [2022-11-21 16:26:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-21 16:26:45,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:45,665 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 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] [2022-11-21 16:26:45,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:26:45,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:26:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:45,666 INFO L85 PathProgramCache]: Analyzing trace with hash 447670139, now seen corresponding path program 1 times [2022-11-21 16:26:45,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:26:45,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109117660] [2022-11-21 16:26:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:45,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:26:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:26:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:26:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:26:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:26:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:26:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:26:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:26:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:26:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:26:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:26:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:26:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:26:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:26:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:26:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:26:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:26:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:26:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:26:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:26:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:26:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:26:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:26:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:26:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:26:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:26:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:26:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:26:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:26:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-21 16:26:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-21 16:26:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-21 16:26:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-21 16:26:46,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:26:46,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109117660] [2022-11-21 16:26:46,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109117660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:46,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:46,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:26:46,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631632205] [2022-11-21 16:26:46,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:46,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:46,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:26:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:46,420 INFO L87 Difference]: Start difference. First operand 9757 states and 13836 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-21 16:26:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:26:56,408 INFO L93 Difference]: Finished difference Result 27387 states and 38995 transitions. [2022-11-21 16:26:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:26:56,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 220 [2022-11-21 16:26:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:26:56,551 INFO L225 Difference]: With dead ends: 27387 [2022-11-21 16:26:56,552 INFO L226 Difference]: Without dead ends: 17689 [2022-11-21 16:26:56,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:26:56,607 INFO L413 NwaCegarLoop]: 4966 mSDtfsCounter, 4289 mSDsluCounter, 4656 mSDsCounter, 0 mSdLazyCounter, 4954 mSolverCounterSat, 1264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 9622 SdHoareTripleChecker+Invalid, 6218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 4954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:26:56,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 9622 Invalid, 6218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1264 Valid, 4954 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-21 16:26:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17689 states. [2022-11-21 16:26:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17689 to 16838. [2022-11-21 16:26:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16838 states, 11759 states have (on average 1.341355557445361) internal successors, (15773), 12343 states have internal predecessors, (15773), 3985 states have call successors, (3985), 1094 states have call predecessors, (3985), 1093 states have return successors, (3984), 3889 states have call predecessors, (3984), 3984 states have call successors, (3984) [2022-11-21 16:26:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16838 states to 16838 states and 23742 transitions. [2022-11-21 16:26:57,628 INFO L78 Accepts]: Start accepts. Automaton has 16838 states and 23742 transitions. Word has length 220 [2022-11-21 16:26:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:26:57,629 INFO L495 AbstractCegarLoop]: Abstraction has 16838 states and 23742 transitions. [2022-11-21 16:26:57,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-21 16:26:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 16838 states and 23742 transitions. [2022-11-21 16:26:57,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-21 16:26:57,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:26:57,654 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:26:57,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:26:57,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:26:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:26:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1294282392, now seen corresponding path program 1 times [2022-11-21 16:26:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:26:57,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789392280] [2022-11-21 16:26:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:26:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:26:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:26:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:26:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:26:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:26:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:26:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:26:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:26:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:26:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:26:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:26:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:26:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:26:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:26:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:26:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:26:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:26:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:26:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:26:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:26:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:26:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:26:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:26:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:26:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:26:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:26:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:26:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:26:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-21 16:26:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-21 16:26:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 16:26:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 16:26:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-21 16:26:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-21 16:26:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-21 16:26:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-21 16:26:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-21 16:26:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-21 16:26:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-21 16:26:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-21 16:26:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-21 16:26:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-21 16:26:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-21 16:26:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-21 16:26:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-21 16:26:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-21 16:26:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-21 16:26:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-21 16:26:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-21 16:26:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-21 16:26:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-11-21 16:26:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-11-21 16:26:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-11-21 16:26:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-11-21 16:26:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:26:59,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789392280] [2022-11-21 16:26:59,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789392280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:59,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:26:59,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:26:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762142663] [2022-11-21 16:26:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:59,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:26:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:26:59,562 INFO L87 Difference]: Start difference. First operand 16838 states and 23742 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-11-21 16:27:07,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:07,832 INFO L93 Difference]: Finished difference Result 29499 states and 41984 transitions. [2022-11-21 16:27:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:27:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 369 [2022-11-21 16:27:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:08,116 INFO L225 Difference]: With dead ends: 29499 [2022-11-21 16:27:08,116 INFO L226 Difference]: Without dead ends: 29496 [2022-11-21 16:27:08,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:08,132 INFO L413 NwaCegarLoop]: 3466 mSDtfsCounter, 4182 mSDsluCounter, 3666 mSDsCounter, 0 mSdLazyCounter, 3742 mSolverCounterSat, 1389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 7132 SdHoareTripleChecker+Invalid, 5131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1389 IncrementalHoareTripleChecker+Valid, 3742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:08,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 7132 Invalid, 5131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1389 Valid, 3742 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-21 16:27:08,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29496 