./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/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_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 11:30:20,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:20,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:20,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:20,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:20,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:20,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:20,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:20,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:20,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:20,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:20,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:20,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:20,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:20,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:20,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:20,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:20,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:20,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:20,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:20,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:20,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:20,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:20,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:20,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:20,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:20,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:20,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:20,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:20,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:20,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:20,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:20,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:20,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:20,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:20,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:20,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:20,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:20,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:20,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:20,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:20,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:30:20,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:20,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:20,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:20,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:20,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:20,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:20,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:20,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:20,325 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:20,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:20,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:20,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:20,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:20,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:20,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:20,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:20,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:20,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:20,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:20,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:20,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:20,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:20,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:20,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:20,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:20,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:20,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:30:20,333 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:20,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:20,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:20,334 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_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe313da0c6b218ced50e4197dc755b81036d59e37c56d6141b10ae8e848ca9fd [2022-11-16 11:30:20,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:20,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:20,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:20,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:20,746 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:20,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/../../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 [2022-11-16 11:30:20,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/data/5ac84e0d8/02758d5805dc49b69b6214523eb14760/FLAG397b03ceb [2022-11-16 11:30:21,966 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:21,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/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 [2022-11-16 11:30:22,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/data/5ac84e0d8/02758d5805dc49b69b6214523eb14760/FLAG397b03ceb [2022-11-16 11:30:22,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/data/5ac84e0d8/02758d5805dc49b69b6214523eb14760 [2022-11-16 11:30:22,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:22,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:22,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:22,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:22,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:22,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:22" (1/1) ... [2022-11-16 11:30:22,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1ad79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:22, skipping insertion in model container [2022-11-16 11:30:22,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:22" (1/1) ... [2022-11-16 11:30:22,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:22,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:23,316 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-11-16 11:30:23,317 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-11-16 11:30:24,339 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/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] [2022-11-16 11:30:26,866 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 11:30:26,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:26,989 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:27,168 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5693] [2022-11-16 11:30:27,168 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5694-5695] [2022-11-16 11:30:27,196 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/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] [2022-11-16 11:30:27,817 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 11:30:27,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:28,091 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:28,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28 WrapperNode [2022-11-16 11:30:28,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:28,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:28,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:28,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:28,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,505 INFO L138 Inliner]: procedures = 454, calls = 2280, calls flagged for inlining = 217, calls inlined = 215, statements flattened = 7423 [2022-11-16 11:30:28,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:28,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:28,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:28,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:28,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:28,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:29,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:29,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:29,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:29,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:29,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (1/1) ... [2022-11-16 11:30:29,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:29,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:29,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:29,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 11:30:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 11:30:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 11:30:29,119 INFO L130 BoogieDeclarations]: Found specification of procedure unix_gc [2022-11-16 11:30:29,119 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_gc [2022-11-16 11:30:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure unix_sysctl_unregister [2022-11-16 11:30:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_sysctl_unregister [2022-11-16 11:30:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-16 11:30:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-16 11:30:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2022-11-16 11:30:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2022-11-16 11:30:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 11:30:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 11:30:29,121 INFO L130 BoogieDeclarations]: Found specification of procedure sock_sndtimeo [2022-11-16 11:30:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_sndtimeo [2022-11-16 11:30:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 11:30:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 11:30:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:30:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:30:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_addr [2022-11-16 11:30:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_addr [2022-11-16 11:30:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_lock [2022-11-16 11:30:29,123 