./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa --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 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:28:46,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:28:46,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:28:46,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:28:46,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:28:46,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:28:46,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:28:46,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:28:46,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:28:46,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:28:46,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:28:46,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:28:46,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:28:46,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:28:46,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:28:46,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:28:46,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:28:46,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:28:46,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:28:46,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:28:46,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:28:46,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:28:46,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:28:46,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:28:46,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:28:46,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:28:46,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:28:46,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:28:46,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:28:46,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:28:46,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:28:46,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:28:46,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:28:46,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:28:46,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:28:46,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:28:46,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:28:46,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:28:46,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:28:46,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:28:46,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:28:46,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 20:28:46,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:28:46,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:28:46,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:28:46,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:28:46,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:28:46,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:28:46,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:28:46,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:28:46,308 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:28:46,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:28:46,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:28:46,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:28:46,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:28:46,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:28:46,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:28:46,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:28:46,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:28:46,311 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_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 [2021-12-06 20:28:46,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:28:46,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:28:46,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:28:46,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:28:46,513 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:28:46,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-06 20:28:46,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/6b64e402f/49b4e5dffc4f4521ae1d6aa5f4b4e983/FLAGe857b565a [2021-12-06 20:28:47,079 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:28:47,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-06 20:28:47,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/6b64e402f/49b4e5dffc4f4521ae1d6aa5f4b4e983/FLAGe857b565a [2021-12-06 20:28:47,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/6b64e402f/49b4e5dffc4f4521ae1d6aa5f4b4e983 [2021-12-06 20:28:47,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:28:47,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:28:47,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:28:47,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:28:47,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:28:47,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:28:47" (1/1) ... [2021-12-06 20:28:47,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10fe1a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:47, skipping insertion in model container [2021-12-06 20:28:47,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:28:47" (1/1) ... [2021-12-06 20:28:47,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:28:47,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:28:47,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-06 20:28:47,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:28:47,989 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:28:48,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-06 20:28:48,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:28:48,127 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:28:48,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48 WrapperNode [2021-12-06 20:28:48,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:28:48,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:28:48,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:28:48,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:28:48,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,180 INFO L137 Inliner]: procedures = 84, calls = 171, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 522 [2021-12-06 20:28:48,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:28:48,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:28:48,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:28:48,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:28:48,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:28:48,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:28:48,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:28:48,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:28:48,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (1/1) ... [2021-12-06 20:28:48,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:28:48,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:28:48,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:28:48,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:28:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:28:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 20:28:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:28:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 20:28:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 20:28:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-06 20:28:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 20:28:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 20:28:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 20:28:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-06 20:28:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-12-06 20:28:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 20:28:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 20:28:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:28:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:28:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:28:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-06 20:28:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-06 20:28:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 20:28:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:28:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:28:48,455 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:28:48,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:28:48,537 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 20:28:48,883 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:28:48,890 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:28:48,890 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 20:28:48,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:28:48 BoogieIcfgContainer [2021-12-06 20:28:48,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:28:48,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:28:48,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:28:48,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:28:48,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:28:47" (1/3) ... [2021-12-06 20:28:48,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c927350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:28:48, skipping insertion in model container [2021-12-06 20:28:48,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:48" (2/3) ... [2021-12-06 20:28:48,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c927350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:28:48, skipping insertion in model container [2021-12-06 20:28:48,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:28:48" (3/3) ... [2021-12-06 20:28:48,898 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-06 20:28:48,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:28:48,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:28:48,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:28:48,950 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:28:48,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:28:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 151 states have internal predecessors, (208), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-06 20:28:48,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 20:28:48,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:48,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:48,986 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:48,990 INFO L85 PathProgramCache]: Analyzing trace with hash 995609139, now seen corresponding path program 1 times [2021-12-06 20:28:48,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:48,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304227579] [2021-12-06 20:28:48,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:48,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:28:49,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:49,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304227579] [2021-12-06 20:28:49,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304227579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:49,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:49,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:28:49,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841895993] [2021-12-06 20:28:49,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:49,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:28:49,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:49,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:28:49,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:28:49,283 INFO L87 Difference]: Start difference. First operand has 183 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 151 states have internal predecessors, (208), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:28:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:49,472 INFO L93 Difference]: Finished difference Result 373 states and 538 transitions. [2021-12-06 20:28:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:28:49,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-12-06 20:28:49,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:49,482 INFO L225 Difference]: With dead ends: 373 [2021-12-06 20:28:49,482 INFO L226 Difference]: Without dead ends: 185 [2021-12-06 20:28:49,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:28:49,488 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 64 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:49,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 383 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:28:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-06 20:28:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 173. [2021-12-06 20:28:49,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 141 states have