states. [2022-11-21 16:27:09,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29496 to 27763. [2022-11-21 16:27:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27763 states, 19737 states have (on average 1.3466078938035162) internal successors, (26578), 20609 states have internal predecessors, (26578), 6038 states have call successors, (6038), 1964 states have call predecessors, (6038), 1987 states have return successors, (6345), 5863 states have call predecessors, (6345), 6037 states have call successors, (6345) [2022-11-21 16:27:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27763 states to 27763 states and 38961 transitions. [2022-11-21 16:27:09,784 INFO L78 Accepts]: Start accepts. Automaton has 27763 states and 38961 transitions. Word has length 369 [2022-11-21 16:27:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:09,785 INFO L495 AbstractCegarLoop]: Abstraction has 27763 states and 38961 transitions. [2022-11-21 16:27:09,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (57), 4 states have call predecessors, (57), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2022-11-21 16:27:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 27763 states and 38961 transitions. [2022-11-21 16:27:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-21 16:27:09,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:09,852 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:09,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:27:09,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:09,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:09,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1167071515, now seen corresponding path program 1 times [2022-11-21 16:27:09,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:27:09,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694991119] [2022-11-21 16:27:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:09,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:27:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:27:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:27:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:27:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:27:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:27:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:27:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:27:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:27:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:27:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:27:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:27:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:27:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:27:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:27:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:27:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:27:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:27:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:27:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:27:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:27:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:27:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:27:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:27:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:27:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:27:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:27:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:27:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:27:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-21 16:27:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:27:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-21 16:27:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-21 16:27:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-21 16:27:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-21 16:27:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-21 16:27:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-21 16:27:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-21 16:27:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-21 16:27:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-21 16:27:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-21 16:27:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-21 16:27:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-21 16:27:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-21 16:27:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-21 16:27:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-21 16:27:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-11-21 16:27:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-11-21 16:27:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-11-21 16:27:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-11-21 16:27:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-11-21 16:27:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-11-21 16:27:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-11-21 16:27:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-11-21 16:27:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-21 16:27:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-11-21 16:27:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-11-21 16:27:10,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:27:10,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694991119] [2022-11-21 16:27:10,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694991119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:10,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:10,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:27:10,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996389434] [2022-11-21 16:27:10,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:10,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:27:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:27:10,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:27:10,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:10,794 INFO L87 Difference]: Start difference. First operand 27763 states and 38961 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-21 16:27:25,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:25,173 INFO L93 Difference]: Finished difference Result 86238 states and 122268 transitions. [2022-11-21 16:27:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:27:25,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 395 [2022-11-21 16:27:25,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:25,515 INFO L225 Difference]: With dead ends: 86238 [2022-11-21 16:27:25,516 INFO L226 Difference]: Without dead ends: 58543 [2022-11-21 16:27:25,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:27:25,640 INFO L413 NwaCegarLoop]: 4764 mSDtfsCounter, 5858 mSDsluCounter, 6804 mSDsCounter, 0 mSdLazyCounter, 7068 mSolverCounterSat, 3083 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6522 SdHoareTripleChecker+Valid, 11568 SdHoareTripleChecker+Invalid, 10151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3083 IncrementalHoareTripleChecker+Valid, 7068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:25,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6522 Valid, 11568 Invalid, 10151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3083 Valid, 7068 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-11-21 16:27:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58543 states. [2022-11-21 16:27:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58543 to 56186. [2022-11-21 16:27:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56186 states, 39837 states have (on average 1.3451314104977785) internal successors, (53586), 41783 states have internal predecessors, (53586), 12278 states have call successors, (12278), 3853 states have call predecessors, (12278), 4070 states have return successors, (13219), 11975 states have call predecessors, (13219), 12277 states have call successors, (13219) [2022-11-21 16:27:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56186 states to 56186 states and 79083 transitions. [2022-11-21 16:27:29,020 INFO L78 Accepts]: Start accepts. Automaton has 56186 states and 79083 transitions. Word has length 395 [2022-11-21 16:27:29,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:29,021 INFO L495 AbstractCegarLoop]: Abstraction has 56186 states and 79083 transitions. [2022-11-21 16:27:29,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-21 16:27:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 56186 states and 79083 transitions. [2022-11-21 16:27:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-21 16:27:29,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:29,162 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:29,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:27:29,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:29,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:29,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1382372113, now seen corresponding path program 1 times [2022-11-21 16:27:29,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:27:29,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107914428] [2022-11-21 16:27:29,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:29,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:27:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:27:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:29,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:27:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:29,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:27:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:27:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:27:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:27:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:27:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:27:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:27:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:27:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:27:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:27:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:27:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:27:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:27:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:27:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:27:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:27:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:27:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:27:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:27:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:27:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:27:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:27:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:27:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:27:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:27:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:27:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-21 16:27:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-21 16:27:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 16:27:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 16:27:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-21 16:27:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-21 16:27:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-21 16:27:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-21 16:27:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-21 16:27:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-21 