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_lock [2022-11-16 11:30:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure unix_set_peek_off [2022-11-16 11:30:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_set_peek_off [2022-11-16 11:30:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-16 11:30:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-16 11:30:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_disconnected [2022-11-16 11:30:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_disconnected [2022-11-16 11:30:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-16 11:30:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-16 11:30:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy [2022-11-16 11:30:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy [2022-11-16 11:30:29,125 INFO L130 BoogieDeclarations]: Found specification of procedure put_cmsg [2022-11-16 11:30:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cmsg [2022-11-16 11:30:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure unix_create1 [2022-11-16 11:30:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_create1 [2022-11-16 11:30:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_poll [2022-11-16 11:30:29,126 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_poll [2022-11-16 11:30:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:30:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:30:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-16 11:30:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-16 11:30:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure unix_recvq_full [2022-11-16 11:30:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_recvq_full [2022-11-16 11:30:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-16 11:30:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-16 11:30:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure unix_shutdown [2022-11-16 11:30:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_shutdown [2022-11-16 11:30:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 11:30:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure scan_children [2022-11-16 11:30:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_children [2022-11-16 11:30:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 11:30:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 11:30:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 11:30:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_fwd [2022-11-16 11:30:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_fwd [2022-11-16 11:30:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-16 11:30:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:30:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure unix_find_other [2022-11-16 11:30:29,134 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_find_other [2022-11-16 11:30:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure unix_scm_to_skb [2022-11-16 11:30:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_scm_to_skb [2022-11-16 11:30:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure scm_send [2022-11-16 11:30:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_send [2022-11-16 11:30:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure sk_set_socket [2022-11-16 11:30:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_set_socket [2022-11-16 11:30:29,136 INFO L130 BoogieDeclarations]: Found specification of procedure unix_autobind [2022-11-16 11:30:29,136 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_autobind [2022-11-16 11:30:29,137 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 11:30:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 11:30:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release_sock [2022-11-16 11:30:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release_sock [2022-11-16 11:30:29,138 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-11-16 11:30:29,138 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-11-16 11:30:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:30:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure unix_mkname [2022-11-16 11:30:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_mkname [2022-11-16 11:30:29,139 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:30:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:30:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:30:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure sock_intr_errno [2022-11-16 11:30:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_intr_errno [2022-11-16 11:30:29,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:30:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_inc [2022-11-16 11:30:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_inc [2022-11-16 11:30:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure unix_may_send [2022-11-16 11:30:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_may_send [2022-11-16 11:30:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:30:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:30:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-16 11:30:29,144 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-16 11:30:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-11-16 11:30:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-11-16 11:30:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure unix_listen [2022-11-16 11:30:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_listen [2022-11-16 11:30:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-16 11:30:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-16 11:30:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-16 11:30:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-16 11:30:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 11:30:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 11:30:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure seq_file_net [2022-11-16 11:30:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_file_net [2022-11-16 11:30:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure kiocb_to_siocb [2022-11-16 11:30:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure kiocb_to_siocb [2022-11-16 11:30:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure init_peercred [2022-11-16 11:30:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure init_peercred [2022-11-16 11:30:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 11:30:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 11:30:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-16 11:30:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-16 11:30:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_sendmsg [2022-11-16 11:30:29,153 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_sendmsg [2022-11-16 11:30:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure unix_stream_connect [2022-11-16 11:30:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_stream_connect [2022-11-16 11:30:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-11-16 11:30:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-11-16 11:30:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_dec [2022-11-16 11:30:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_dec [2022-11-16 11:30:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure unix_skb_len [2022-11-16 11:30:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_skb_len [2022-11-16 11:30:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-11-16 11:30:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-11-16 11:30:29,166 INFO L130 BoogieDeclarations]: Found specification of procedure unix_state_double_unlock [2022-11-16 11:30:29,166 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_state_double_unlock [2022-11-16 11:30:29,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:30:29,166 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 11:30:29,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 11:30:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:30:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:30:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:30:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:30:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:30:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure unix_net_exit [2022-11-16 11:30:29,168 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_net_exit [2022-11-16 11:30:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure unix_detach_fds [2022-11-16 11:30:29,168 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_detach_fds [2022-11-16 11:30:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure touch_atime [2022-11-16 11:30:29,168 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_atime [2022-11-16 11:30:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure unix_seq_stop [2022-11-16 11:30:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_seq_stop [2022-11-16 11:30:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 11:30:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 11:30:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-16 11:30:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-16 11:30:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2022-11-16 11:30:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2022-11-16 11:30:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 11:30:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 11:30:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 11:30:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 11:30:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure unix_accept [2022-11-16 11:30:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_accept [2022-11-16 11:30:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure unix_dgram_recvmsg [2022-11-16 11:30:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_dgram_recvmsg [2022-11-16 11:30:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 11:30:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 