internal predecessors, (191), 22 states have call successors, (22), 10 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-12-06 20:28:49,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 234 transitions. [2021-12-06 20:28:49,539 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 234 transitions. Word has length 35 [2021-12-06 20:28:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:49,540 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 234 transitions. [2021-12-06 20:28:49,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:28:49,540 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 234 transitions. [2021-12-06 20:28:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 20:28:49,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:49,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:49,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:28:49,543 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash 861595633, now seen corresponding path program 1 times [2021-12-06 20:28:49,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:49,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865045690] [2021-12-06 20:28:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:49,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:28:49,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:49,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865045690] [2021-12-06 20:28:49,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865045690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:49,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:49,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:28:49,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482220707] [2021-12-06 20:28:49,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:49,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:28:49,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:28:49,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:28:49,663 INFO L87 Difference]: Start difference. First operand 173 states and 234 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:28:49,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:49,986 INFO L93 Difference]: Finished difference Result 510 states and 698 transitions. [2021-12-06 20:28:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:28:49,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-12-06 20:28:49,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:49,992 INFO L225 Difference]: With dead ends: 510 [2021-12-06 20:28:49,992 INFO L226 Difference]: Without dead ends: 345 [2021-12-06 20:28:49,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:28:49,995 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 251 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:49,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 700 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:28:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-12-06 20:28:50,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 321. [2021-12-06 20:28:50,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 262 states have (on average 1.3587786259541985) internal successors, (356), 262 states have internal predecessors, (356), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-12-06 20:28:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 435 transitions. [2021-12-06 20:28:50,037 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 435 transitions. Word has length 35 [2021-12-06 20:28:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:50,038 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 435 transitions. [2021-12-06 20:28:50,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:28:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 435 transitions. [2021-12-06 20:28:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 20:28:50,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:50,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:50,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:28:50,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:50,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:50,042 INFO L85 PathProgramCache]: Analyzing trace with hash 32458826, now seen corresponding path program 1 times [2021-12-06 20:28:50,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:50,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870932417] [2021-12-06 20:28:50,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:50,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:28:50,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:50,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870932417] [2021-12-06 20:28:50,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870932417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:50,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:50,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:28:50,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108095869] [2021-12-06 20:28:50,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:50,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:28:50,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:50,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:28:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:28:50,158 INFO L87 Difference]: Start difference. First operand 321 states and 435 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:28:50,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:50,422 INFO L93 Difference]: Finished difference Result 657 states and 894 transitions. [2021-12-06 20:28:50,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:28:50,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-12-06 20:28:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:50,425 INFO L225 Difference]: With dead ends: 657 [2021-12-06 20:28:50,425 INFO L226 Difference]: Without dead ends: 344 [2021-12-06 20:28:50,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:28:50,427 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 406 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:50,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 747 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:28:50,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-12-06 20:28:50,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 320. [2021-12-06 20:28:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 261 states have (on average 1.3486590038314177) internal successors, (352), 261 states have internal predecessors, (352), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-12-06 20:28:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 431 transitions. [2021-12-06 20:28:50,451 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 431 transitions. Word has length 39 [2021-12-06 20:28:50,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:50,451 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 431 transitions. [2021-12-06 20:28:50,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:28:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 431 transitions. [2021-12-06 20:28:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-06 20:28:50,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:50,456 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:28:50,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:28:50,456 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1820755710, now seen corresponding path program 1 times [2021-12-06 20:28:50,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:50,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695450132] [2021-12-06 20:28:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:50,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:28:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 20:28:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-06 20:28:50,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:50,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695450132] [2021-12-06 20:28:50,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695450132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:50,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:50,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:28:50,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394847986] [2021-12-06 20:28:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:50,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:28:50,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:50,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:28:50,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:28:50,604 INFO L87 Difference]: Start difference. First operand 320 states and 431 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 20:28:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:50,942 INFO L93 Difference]: Finished difference Result 985 states and 1347 transitions. [2021-12-06 20:28:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:28:50,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2021-12-06 20:28:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:50,947 INFO L225 Difference]: With dead ends: 985 [2021-12-06 20:28:50,947 INFO L226 Difference]: Without dead ends: 668 [2021-12-06 20:28:50,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:28:50,949 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 250 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:50,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1151 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 20:28:50,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-12-06 20:28:50,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 616. [2021-12-06 20:28:50,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 501 states have (on average 1.3512974051896207) internal successors, (677), 501 states have internal predecessors, (677), 78 states have call successors, (78), 37 states have call predecessors, (78), 36 states have return successors, (81), 77 states have call predecessors, (81), 77 states have call successors, (81) [2021-12-06 20:28:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 836 transitions. [2021-12-06 20:28:50,979 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 836 transitions. Word has length 80 [2021-12-06 20:28:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:50,980 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 836 transitions. [2021-12-06 20:28:50,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 20:28:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 836 transitions. [2021-12-06 20:28:50,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-06 20:28:50,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:50,986 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:28:50,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:28:50,986 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:50,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:50,986 INFO L85 PathProgramCache]: Analyzing trace with hash 943577961, now seen corresponding path program 1 times [2021-12-06 20:28:50,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:50,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373309228] [2021-12-06 20:28:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:50,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:28:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 20:28:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 20:28:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 20:28:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-06 20:28:51,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:51,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373309228] [2021-12-06 20:28:51,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373309228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:51,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:51,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 20:28:51,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539925968] [2021-12-06 20:28:51,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:51,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:28:51,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:51,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:28:51,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:28:51,209 INFO L87 Difference]: Start difference. First operand 616 states and 836 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 20:28:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:51,671 INFO L93 Difference]: Finished difference Result 1382 states and 1911 transitions. [2021-12-06 20:28:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 20:28:51,671 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 127 [2021-12-06 20:28:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:51,678 INFO L225 Difference]: With dead ends: 1382 [2021-12-06 20:28:51,678 