16:27:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-21 16:27:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-21 16:27:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-21 16:27:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-21 16:27:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-21 16:27:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-21 16:27:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-21 16:27:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-21 16:27:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-21 16:27:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-21 16:27:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-21 16:27:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-21 16:27:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-21 16:27:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:27:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-11-21 16:27:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-11-21 16:27:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-11-21 16:27:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:27:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-11-21 16:27:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:27:30,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107914428] [2022-11-21 16:27:30,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107914428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:27:30,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:27:30,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:27:30,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80895026] [2022-11-21 16:27:30,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:27:30,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:27:30,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:27:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:27:30,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:27:30,611 INFO L87 Difference]: Start difference. First operand 56186 states and 79083 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-21 16:27:51,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:27:51,010 INFO L93 Difference]: Finished difference Result 173104 states and 245600 transitions. [2022-11-21 16:27:51,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:27:51,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 396 [2022-11-21 16:27:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:27:52,208 INFO L225 Difference]: With dead ends: 173104 [2022-11-21 16:27:52,208 INFO L226 Difference]: Without dead ends: 116986 [2022-11-21 16:27:52,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:27:52,470 INFO L413 NwaCegarLoop]: 5272 mSDtfsCounter, 5644 mSDsluCounter, 7496 mSDsCounter, 0 mSdLazyCounter, 7448 mSolverCounterSat, 2846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6278 SdHoareTripleChecker+Valid, 12768 SdHoareTripleChecker+Invalid, 10294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2846 IncrementalHoareTripleChecker+Valid, 7448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:27:52,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6278 Valid, 12768 Invalid, 10294 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2846 Valid, 7448 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-11-21 16:27:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116986 states. [2022-11-21 16:27:58,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116986 to 112277. [2022-11-21 16:27:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112277 states, 79613 states have (on average 1.3451823194704382) internal successors, (107094), 83513 states have internal predecessors, (107094), 24524 states have call successors, (24524), 7704 states have call predecessors, (24524), 8139 states have return successors, (26407), 23911 states have call predecessors, (26407), 24523 states have call successors, (26407) [2022-11-21 16:27:59,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112277 states to 112277 states and 158025 transitions. [2022-11-21 16:27:59,415 INFO L78 Accepts]: Start accepts. Automaton has 112277 states and 158025 transitions. Word has length 396 [2022-11-21 16:27:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:27:59,416 INFO L495 AbstractCegarLoop]: Abstraction has 112277 states and 158025 transitions. [2022-11-21 16:27:59,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (59), 4 states have call predecessors, (59), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-21 16:27:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 112277 states and 158025 transitions. [2022-11-21 16:27:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-21 16:27:59,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:27:59,568 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:27:59,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:27:59,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:27:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:27:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash 373385373, now seen corresponding path program 1 times [2022-11-21 16:27:59,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:27:59,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724228925] [2022-11-21 16:27:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:27:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:27:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:28:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:28:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:28:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:28:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:28:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:28:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:28:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:28:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:28:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:28:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:28:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:28:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:28:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:28:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:28:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:28:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:28:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:28:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:28:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:28:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:28:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:28:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:28:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:28:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:28:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-21 16:28:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-21 16:28:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 16:28:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-21 16:28:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-21 16:28:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-21 16:28:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-21 16:28:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-21 16:28:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-21 16:28:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-21 16:28:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-21 16:28:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-21 16:28:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-21 16:28:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-21 16:28:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-21 16:28:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-21 16:28:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-21 16:28:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-21 16:28:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-21 16:28:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-21 16:28:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-21 16:28:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-21 16:28:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-21 16:28:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-21 16:28:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-21 16:28:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-21 16:28:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:28:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-11-21 16:28:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-21 16:28:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-11-21 16:28:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 96 proven. 13 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-11-21 16:28:04,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:28:04,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724228925] [2022-11-21 16:28:04,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724228925] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:28:04,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533202003] [2022-11-21 16:28:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:28:04,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:28:04,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:28:04,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:28:04,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_394ba3bc-642a-4d4a-85f1-4b2ea246a5de/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:28:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:28:05,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:28:05,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:28:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 2473 proven. 0 refuted. 0 times theorem prover too weak. 2442 trivial. 0 not checked. [2022-11-21 16:28:06,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:28:06,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533202003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:28:06,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:28:06,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2022-11-21 16:28:06,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426013060] [2022-11-21 16:28:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:28:06,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:28:06,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:28:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:28:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:28:06,052 INFO L87 Difference]: Start difference. First operand 112277 states and 158025 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-21 16:28:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:28:13,804 INFO L93 Difference]: Finished difference Result 224746 states and 316275 transitions. [2022-11-21 16:28:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:28:13,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 395 [2022-11-21 16:28:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:28:14,642 INFO L225 Difference]: With dead ends: 224746 [2022-11-21 16:28:14,642 INFO L226 Difference]: Without dead ends: 112217 [2022-11-21 16:28:15,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:28:15,015 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 6 mSDsluCounter, 11803 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15739 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:28:15,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15739 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:28:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112217 states.