11:30:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-16 11:30:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-16 11:30:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure unix_wait_for_peer [2022-11-16 11:30:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_wait_for_peer [2022-11-16 11:30:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure unix_hash_fold [2022-11-16 11:30:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_hash_fold [2022-11-16 11:30:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure scan_inflight [2022-11-16 11:30:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_inflight [2022-11-16 11:30:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-16 11:30:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-16 11:30:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:30:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:30:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-16 11:30:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-16 11:30:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-16 11:30:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-16 11:30:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-16 11:30:29,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-16 11:30:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:30:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:30:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:30:29,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:30:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-16 11:30:29,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-16 11:30:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 11:30:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 11:30:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure unix_peer_get [2022-11-16 11:30:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_peer_get [2022-11-16 11:30:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure unix_bind [2022-11-16 11:30:29,177 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_bind [2022-11-16 11:30:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-11-16 11:30:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-11-16 11:30:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure unix_copy_addr [2022-11-16 11:30:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_copy_addr [2022-11-16 11:30:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-16 11:30:29,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-16 11:30:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-16 11:30:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-16 11:30:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:30:29,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:30:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:30:29,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:30:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure sock_poll_wait [2022-11-16 11:30:29,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_poll_wait [2022-11-16 11:30:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_find_socket_byname [2022-11-16 11:30:29,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_find_socket_byname [2022-11-16 11:30:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure sock_net [2022-11-16 11:30:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_net [2022-11-16 11:30:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 11:30:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 11:30:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:30:29,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:30:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure scm_recv [2022-11-16 11:30:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_recv [2022-11-16 11:30:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure unix_release [2022-11-16 11:30:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_release [2022-11-16 11:30:29,182 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:30:29,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:30:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-16 11:30:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-16 11:30:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_getsockopt [2022-11-16 11:30:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_getsockopt [2022-11-16 11:30:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure sock_alloc_send_pskb [2022-11-16 11:30:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_alloc_send_pskb [2022-11-16 11:30:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:30:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset [2022-11-16 11:30:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset [2022-11-16 11:30:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:30:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:30:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure unix_get_socket [2022-11-16 11:30:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_get_socket [2022-11-16 11:30:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:30:29,185 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unhashed [2022-11-16 11:30:29,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unhashed [2022-11-16 11:30:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-16 11:30:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-16 11:30:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2022-11-16 11:30:29,186 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2022-11-16 11:30:29,186 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-16 11:30:29,188 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-16 11:30:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure scm_set_cred [2022-11-16 11:30:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_set_cred [2022-11-16 11:30:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-16 11:30:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-16 11:30:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-16 11:30:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-16 11:30:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-16 11:30:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-16 11:30:29,194 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wake_async [2022-11-16 11:30:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wake_async [2022-11-16 11:30:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:30:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 11:30:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 11:30:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_add_creds [2022-11-16 11:30:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_add_creds [2022-11-16 11:30:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 11:30:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 11:30:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_free_datagram [2022-11-16 11:30:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_free_datagram [2022-11-16 11:30:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 11:30:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 11:30:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_from_iovec [2022-11-16 11:30:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_from_iovec [2022-11-16 11:30:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure sock_prot_inuse_add [2022-11-16 11:30:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_prot_inuse_add [2022-11-16 11:30:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 11:30:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 11:30:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure sk_next [2022-11-16 11:30:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_next [2022-11-16 11:30:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_insert_socket [2022-11-16 11:30:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_insert_socket [2022-11-16 11:30:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure sock_error [2022-11-16 11:30:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_error [2022-11-16 11:30:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure __unix_remove_socket [2022-11-16 11:30:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __unix_remove_socket [2022-11-16 11:30:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure csum_partial [2022-11-16 11:30:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_partial [2022-11-16 11:30:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 11:30:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 11:30:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-16 11:30:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-16 11:30:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:30:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:30:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure scm_fp_dup [2022-11-16 11:30:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_fp_dup [2022-11-16 11:30:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure security_unix_may_send [2022-11-16 11:30:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure security_unix_may_send [2022-11-16 11:30:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:30:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_mmap [2022-11-16 11:30:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_mmap [2022-11-16 11:30:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure scm_destroy_cred [2022-11-16 11:30:29,205 INFO L138 BoogieDeclarations]: Found implementation of procedure scm_destroy_cred [2022-11-16 11:30:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:30:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:30:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-11-16 11:30:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-11-16 11:30:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up_sync_key [2022-11-16 11:30:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up_sync_key [2022-11-16 11:30:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-16 