INFO L226 Difference]: Without dead ends: 774 [2021-12-06 20:28:51,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:28:51,681 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 197 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:51,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2705 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 20:28:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2021-12-06 20:28:51,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 620. [2021-12-06 20:28:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 503 states have (on average 1.333996023856859) internal successors, (671), 505 states have internal predecessors, (671), 78 states have call successors, (78), 37 states have call predecessors, (78), 38 states have return successors, (83), 77 states have call predecessors, (83), 77 states have call successors, (83) [2021-12-06 20:28:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 832 transitions. [2021-12-06 20:28:51,727 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 832 transitions. Word has length 127 [2021-12-06 20:28:51,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:51,727 INFO L470 AbstractCegarLoop]: Abstraction has 620 states and 832 transitions. [2021-12-06 20:28:51,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 20:28:51,728 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 832 transitions. [2021-12-06 20:28:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-06 20:28:51,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:51,730 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:28:51,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:28:51,730 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:51,731 INFO L85 PathProgramCache]: Analyzing trace with hash 872950130, now seen corresponding path program 1 times [2021-12-06 20:28:51,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:51,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42733647] [2021-12-06 20:28:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:51,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:28:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 20:28:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 20:28:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 20:28:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 20:28:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:28:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:28:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:28:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:28:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 20:28:51,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:28:51,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42733647] [2021-12-06 20:28:51,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42733647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:28:51,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:28:51,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:28:51,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070712922] [2021-12-06 20:28:51,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:28:51,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:28:51,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:28:51,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:28:51,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:28:51,924 INFO L87 Difference]: Start difference. First operand 620 states and 832 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 20:28:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:28:52,178 INFO L93 Difference]: Finished difference Result 1270 states and 1717 transitions. [2021-12-06 20:28:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:28:52,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 133 [2021-12-06 20:28:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:28:52,182 INFO L225 Difference]: With dead ends: 1270 [2021-12-06 20:28:52,182 INFO L226 Difference]: Without dead ends: 657 [2021-12-06 20:28:52,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:28:52,184 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 73 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:28:52,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 804 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 20:28:52,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-12-06 20:28:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 621. [2021-12-06 20:28:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 504 states have (on average 1.3333333333333333) internal successors, (672), 506 states have internal predecessors, (672), 78 states have call successors, (78), 37 states have call predecessors, (78), 38 states have return successors, (83), 77 states have call predecessors, (83), 77 states have call successors, (83) [2021-12-06 20:28:52,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 833 transitions. [2021-12-06 20:28:52,211 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 833 transitions. Word has length 133 [2021-12-06 20:28:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:28:52,212 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 833 transitions. [2021-12-06 20:28:52,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 20:28:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 833 transitions. [2021-12-06 20:28:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 20:28:52,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:28:52,214 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:28:52,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:28:52,214 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:28:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:28:52,215 INFO L85 PathProgramCache]: Analyzing trace with hash 123812154, now seen corresponding path program 1 times [2021-12-06 20:28:52,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:28:52,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073826640] [2021-12-06 20:28:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:28:52,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:28:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:28:52,272 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:28:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:28:52,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:28:52,381 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:28:52,381 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:28:52,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:28:52,385 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:28:52,387 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:28:52,404 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,405 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,405 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,405 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,406 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,407 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,408 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,409 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,410 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,410 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,410 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,410 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,417 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,418 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,418 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,418 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,418 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,419 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,420 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,420 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,420 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,420 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,422 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,423 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,424 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,425 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,426 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,427 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,428 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,429 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,442 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,442 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-06 20:28:52,442 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-06 20:28:52,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:28:52 BoogieIcfgContainer [2021-12-06 20:28:52,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:28:52,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:28:52,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:28:52,515 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:28:52,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:28:48" (3/4) ... [2021-12-06 20:28:52,518 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:28:52,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:28:52,519 INFO L158 Benchmark]: Toolchain (without parser) took 5182.54ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2021-12-06 20:28:52,519 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:28:52,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.70ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 56.1MB in the end (delta: 23.4MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2021-12-06 20:28:52,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.91ms. Allocated memory is still 102.8MB. Free memory was 56.1MB in the beginning and 51.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 20:28:52,520 INFO L158 Benchmark]: Boogie Preprocessor took 48.07ms. Allocated memory is still 102.8MB. Free memory was 51.9MB in the beginning and 47.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 20:28:52,520 INFO L158 Benchmark]: RCFGBuilder took 663.06ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 54.3MB in the end (delta: -6.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-12-06 20:28:52,521 INFO L158 Benchmark]: TraceAbstraction took 3620.98ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 53.5MB in the beginning and 78.3MB in the end (delta: -24.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2021-12-06 20:28:52,521 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 151.0MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:28:52,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.70ms. Allocated memory is still 102.8MB. Free memory was 79.4MB in the beginning and 56.1MB in the end (delta: 23.4MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.91ms. Allocated memory is still 102.8MB. Free memory was 56.1MB in the beginning and 51.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.07ms. Allocated memory is still 102.8MB. Free memory was 51.9MB in the beginning and 47.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 663.06ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 54.3MB in the end (delta: -6.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3620.98ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 53.5MB in the beginning and 78.3MB in the end (delta: -24.