11:30:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-16 11:30:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure task_tgid [2022-11-16 11:30:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure task_tgid [2022-11-16 11:30:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 11:30:29,207 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 11:30:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-16 11:30:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-16 11:30:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_unix_gc [2022-11-16 11:30:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_unix_gc [2022-11-16 11:30:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-11-16 11:30:29,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-11-16 11:30:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure unix_next_socket [2022-11-16 11:30:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_next_socket [2022-11-16 11:30:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_setsockopt [2022-11-16 11:30:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_setsockopt [2022-11-16 11:30:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure sk_peek_offset_bwd [2022-11-16 11:30:29,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_peek_offset_bwd [2022-11-16 11:30:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:30:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:30:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure unix_writable [2022-11-16 11:30:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_writable [2022-11-16 11:30:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-11-16 11:30:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-11-16 11:30:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure unix_socketpair [2022-11-16 11:30:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_socketpair [2022-11-16 11:30:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure sock_no_sendpage [2022-11-16 11:30:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_no_sendpage [2022-11-16 11:30:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 11:30:29,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 11:30:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure unix_getname [2022-11-16 11:30:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_getname [2022-11-16 11:30:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure unix_ioctl [2022-11-16 11:30:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure unix_ioctl [2022-11-16 11:30:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:30:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_enable [2022-11-16 11:30:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_enable [2022-11-16 11:30:30,846 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:30,851 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:31,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:30:40,492 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:40,518 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:40,519 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:30:40,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:40 BoogieIcfgContainer [2022-11-16 11:30:40,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:40,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:40,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:40,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:40,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:22" (1/3) ... [2022-11-16 11:30:40,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6599c177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:40, skipping insertion in model container [2022-11-16 11:30:40,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:28" (2/3) ... [2022-11-16 11:30:40,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6599c177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:40, skipping insertion in model container [2022-11-16 11:30:40,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:40" (3/3) ... [2022-11-16 11:30:40,548 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 [2022-11-16 11:30:40,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:40,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:30:40,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:40,783 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;@4ac51eb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:40,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:30:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 2757 states, 1902 states have (on average 1.3669821240799158) internal successors, (2600), 2004 states have internal predecessors, (2600), 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) [2022-11-16 11:30:40,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-16 11:30:40,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:40,873 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] [2022-11-16 11:30:40,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:40,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1538957592, now seen corresponding path program 1 times [2022-11-16 11:30:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:40,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811178809] [2022-11-16 11:30:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:40,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:30:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:30:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:30:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:30:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:30:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:30:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:30:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:30:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:30:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:30:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:30:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:30:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:30:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:30:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:30:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:30:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:30:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:30:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:30:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:30:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:30:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:30:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:30:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:30:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:30:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:30:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:30:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:30:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 11:30:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 11:30:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-16 11:30:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-16 11:30:42,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:42,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811178809] [2022-11-16 11:30:42,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811178809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:42,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:42,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:30:42,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512390856] [2022-11-16 11:30:42,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:42,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:42,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:42,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:42,663 INFO L87 Difference]: Start difference. First operand has 2757 states, 1902 states have (on average 1.3669821240799158) internal successors, (2600), 2004 states have internal predecessors, (2600), 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 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) [2022-11-16 11:30:55,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:55,790 INFO L93 Difference]: Finished difference Result 8300 states and 12274 transitions. [2022-11-16 11:30:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:30:55,796 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 [2022-11-16 11:30:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:55,875 INFO L225 Difference]: With dead ends: 8300 [2022-11-16 11:30:55,876 INFO L226 Difference]: Without dead ends: 5495 [2022-11-16 11:30:55,903 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 [2022-11-16 11:30:55,908 INFO L413 NwaCegarLoop]: 3497 mSDtfsCounter, 5026 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 1702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5603 SdHoareTripleChecker+Valid, 7471 SdHoareTripleChecker+Invalid, 5667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:55,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5603 Valid, 7471 Invalid, 5667 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1702 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-16 11:30:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5495 states. [2022-11-16 11:30:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5495 to 5252. [2022-11-16 11:30:56,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5252 states, 3644 states have (on average 1.3515367727771679) internal successors, (4925), 3819 states have internal predecessors, (4925), 1299 states have call successors, (1299), 309 states have call predecessors, (1299), 308 states have return successors, (1298), 1269 states have call predecessors, (1298), 1298 states have call successors, (1298) [2022-11-16 11:30:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 7522 transitions. [2022-11-16 11:30:56,472 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 7522 transitions. Word has length 213 [2022-11-16 11:30:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:56,478 INFO L495 AbstractCegarLoop]: Abstraction has 5252 states and 7522 transitions. [2022-11-16 11:30:56,478 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) [2022-11-16 11:30:56,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 7522 transitions. [2022-11-16 11:30:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 11:30:56,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:56,495 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] [2022-11-16 11:30:56,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:30:56,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:56,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash -618861751, now seen corresponding path program 1 times [2022-11-16 11:30:56,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:56,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831419938] [2022-11-16 11:30:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:56,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:30:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:30:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:30:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:30:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:30:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:30:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:30:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:30:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:30:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:30:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:30:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:30:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:30:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:30:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:30:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:30:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:30:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:30:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:30:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:30:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:30:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:30:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:30:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:30:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:30:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:30:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:30:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:30:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 11:30:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 11:30:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 11:30:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-16 11:30:57,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:57,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831419938] [2022-11-16 11:30:57,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831419938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:57,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:57,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:30:57,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068646606] [2022-11-16 11:30:57,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:57,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:57,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:57,511 INFO L87 Difference]: Start difference. First operand 5252 states and 7522 transitions. 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) [2022-11-16 11:31:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:10,375 INFO L93 Difference]: Finished difference Result 15381 states and 22121 transitions. [2022-11-16 11:31:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:31:10,376 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 [2022-11-16 11:31:10,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:10,487 INFO L225 Difference]: With dead ends: 15381 [2022-11-16 11:31:10,487 INFO L226 Difference]: Without dead ends: 10188 [2022-11-16 11:31:10,530 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 [2022-11-16 11:31:10,532 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 4648 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 3932 mSolverCounterSat, 1628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5169 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 5560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1628 IncrementalHoareTripleChecker+Valid, 3932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:10,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5169 Valid, 7498 Invalid, 5560 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1628 Valid, 3932 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2022-11-16 11:31:10,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10188 states. [2022-11-16 11:31:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10188 to 9705. [2022-11-16 11:31:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9705 states, 6735 states have (on average 1.3480326651818857) internal successors, (9079), 7074 states have internal predecessors, (9079), 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) [2022-11-16 11:31:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9705 states to 9705 states and 13792 transitions. [2022-11-16 11:31:11,406 INFO L78 Accepts]: Start accepts. Automaton has 9705 states and 13792 transitions. Word has length 214 [2022-11-16 11:31:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:11,407 INFO L495 AbstractCegarLoop]: Abstraction has 9705 states and 13792 transitions. [2022-11-16 11:31:11,409 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) [2022-11-16 11:31:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9705 states and 13792 transitions. [2022-11-16 11:31:11,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-16 11:31:11,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:11,417 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] [2022-11-16 11:31:11,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:31:11,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:11,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1340557306, now seen corresponding path program 1 times [2022-11-16 11:31:11,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:11,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484527051] [2022-11-16 11:31:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:11,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:31:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:31:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:31:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:31:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:31:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:31:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:31:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:31:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:31:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:31:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:31:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:31:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:31:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:31:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:31:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:31:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:31:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:31:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:31:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:31:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:31:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:31:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:31:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:31:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:31:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:31:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:31:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:31:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-16 11:31:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 11:31:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-16 11:31:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1516 trivial. 0 not checked. [2022-11-16 11:31:12,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:12,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484527051] [2022-11-16 11:31:12,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484527051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:12,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:12,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:31:12,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840042301] [2022-11-16 11:31:12,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:12,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:31:12,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:31:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:31:12,443 INFO L87 Difference]: Start difference. First operand 9705 states and 13792 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) [2022-11-16 11:31:25,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:25,603 INFO L93 Difference]: Finished difference Result 27247 states and 38877 transitions. [2022-11-16 11:31:25,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:31:25,604 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 [2022-11-16 11:31:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:25,761 INFO L225 Difference]: With dead ends: 27247 [2022-11-16 11:31:25,762 INFO L226 Difference]: Without dead ends: 17601 [2022-11-16 11:31:25,826 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 [2022-11-16 11:31:25,827 INFO L413 NwaCegarLoop]: 4962 mSDtfsCounter, 4265 mSDsluCounter, 4632 mSDsCounter, 0 mSdLazyCounter, 4941 mSolverCounterSat, 1266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 9594 SdHoareTripleChecker+Invalid, 