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 151.0MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 5332]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5457. Possible FailurePath: [L5355] int ldv_state_variable_1 ; [L5356] int LDV_IN_INTERRUPT = 1; [L5357] struct archdr *rfc1051_proto_group0 ; [L5358] int ref_cnt ; [L5359] int ldv_state_variable_0 ; [L5360] struct net_device *rfc1051_proto_group1 ; [L5379-L5382] static struct ArcProto rfc1051_proto = {115, 507, 1, & rx, & build_header, & prepare_tx, (int (*)(struct net_device * , int ))0, (int (*)(struct net_device * , int ))0}; [L5565] int ldv_retval_0 ; [L5761] Element set_impl[15] ; [L5762] int last_index = 0; [L5896] Set LDV_SKBS ; VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5582] int ldvarg1 ; [L5583] int tmp ; [L5584] unsigned short ldvarg4 ; [L5585] unsigned short tmp___0 ; [L5586] struct sk_buff *ldvarg3 ; [L5587] void *tmp___1 ; [L5588] int ldvarg0 ; [L5589] int tmp___2 ; [L5590] int ldvarg5 ; [L5591] int tmp___3 ; [L5592] uint8_t ldvarg2 ; [L5593] int ldvarg6 ; [L5594] int tmp___4 ; [L5595] int tmp___5 ; [L5596] int tmp___6 ; [L5597] int tmp___7 ; [L5599] tmp = __VERIFIER_nondet_int() [L5600] ldvarg1 = tmp [L5601] tmp___0 = __VERIFIER_nondet_ushort() [L5602] ldvarg4 = tmp___0 VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg4=10, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=10] [L5603] CALL, EXPR ldv_successful_zalloc(232UL) VAL [\old(__size)=232, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=232, __size=232, calloc(1UL, __size)={-2:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=232, __size=232, calloc(1UL, __size)={-2:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, p={-2:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=232, __size=232, calloc(1UL, __size)={-2:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, p={-2:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5276] return p; VAL [\old(__size)=232, \result={-2:0}, __size=232, calloc(1UL, __size)={-2:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, p={-2:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5603] RET, EXPR ldv_successful_zalloc(232UL) VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_successful_zalloc(232UL)={-2:0}, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg4=10, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=10] [L5603] tmp___1 = ldv_successful_zalloc(232UL) [L5604] ldvarg3 = (struct sk_buff *)tmp___1 [L5605] tmp___2 = __VERIFIER_nondet_int() [L5606] ldvarg0 = tmp___2 [L5607] tmp___3 = __VERIFIER_nondet_int() [L5608] ldvarg5 = tmp___3 [L5609] tmp___4 = __VERIFIER_nondet_int() [L5610] ldvarg6 = tmp___4 [L5611] CALL ldv_initialize() [L5915] CALL ldv_set_init(LDV_SKBS) [L5767] set = set_impl [L5768] last_index = 0 VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set={0:0}, set={11:0}, set_impl={11:0}] [L5915] RET ldv_set_init(LDV_SKBS) [L5611] RET ldv_initialize() [L5612] FCALL memset((void *)(& ldvarg2), 0, 1UL) [L5613] ldv_state_variable_1 = 0 [L5614] ref_cnt = 0 [L5615] ldv_state_variable_0 = 1 VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3] [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5651] case 1: VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=1] [L5652] COND TRUE ldv_state_variable_0 != 0 [L5653] tmp___7 = __VERIFIER_nondet_int() [L5655] case 0: [L5663] case 1: VAL [last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=1, tmp___7=1] [L5664] COND TRUE ldv_state_variable_0 == 1 [L5665] CALL, EXPR arcnet_rfc1051_init() [L5387] arc_proto_map[241] = & rfc1051_proto [L5388] EXPR arc_proto_map[241] [L5388] arc_proto_map[240] = arc_proto_map[241] [L5389] COND TRUE (unsigned long )arc_bcast_proto == (unsigned long )arc_proto_default [L5390] arc_bcast_proto = & rfc1051_proto VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5393] return (0); VAL [\result=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5665] RET, EXPR arcnet_rfc1051_init() [L5665] ldv_retval_0 = arcnet_rfc1051_init() [L5666] COND TRUE ldv_retval_0 == 0 [L5667] ldv_state_variable_0 = 3 [L5668] ldv_state_variable_1 = 1 [L5669] CALL ldv_initialize_ArcProto_1() [L5570] void *tmp ; [L5571] void *tmp___0 ; VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5573] CALL, EXPR ldv_successful_zalloc(20UL) VAL [\old(__size)=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=20, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=20, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) VAL [\old(cond)=1, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, cond=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=20, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5276] return p; VAL [\old(__size)=20, \result={-4:0}, __size=20, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-4:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5573] RET, EXPR ldv_successful_zalloc(20UL) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_successful_zalloc(20UL)={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={0:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5573] tmp = ldv_successful_zalloc(20UL) [L5574] rfc1051_proto_group0 = (struct archdr *)tmp VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp={-4:0}] [L5575] CALL, EXPR ldv_successful_zalloc(3264UL) VAL [\old(__size)=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=3264, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=3264, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-5:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) VAL [\old(cond)=1, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, cond=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=3264, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-5:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5276] return p; VAL [\old(__size)=3264, \result={-5:0}, __size=3264, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-5:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}] [L5575] RET, EXPR ldv_successful_zalloc(3264UL) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_successful_zalloc(3264UL)={-5:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={0:0}, set_impl={11:0}, tmp={-4:0}] [L5575] tmp___0 = ldv_successful_zalloc(3264UL) [L5576] rfc1051_proto_group1 = (struct net_device *)tmp___0 VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp={-4:0}, tmp___0={-5:0}] [L5669] RET ldv_initialize_ArcProto_1() [L5672] COND FALSE !(ldv_retval_0 != 0) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=1, tmp___7=1] [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=0, tmp___7=1] [L5620] COND TRUE ldv_state_variable_1 != 0 [L5621] tmp___6 = __VERIFIER_nondet_int() [L5623] case 0: [L5630] case 1: [L5637] case 2: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=0, tmp___6=2, tmp___7=1] [L5638] COND TRUE ldv_state_variable_1 == 1 [L5639] CALL rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5439] struct arcnet_local *lp ; [L5440] void *tmp ; [L5441] struct sk_buff *skb ; [L5442] struct archdr *pkt ; [L5443] int ofs ; [L5444] size_t __len ; [L5445] void *__ret ; VAL [\old(bufnum)=0, \old(length)=-4, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, bufnum=0, dev={-5:0}, dev={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=-4, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5447] CALL, EXPR netdev_priv((struct net_device const *)dev) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, dev={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5365] return ((void *)dev + 3264U); VAL [\result={-5:3264}, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, dev={-5:0}, dev={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5447] RET, EXPR netdev_priv((struct net_device const *)dev) VAL [\old(bufnum)=0, \old(length)=-4, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, bufnum=0, dev={-5:0}, dev={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=-4, netdev_priv((struct net_device const *)dev)={-5:3264}, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5447] tmp = netdev_priv((struct net_device const *)dev) [L5448] lp = (struct arcnet_local *)tmp [L5449] pkt = pkthdr VAL [\old(bufnum)=0, \old(length)=-4, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, bufnum=0, dev={-5:0}, dev={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=-4, lp={-5:3264}, pkt={-4:0}, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp={-5:3264}] [L5450] COND FALSE !(length > 256) [L5453] ofs = 256 - length VAL [\old(bufnum)=0, \old(length)=-4, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, bufnum=0, dev={-5:0}, dev={-5:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=-4, lp={-5:3264}, ofs=260, pkt={-4:0}, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp={-5:3264}] [L5455] CALL, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5741] struct sk_buff *tmp ; VAL [\old(priority)=32, \old(size)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, size=0] [L5743] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5899] void *skb ; [L5900] void *tmp___7 ; VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5902] CALL, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(__size)=248, \old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5274] EXPR, FCALL calloc(1UL, __size) VAL [\old(__size)=248, \old(last_index)=0, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5274] void *p = calloc(1UL, __size); VAL [\old(__size)=248, \old(last_index)=0, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5275] CALL assume_abort_if_not(p != (void *)0) VAL [\old(cond)=1, \old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5271] COND FALSE !(!cond) VAL [\old(cond)=1, \old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, cond=1, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5275] RET assume_abort_if_not(p != (void *)0) VAL [\old(__size)=248, \old(last_index)=0, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5276] return p; VAL [\old(__size)=248, \old(last_index)=0, \result={18446744073709551616:0}, __size=248, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, calloc(1UL, __size)={18446744073709551616:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, p={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5902] RET, EXPR ldv_successful_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_successful_zalloc(sizeof(struct sk_buff___0 ))={18446744073709551616:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5902] tmp___7 = ldv_successful_zalloc(sizeof(struct sk_buff___0 )) [L5903] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, skb={18446744073709551616:0}, tmp___7={18446744073709551616:0}] [L5904] COND FALSE !(! skb) [L5907] CALL ldv_set_add(LDV_SKBS, skb) [L5775] int i ; [L5777] i = 0 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5778] COND TRUE 1 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5779] COND FALSE !(i < last_index) VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5789] COND TRUE last_index < 15 [L5790] set_impl[last_index] = e [L5791] last_index = last_index + 1 VAL [\old(last_index)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, e={18446744073709551616:0}, e={18446744073709551616:0}, i=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5907] RET ldv_set_add(LDV_SKBS, skb) [L5908] return (skb); VAL [\old(last_index)=0, \result={18446744073709551616:0}, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, skb={18446744073709551616:0}, tmp___7={18446744073709551616:0}] [L5743] RET, EXPR ldv_skb_alloc() VAL [\old(priority)=32, \old(size)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_skb_alloc()={18446744073709551616:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, size=0] [L5743] tmp = ldv_skb_alloc() [L5744] COND TRUE \read(*tmp) VAL [\old(priority)=32, \old(size)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, size=0, tmp={18446744073709551616:0}] [L5746] CALL, EXPR ldv_malloc(size) VAL [\old(size)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5280] void *p ; [L5281] void *tmp ; [L5282] int tmp___0 ; [L5284] tmp___0 = __VERIFIER_nondet_int() [L5285] COND TRUE tmp___0 != 0 [L5286] return ((void *)0); VAL [\old(size)=0, \result={0:0}, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, size=0, tmp___0=1] [L5746] RET, EXPR ldv_malloc(size) VAL [\old(priority)=32, \old(size)=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_malloc(size)={0:0}, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, size=0, tmp={18446744073709551616:0}] [L5746] tmp->head = ldv_malloc(size) [L5747] EXPR tmp->head [L5747] tmp->data = tmp->head [L5749] return (tmp); VAL [\old(priority)=32, \old(size)=0, \result={18446744073709551616:0}, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, priority=32, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, size=0, tmp={18446744073709551616:0}] [L5455] RET, EXPR ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5455] skb = ldv_alloc_skb_14((unsigned int )(length + 4), 32U) [L5456] COND TRUE (unsigned long )skb == (unsigned long )((struct sk_buff *)0) VAL [\old(bufnum)=0, \old(length)=-4, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, bufnum=0, dev={-5:0}, dev={-5:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, length=-4, lp={-5:3264}, ofs=260, pkt={-4:0}, pkthdr={-4:0}, pkthdr={-4:0}, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, skb={18446744073709551616:0}, tmp={-5:3264}] [L5457] COND TRUE arcnet_debug & 1 [L5461] EXPR dev->stats.rx_dropped [L5461] dev->stats.rx_dropped = dev->stats.rx_dropped + 1UL [L5639] RET rx(rfc1051_proto_group1, ldvarg1, rfc1051_proto_group0, ldvarg0) [L5640] ldv_state_variable_1 = 1 VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=0, tmp___6=2, tmp___7=1] [L5617] tmp___5 = __VERIFIER_nondet_int() [L5619] case 0: [L5651] case 1: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=1, tmp___6=2, tmp___7=1] [L5652] COND TRUE ldv_state_variable_0 != 0 [L5653] tmp___7 = __VERIFIER_nondet_int() [L5655] case 0: VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=1, tmp___6=2, tmp___7=0] [L5656] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L5657] CALL arcnet_rfc1051_exit() [L5399] FCALL arcnet_unregister_proto(& rfc1051_proto) [L5657] RET arcnet_rfc1051_exit() [L5658] ldv_state_variable_0 = 2 VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldvarg0=-4, ldvarg1=0, ldvarg2={18446744073709551618:0}, ldvarg3={-2:0}, ldvarg4=10, ldvarg5=0, ldvarg6=-3, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp=0, tmp___0=10, tmp___1={-2:0}, tmp___2=-4, tmp___3=0, tmp___4=-3, tmp___5=1, tmp___6=2, tmp___7=0] [L5693] CALL ldv_check_final_state() [L5966] int tmp___7 ; [L5968] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L5857] return (last_index == 0); VAL [\result=0, arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set={0:0}, set={0:0}, set_impl={11:0}] [L5968] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L5968] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L5969] COND FALSE !