6207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1266 IncrementalHoareTripleChecker+Valid, 4941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:25,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 9594 Invalid, 6207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1266 Valid, 4941 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-11-16 11:31:25,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17601 states. [2022-11-16 11:31:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17601 to 16750. [2022-11-16 11:31:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16750 states, 11671 states have (on average 1.3451289521035044) internal successors, (15699), 12255 states have internal predecessors, (15699), 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) [2022-11-16 11:31:27,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16750 states to 16750 states and 23668 transitions. [2022-11-16 11:31:27,106 INFO L78 Accepts]: Start accepts. Automaton has 16750 states and 23668 transitions. Word has length 220 [2022-11-16 11:31:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:27,109 INFO L495 AbstractCegarLoop]: Abstraction has 16750 states and 23668 transitions. [2022-11-16 11:31:27,109 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) [2022-11-16 11:31:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16750 states and 23668 transitions. [2022-11-16 11:31:27,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-16 11:31:27,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:27,141 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] [2022-11-16 11:31:27,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:31:27,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:27,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:27,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1303458708, now seen corresponding path program 1 times [2022-11-16 11:31:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:27,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316325912] [2022-11-16 11:31:27,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:27,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:31:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:31:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:31:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:31:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:31:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:31:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:31:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:31:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:31:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:31:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:31:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:31:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:31:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:31:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:31:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:31:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:31:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:31:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:31:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:31:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:31:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:31:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:31:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:31:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:31:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:31:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:31:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:31:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 11:31:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 11:31:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 11:31:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 11:31:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 11:31:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 11:31:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 11:31:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-16 11:31:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 11:31:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 11:31:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-16 11:31:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-16 11:31:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-16 11:31:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-16 11:31:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-16 11:31:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-16 11:31:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-16 11:31:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-16 11:31:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-16 11:31:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-16 11:31:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-16 11:31:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-16 11:31:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-11-16 11:31:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-11-16 11:31:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-11-16 11:31:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-11-16 11:31:29,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:29,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316325912] [2022-11-16 11:31:29,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316325912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:29,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:29,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:31:29,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708592733] [2022-11-16 11:31:29,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:29,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:31:29,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:29,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:31:29,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:31:29,486 INFO L87 Difference]: Start difference. First operand 16750 states and 23668 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) [2022-11-16 11:31:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:40,862 INFO L93 Difference]: Finished difference Result 29329 states and 41828 transitions. [2022-11-16 11:31:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:31:40,863 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 [2022-11-16 11:31:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:41,092 INFO L225 Difference]: With dead ends: 29329 [2022-11-16 11:31:41,093 INFO L226 Difference]: Without dead ends: 29326 [2022-11-16 11:31:41,113 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 [2022-11-16 11:31:41,114 INFO L413 NwaCegarLoop]: 3474 mSDtfsCounter, 4150 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 1387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4502 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 5121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1387 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:41,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4502 Valid, 7139 Invalid, 5121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1387 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-16 11:31:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29326 states. [2022-11-16 11:31:42,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29326 to 27609. [2022-11-16 11:31:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27609 states, 19583 states have (on average 1.3500485114640248) internal successors, (26438), 20455 states have internal predecessors, (26438), 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) [2022-11-16 11:31:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27609 states to 27609 states and 38821 transitions. [2022-11-16 11:31:42,984 INFO L78 Accepts]: Start accepts. Automaton has 27609 states and 38821 transitions. Word has length 369 [2022-11-16 11:31:42,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:42,986 INFO L495 AbstractCegarLoop]: Abstraction has 27609 states and 38821 transitions. [2022-11-16 11:31:42,986 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) [2022-11-16 11:31:42,987 INFO L276 IsEmpty]: Start isEmpty. Operand 27609 states and 38821 transitions. [2022-11-16 11:31:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-16 11:31:43,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:43,077 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] [2022-11-16 11:31:43,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:31:43,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:43,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:43,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1011776204, now seen corresponding path program 1 times [2022-11-16 11:31:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:43,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662425365] [2022-11-16 11:31:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:43,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:31:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:31:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:31:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:31:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:31:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:31:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:31:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:31:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:31:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:31:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:31:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:31:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:31:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:31:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:31:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:31:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:31:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:31:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:31:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:31:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:31:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:31:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:31:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:31:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:31:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:31:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:31:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:31:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-16 11:31:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:31:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-16 11:31:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-16 11:31:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-16 11:31:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-16 11:31:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:43,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-16 11:31:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-16 11:31:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-16 11:31:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-11-16 11:31:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-16 11:31:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-16 11:31:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-16 11:31:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-16 11:31:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-11-16 11:31:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-11-16 11:31:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-16 11:31:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-11-16 11:31:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-11-16 11:31:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-11-16 11:31:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-11-16 11:31:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-11-16 11:31:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-11-16 11:31:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-11-16 11:31:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-11-16 11:31:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-16 11:31:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-11-16 11:31:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2022-11-16 11:31:44,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:44,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662425365] [2022-11-16 11:31:44,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662425365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:44,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:44,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:44,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477046955] [2022-11-16 11:31:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:44,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:31:44,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:31:44,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:31:44,552 INFO L87 Difference]: Start difference. First operand 27609 states and 38821 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) [2022-11-16 11:32:02,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:02,890 INFO L93 Difference]: Finished difference Result 85764 states and 121836 transitions. [2022-11-16 11:32:02,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:32:02,892 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 [2022-11-16 11:32:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:03,470 INFO L225 Difference]: With dead ends: 85764 [2022-11-16 11:32:03,470 INFO L226 Difference]: Without dead ends: 58223 [2022-11-16 11:32:03,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:32:03,620 INFO L413 NwaCegarLoop]: 4769 mSDtfsCounter, 5807 mSDsluCounter, 6765 mSDsCounter, 0 mSdLazyCounter, 7072 mSolverCounterSat, 3086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6470 SdHoareTripleChecker+Valid, 11534 SdHoareTripleChecker+Invalid, 10158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3086 IncrementalHoareTripleChecker+Valid, 7072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:03,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6470 Valid, 11534 Invalid, 10158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3086 Valid, 7072 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2022-11-16 11:32:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58223 states. [2022-11-16 11:32:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58223 to 55866. [2022-11-16 11:32:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55866 states, 39517 states have (on average 1.348634764784776) internal successors, (53294), 41463 states have internal predecessors, (53294), 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) [2022-11-16 11:32:08,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55866 states to 55866 states and 78791 transitions. [2022-11-16 11:32:08,387 INFO L78 Accepts]: Start accepts. Automaton has 55866 states and 78791 transitions. Word has length 395 [2022-11-16 11:32:08,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:08,399 INFO L495 AbstractCegarLoop]: Abstraction has 55866 states and 78791 transitions. [2022-11-16 11:32:08,403 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) [2022-11-16 11:32:08,403 INFO L276 IsEmpty]: Start isEmpty. Operand 55866 states and 78791 transitions. [2022-11-16 11:32:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-16 11:32:08,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:08,602 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] [2022-11-16 11:32:08,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:32:08,603 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:08,604 INFO L85 PathProgramCache]: Analyzing trace with hash -513795124, now seen corresponding path program 2 times [2022-11-16 11:32:08,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:08,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557009883] [2022-11-16 11:32:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:08,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:32:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:32:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:32:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:32:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:32:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:32:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:32:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:32:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:32:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:32:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:32:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:32:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:32:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:32:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:32:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:32:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:32:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:32:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:32:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:32:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:32:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:32:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:32:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:32:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:32:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:32:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:32:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:32:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 11:32:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 11:32:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 11:32:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 11:32:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 11:32:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 11:32:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 11:32:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-16 11:32:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 11:32:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 11:32:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-16 11:32:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-16 11:32:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-16 11:32:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-16 11:32:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-16 11:32:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-16 11:32:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-16 11:32:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-16 11:32:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-16 11:32:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-16 11:32:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-16 11:32:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-16 11:32:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-16 11:32:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-11-16 11:32:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-16 11:32:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-11-16 11:32:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:10,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4915 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2022-11-16 11:32:10,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:10,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557009883] [2022-11-16 11:32:10,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557009883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:10,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:10,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:32:10,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577990026] [2022-11-16 