(\read(tmp___7)) VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}, tmp___7=0] [L5971] CALL ldv_error() VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] [L5332] reach_error() VAL [arc_bcast_proto={10:0}, arc_proto_default={0:0}, arc_proto_map={18446744073709551623:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ref_cnt=0, rfc1051_proto={10:0}, rfc1051_proto_group0={-4:0}, rfc1051_proto_group1={-5:0}, set_impl={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 184 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1318 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1241 mSDsluCounter, 6490 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4901 mSDsCounter, 362 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1498 IncrementalHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 362 mSolverCounterUnsat, 1589 mSDtfsCounter, 1498 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=621occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 302 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 583 NumberOfCodeBlocks, 583 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 443 ConstructedInterpolants, 0 QuantifiedInterpolants, 773 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 233/233 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 20:28:52,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa --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 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:28:54,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:28:54,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:28:54,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:28:54,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:28:54,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:28:54,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:28:54,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:28:54,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:28:54,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:28:54,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:28:54,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:28:54,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:28:54,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:28:54,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:28:54,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:28:54,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:28:54,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:28:54,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:28:54,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:28:54,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:28:54,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:28:54,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:28:54,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:28:54,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:28:54,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:28:54,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:28:54,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:28:54,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:28:54,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:28:54,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:28:54,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:28:54,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:28:54,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:28:54,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:28:54,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:28:54,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:28:54,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:28:54,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:28:54,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:28:54,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:28:54,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 20:28:54,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:28:54,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:28:54,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:28:54,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:28:54,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:28:54,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:28:54,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:28:54,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:28:54,112 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:28:54,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:28:54,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:28:54,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:28:54,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:28:54,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:28:54,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:28:54,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:28:54,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:28:54,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:28:54,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:28:54,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:28:54,114 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:28:54,115 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b3ed2538f968a3e44c5d7fd04ec7d3b91dc8bba4b6c9eed0228eaab08d1208 [2021-12-06 20:28:54,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:28:54,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:28:54,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:28:54,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:28:54,350 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:28:54,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-06 20:28:54,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/880808599/8c80305fedf24c8d87132f59df65b609/FLAGad051bfb2 [2021-12-06 20:28:54,933 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:28:54,933 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-06 20:28:54,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/880808599/8c80305fedf24c8d87132f59df65b609/FLAGad051bfb2 [2021-12-06 20:28:55,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/data/880808599/8c80305fedf24c8d87132f59df65b609 [2021-12-06 20:28:55,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:28:55,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:28:55,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:28:55,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:28:55,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:28:55,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:28:55" (1/1) ... [2021-12-06 20:28:55,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102e81fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:55, skipping insertion in model container [2021-12-06 20:28:55,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:28:55" (1/1) ... [2021-12-06 20:28:55,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:28:55,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:28:55,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-06 20:28:56,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:28:56,085 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 20:28:56,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:28:56,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-06 20:28:56,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:28:56,255 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:28:56,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i[153414,153427] [2021-12-06 20:28:56,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:28:56,440 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:28:56,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56 WrapperNode [2021-12-06 20:28:56,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:28:56,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:28:56,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:28:56,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:28:56,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,493 INFO L137 Inliner]: procedures = 97, calls = 171, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 509 [2021-12-06 20:28:56,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:28:56,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:28:56,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:28:56,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:28:56,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:28:56,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:28:56,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:28:56,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:28:56,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (1/1) ... [2021-12-06 20:28:56,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:28:56,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:28:56,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:28:56,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:28:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 20:28:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-06 20:28:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 20:28:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 20:28:56,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 20:28:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 20:28:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 20:28:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 20:28:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 20:28:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 20:28:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 20:28:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 20:28:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 20:28:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-12-06 20:28:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2021-12-06 20:28:56,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-06 20:28:56,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 20:28:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:28:56,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:28:56,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-06 20:28:56,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:28:56,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2021-12-06 20:28:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 20:28:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-06 20:28:56,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:28:56,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:28:56,788 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:28:56,789 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:28:56,888 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 20:29:00,162 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:29:00,168 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:29:00,168 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 20:29:00,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:29:00 BoogieIcfgContainer [2021-12-06 20:29:00,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:29:00,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:29:00,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:29:00,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:29:00,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:28:55" (1/3) ... [2021-12-06 20:29:00,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152e3fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:29:00, skipping insertion in model container [2021-12-06 20:29:00,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:28:56" (2/3) ... [2021-12-06 20:29:00,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152e3fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:29:00, skipping insertion in model container [2021-12-06 20:29:00,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:29:00" (3/3) ... [2021-12-06 20:29:00,178 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2021-12-06 20:29:00,182 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:29:00,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:29:00,222 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:29:00,227 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:29:00,227 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:29:00,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 