11:32:10,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:10,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:32:10,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:10,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:32:10,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:32:10,138 INFO L87 Difference]: Start difference. First operand 55866 states and 78791 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 3 states have internal predecessors, (125), 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) [2022-11-16 11:32:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:35,999 INFO L93 Difference]: Finished difference Result 172144 states and 244724 transitions. [2022-11-16 11:32:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:32:36,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 3 states have internal predecessors, (125), 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 [2022-11-16 11:32:36,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:37,378 INFO L225 Difference]: With dead ends: 172144 [2022-11-16 11:32:37,378 INFO L226 Difference]: Without dead ends: 116346 [2022-11-16 11:32:37,663 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 [2022-11-16 11:32:37,664 INFO L413 NwaCegarLoop]: 5250 mSDtfsCounter, 5639 mSDsluCounter, 7473 mSDsCounter, 0 mSdLazyCounter, 7440 mSolverCounterSat, 2854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6271 SdHoareTripleChecker+Valid, 12723 SdHoareTripleChecker+Invalid, 10294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2854 IncrementalHoareTripleChecker+Valid, 7440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:37,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6271 Valid, 12723 Invalid, 10294 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2854 Valid, 7440 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2022-11-16 11:32:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116346 states. [2022-11-16 11:32:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116346 to 111637. [2022-11-16 11:32:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111637 states, 78973 states have (on average 1.3486887923720765) internal successors, (106510), 82873 states have internal predecessors, (106510), 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) [2022-11-16 11:32:46,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111637 states to 111637 states and 157441 transitions. [2022-11-16 11:32:46,988 INFO L78 Accepts]: Start accepts. Automaton has 111637 states and 157441 transitions. Word has length 395 [2022-11-16 11:32:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:46,992 INFO L495 AbstractCegarLoop]: Abstraction has 111637 states and 157441 transitions. [2022-11-16 11:32:46,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 3 states have internal predecessors, (125), 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) [2022-11-16 11:32:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 111637 states and 157441 transitions. [2022-11-16 11:32:47,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-16 11:32:47,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:47,142 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] [2022-11-16 11:32:47,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:32:47,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:47,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:47,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1879074349, now seen corresponding path program 1 times [2022-11-16 11:32:47,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:47,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278892032] [2022-11-16 11:32:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:47,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:32:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:32:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:32:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:32:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:32:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:32:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:32:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:32:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:32:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:32:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:32:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:32:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:32:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:32:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-16 11:32:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 11:32:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:32:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:32:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:32:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:32:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-16 11:32:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-16 11:32:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-16 11:32:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-16 11:32:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 11:32:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 11:32:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 11:32:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-16 11:32:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 11:32:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 11:32:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 11:32:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 11:32:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-11-16 11:32:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-16 11:32:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-11-16 11:32:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-11-16 11:32:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-16 11:32:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-11-16 11:32:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-16 11:32:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-16 11:32:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-16 11:32:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-16 11:32:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-16 11:32:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-16 11:32:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-16 11:32:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-16 11:32:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-16 11:32:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-16 11:32:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-16 11:32:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-11-16 11:32:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-11-16 11:32:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:32:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-11-16 11:32:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-11-16 11:32:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-11-16 11:32:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 4806 trivial. 0 not checked. [2022-11-16 11:32:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:52,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278892032] [2022-11-16 11:32:52,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278892032] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:32:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767064877] [2022-11-16 11:32:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:52,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:32:52,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:52,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:32:52,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e36a11-cf35-48ba-affa-bcbe9bc0ea40/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:32:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:54,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 4064 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:32:54,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:32:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4919 backedges. 2475 proven. 0 refuted. 0 times theorem prover too weak. 2444 trivial. 0 not checked. [2022-11-16 11:32:55,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:32:55,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767064877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:55,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:32:55,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2022-11-16 11:32:55,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697971875] [2022-11-16 11:32:55,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:55,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:32:55,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:55,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:32:55,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:32:55,151 INFO L87 Difference]: Start difference. First operand 111637 states and 157441 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2022-11-16 11:33:04,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:04,450 INFO L93 Difference]: Finished difference Result 223466 states and 315107 transitions. [2022-11-16 11:33:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:33:04,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 396 [2022-11-16 11:33:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:05,251 INFO L225 Difference]: With dead ends: 223466 [2022-11-16 11:33:05,252 INFO L226 Difference]: Without dead ends: 111577 [2022-11-16 11:33:05,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:33:05,689 INFO L413 NwaCegarLoop]: 3922 mSDtfsCounter, 6 mSDsluCounter, 11761 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15683 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:05,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15683 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:33:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111577 states.