151 states have internal predecessors, (208), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-06 20:29:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-06 20:29:00,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:00,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:29:00,249 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2020398219, now seen corresponding path program 1 times [2021-12-06 20:29:00,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:00,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425603077] [2021-12-06 20:29:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:00,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:00,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:00,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:00,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:29:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:00,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:29:00,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:29:00,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:00,537 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:00,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425603077] [2021-12-06 20:29:00,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425603077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:00,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:00,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:29:00,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346236810] [2021-12-06 20:29:00,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:00,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:29:00,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:00,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:29:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:29:00,565 INFO L87 Difference]: Start difference. First operand has 183 states, 146 states have (on average 1.4246575342465753) internal successors, (208), 151 states have internal predecessors, (208), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:29:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:00,618 INFO L93 Difference]: Finished difference Result 362 states and 520 transitions. [2021-12-06 20:29:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:29:00,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2021-12-06 20:29:00,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:00,628 INFO L225 Difference]: With dead ends: 362 [2021-12-06 20:29:00,628 INFO L226 Difference]: Without dead ends: 174 [2021-12-06 20:29:00,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:29:00,635 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:00,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 486 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:29:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-12-06 20:29:00,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-12-06 20:29:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 142 states have (on average 1.352112676056338) internal successors, (192), 142 states have internal predecessors, (192), 22 states have call successors, (22), 10 states have call predecessors, (22), 9 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-12-06 20:29:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 235 transitions. [2021-12-06 20:29:00,677 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 235 transitions. Word has length 35 [2021-12-06 20:29:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:00,678 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 235 transitions. [2021-12-06 20:29:00,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:29:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 235 transitions. [2021-12-06 20:29:00,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 20:29:00,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:00,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:29:00,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:29:00,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:00,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 21026425, now seen corresponding path program 1 times [2021-12-06 20:29:00,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:00,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355510366] [2021-12-06 20:29:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:00,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:00,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:00,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:00,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:29:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:01,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:29:01,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 20:29:01,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:01,127 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:01,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355510366] [2021-12-06 20:29:01,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355510366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:01,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:01,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:29:01,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720717860] [2021-12-06 20:29:01,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:01,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:29:01,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:01,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:29:01,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:29:01,130 INFO L87 Difference]: Start difference. First operand 174 states and 235 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:29:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:01,209 INFO L93 Difference]: Finished difference Result 487 states and 663 transitions. [2021-12-06 20:29:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:29:01,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-12-06 20:29:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:01,214 INFO L225 Difference]: With dead ends: 487 [2021-12-06 20:29:01,214 INFO L226 Difference]: Without dead ends: 322 [2021-12-06 20:29:01,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:29:01,217 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 200 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:01,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 478 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:29:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-12-06 20:29:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2021-12-06 20:29:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 263 states have (on average 1.3574144486692015) internal successors, (357), 263 states have internal predecessors, (357), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-12-06 20:29:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 436 transitions. [2021-12-06 20:29:01,257 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 436 transitions. Word has length 36 [2021-12-06 20:29:01,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:01,257 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 436 transitions. [2021-12-06 20:29:01,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:29:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 436 transitions. [2021-12-06 20:29:01,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 20:29:01,259 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:01,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:29:01,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:29:01,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:01,461 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1989051346, now seen corresponding path program 1 times [2021-12-06 20:29:01,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:01,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503451201] [2021-12-06 20:29:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:01,462 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:01,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:01,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:01,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:29:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:01,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:29:01,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 20:29:01,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:01,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:01,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503451201] [2021-12-06 20:29:01,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503451201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:01,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:01,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:29:01,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346884320] [2021-12-06 20:29:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:01,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:29:01,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:01,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:29:01,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:29:01,667 INFO L87 Difference]: Start difference. First operand 322 states and 436 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:29:01,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:01,818 INFO L93 Difference]: Finished difference Result 634 states and 859 transitions. [2021-12-06 20:29:01,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:29:01,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-12-06 20:29:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:01,823 INFO L225 Difference]: With dead ends: 634 [2021-12-06 20:29:01,823 INFO L226 Difference]: Without dead ends: 321 [2021-12-06 20:29:01,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:29:01,826 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 363 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:01,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 579 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:29:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-12-06 20:29:01,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2021-12-06 20:29:01,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 262 states have (on average 1.3473282442748091) internal successors, (353), 262 states have internal predecessors, (353), 40 states have call successors, (40), 19 states have call predecessors, (40), 18 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-12-06 20:29:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 432 transitions. [2021-12-06 20:29:01,862 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 432 transitions. Word has length 40 [2021-12-06 20:29:01,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:01,863 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 432 transitions. [2021-12-06 20:29:01,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 20:29:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 432 transitions. [2021-12-06 20:29:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-06 20:29:01,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:01,867 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:29:01,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 20:29:02,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:02,068 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:02,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:02,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1384341438, now seen corresponding path program 1 times [2021-12-06 20:29:02,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:02,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604450911] [2021-12-06 20:29:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:02,070 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:02,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:02,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:02,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 20:29:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:02,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:29:02,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 20:29:02,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:02,473 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:02,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604450911] [2021-12-06 20:29:02,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604450911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:02,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:02,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:29:02,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776467376] [2021-12-06 20:29:02,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:02,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:29:02,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:02,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:29:02,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:29:02,475 INFO L87 Difference]: Start difference. First operand 321 states and 432 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 20:29:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:02,652 INFO L93 Difference]: Finished difference Result 942 states and 1278 transitions. [2021-12-06 20:29:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:29:02,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 81 [2021-12-06 20:29:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:02,659 INFO L225 Difference]: With dead ends: 942 [2021-12-06 20:29:02,659 INFO L226 Difference]: Without dead ends: 625 [2021-12-06 20:29:02,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:29:02,661 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 184 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:02,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 980 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:29:02,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-06 20:29:02,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 617. [2021-12-06 20:29:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 502 states have (on average 1.350597609561753) internal successors, (678), 502 states have internal predecessors, (678), 78 states have call successors, (78), 37 states have call predecessors, (78), 36 states have return successors, (81), 77 states have call predecessors, (81), 77 states have call successors, (81) [2021-12-06 20:29:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 837 transitions. [2021-12-06 20:29:02,708 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 837 transitions. Word has length 81 [2021-12-06 20:29:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:02,709 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 837 transitions. [2021-12-06 20:29:02,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 20:29:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 837 transitions. [2021-12-06 20:29:02,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-06 20:29:02,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:02,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:29:02,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 20:29:02,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:02,917 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:02,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:02,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1203544401, now seen corresponding path program 1 times [2021-12-06 20:29:02,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:02,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430438744] [2021-12-06 20:29:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:02,923 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:02,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:02,925 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:02,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 20:29:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:03,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:29:03,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:03,458 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:29:03,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:03,458 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:03,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430438744] [2021-12-06 20:29:03,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430438744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:03,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:03,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:29:03,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606915738] [2021-12-06 20:29:03,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:03,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:29:03,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:03,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:29:03,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:29:03,460 INFO L87 Difference]: Start difference. First operand 617 states and 837 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 20:29:03,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:03,729 INFO L93 Difference]: Finished difference Result 1343 states and 1846 transitions. [2021-12-06 20:29:03,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:29:03,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 128 [2021-12-06 20:29:03,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:03,734 INFO L225 Difference]: With dead ends: 1343 [2021-12-06 20:29:03,734 INFO L226 Difference]: Without dead ends: 735 [2021-12-06 20:29:03,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:29:03,736 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 136 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:03,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 2645 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:29:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-12-06 20:29:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 617. [2021-12-06 20:29:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 502 states have (on average 1.3346613545816732) internal successors, (670), 502 states have internal predecessors, (670), 78 states have call successors, (78), 37 states have call predecessors, (78), 36 states have return successors, (81), 77 states have call predecessors, (81), 77 states have call successors, (81) [2021-12-06 20:29:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 829 transitions. [2021-12-06 20:29:03,766 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 829 transitions. Word has length 128 [2021-12-06 20:29:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:03,767 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 829 transitions. [2021-12-06 20:29:03,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-06 20:29:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 829 transitions. [2021-12-06 20:29:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-06 20:29:03,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:03,770 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:29:03,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 20:29:03,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:03,971 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:03,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1396240182, now seen corresponding path program 1 times [2021-12-06 20:29:03,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:03,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980829965] [2021-12-06 20:29:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:03,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:03,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:03,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 20:29:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:04,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 20:29:04,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:29:04,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:04,824 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:04,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980829965] [2021-12-06 20:29:04,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980829965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:04,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:04,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 20:29:04,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958533332] [2021-12-06 20:29:04,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:04,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 20:29:04,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 20:29:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:29:04,826 INFO L87 Difference]: Start difference. First operand 617 states and 829 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-06 20:29:05,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:05,792 INFO L93 Difference]: Finished difference Result 1335 states and 1814 transitions. [2021-12-06 20:29:05,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:29:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 134 [2021-12-06 20:29:05,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:05,797 INFO L225 Difference]: With dead ends: 1335 [2021-12-06 20:29:05,797 INFO L226 Difference]: Without dead ends: 727 [2021-12-06 20:29:05,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:29:05,799 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 359 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:05,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2997 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 20:29:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-12-06 20:29:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 609. [2021-12-06 20:29:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 494 states have (on average 1.3238866396761133) internal successors, (654), 494 states have internal predecessors, (654), 78 states have call successors, (78), 37 states have call predecessors, (78), 36 states have return successors, (81), 77 states have call predecessors, (81), 77 states have call successors, (81) [2021-12-06 20:29:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 813 transitions. [2021-12-06 20:29:05,835 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 813 transitions. Word has length 134 [2021-12-06 20:29:05,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:05,836 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 813 transitions. [2021-12-06 20:29:05,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-06 20:29:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 813 transitions. [2021-12-06 20:29:05,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-06 20:29:05,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:05,840 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:29:05,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 20:29:06,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:06,041 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:06,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:06,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1747283074, now seen corresponding path program 1 times [2021-12-06 20:29:06,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:06,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026641538] [2021-12-06 20:29:06,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:06,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:06,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:06,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:06,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 20:29:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:06,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:29:06,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:06,498 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 20:29:06,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:06,498 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:06,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026641538] [2021-12-06 20:29:06,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026641538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:06,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:06,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 20:29:06,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098479104] [2021-12-06 20:29:06,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:06,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 20:29:06,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:06,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 20:29:06,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:29:06,499 INFO L87 Difference]: Start difference. First operand 609 states and 813 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 20:29:06,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:06,550 INFO L93 Difference]: Finished difference Result 1311 states and 1770 transitions. [2021-12-06 20:29:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 20:29:06,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 165 [2021-12-06 20:29:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:06,556 INFO L225 Difference]: With dead ends: 1311 [2021-12-06 20:29:06,556 INFO L226 Difference]: Without dead ends: 711 [2021-12-06 20:29:06,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 20:29:06,559 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 108 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:06,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 502 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:29:06,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2021-12-06 20:29:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 601. [2021-12-06 20:29:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 490 states have (on average 1.3183673469387756) internal successors, (646), 490 states have internal predecessors, (646), 74 states have call successors, (74), 37 states have call predecessors, (74), 36 states have return successors, (77), 73 states have call predecessors, (77), 73 states have call successors, (77) [2021-12-06 20:29:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 797 transitions. [2021-12-06 20:29:06,604 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 797 transitions. Word has length 165 [2021-12-06 20:29:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:06,605 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 797 transitions. [2021-12-06 20:29:06,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-06 20:29:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 797 transitions. [2021-12-06 20:29:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-06 20:29:06,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:06,609 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:29:06,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 20:29:06,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:06,809 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:06,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:06,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1434773186, now seen corresponding path program 1 times [2021-12-06 20:29:06,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:06,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373045962] [2021-12-06 20:29:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:06,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:06,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:06,811 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:06,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 20:29:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:07,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:29:07,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 20:29:07,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:07,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:07,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373045962] [2021-12-06 20:29:07,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373045962] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:07,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:07,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:29:07,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277820891] [2021-12-06 20:29:07,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:07,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:29:07,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:29:07,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:29:07,271 INFO L87 Difference]: Start difference. First operand 601 states and 797 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:29:09,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:09,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:09,388 INFO L93 Difference]: Finished difference Result 1319 states and 1778 transitions. [2021-12-06 20:29:09,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:29:09,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 165 [2021-12-06 20:29:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:09,392 INFO L225 Difference]: With dead ends: 1319 [2021-12-06 20:29:09,392 INFO L226 Difference]: Without dead ends: 715 [2021-12-06 20:29:09,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:29:09,394 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 110 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:09,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 1112 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 20:29:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2021-12-06 20:29:09,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 605. [2021-12-06 20:29:09,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 494 states have (on average 1.3157894736842106) internal successors, (650), 494 states have internal predecessors, (650), 74 states have call successors, (74), 37 states have call predecessors, (74), 36 states have return successors, (77), 73 states have call predecessors, (77), 73 states have call successors, (77) [2021-12-06 20:29:09,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 801 transitions. [2021-12-06 20:29:09,420 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 801 transitions. Word has length 165 [2021-12-06 20:29:09,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:09,420 INFO L470 AbstractCegarLoop]: Abstraction has 605 states and 801 transitions. [2021-12-06 20:29:09,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:29:09,421 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 801 transitions. [2021-12-06 20:29:09,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-06 20:29:09,426 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:09,426 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:29:09,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-06 20:29:09,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:09,628 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:09,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1642622242, now seen corresponding path program 1 times [2021-12-06 20:29:09,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:09,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471222547] [2021-12-06 20:29:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:09,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:09,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:09,635 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:09,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 20:29:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:10,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:29:10,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 20:29:10,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:29:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-06 20:29:10,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:10,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471222547] [2021-12-06 20:29:10,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471222547] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:29:10,576 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:29:10,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-12-06 20:29:10,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203068146] [2021-12-06 20:29:10,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:29:10,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:29:10,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:10,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:29:10,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:29:10,577 INFO L87 Difference]: Start difference. First operand 605 states and 801 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:29:12,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:14,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:14,769 INFO L93 Difference]: Finished difference Result 1327 states and 1782 transitions. [2021-12-06 20:29:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:29:14,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 166 [2021-12-06 20:29:14,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:14,774 INFO L225 Difference]: With dead ends: 1327 [2021-12-06 20:29:14,774 INFO L226 Difference]: Without dead ends: 719 [2021-12-06 20:29:14,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:29:14,775 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 117 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:14,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 1906 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2021-12-06 20:29:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2021-12-06 20:29:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 609. [2021-12-06 20:29:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 498 states have (on average 1.3132530120481927) internal successors, (654), 498 states have internal predecessors, (654), 74 states have call successors, (74), 37 states have call predecessors, (74), 36 states have return successors, (77), 73 states have call predecessors, (77), 73 states have call successors, (77) [2021-12-06 20:29:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 805 transitions. [2021-12-06 20:29:14,801 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 805 transitions. Word has length 166 [2021-12-06 20:29:14,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:14,801 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 805 transitions. [2021-12-06 20:29:14,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:29:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 805 transitions. [2021-12-06 20:29:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-06 20:29:14,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:14,804 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:29:14,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 20:29:15,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:15,005 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:15,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash -503991614, now seen corresponding path program 2 times [2021-12-06 20:29:15,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:15,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349513412] [2021-12-06 20:29:15,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:29:15,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:15,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:15,007 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:15,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 20:29:15,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:29:15,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:29:15,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:29:15,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-06 20:29:16,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:29:16,775 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-06 20:29:16,775 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:16,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349513412] [2021-12-06 20:29:16,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349513412] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 20:29:16,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:29:16,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2021-12-06 20:29:16,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197845830] [2021-12-06 20:29:16,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:16,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:29:16,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:29:16,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-12-06 20:29:16,777 INFO L87 Difference]: Start difference. First operand 609 states and 805 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 20:29:19,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:21,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:23,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:25,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:27,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:30,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:32,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:34,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:36,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:38,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:40,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:41,621 INFO L93 Difference]: Finished difference Result 1971 states and 2611 transitions. [2021-12-06 20:29:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 20:29:41,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 167 [2021-12-06 20:29:41,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:41,630 INFO L225 Difference]: With dead ends: 1971 [2021-12-06 20:29:41,630 INFO L226 Difference]: Without dead ends: 1635 [2021-12-06 20:29:41,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2021-12-06 20:29:41,632 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 1504 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 384 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:41,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 1349 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 627 Invalid, 11 Unknown, 0 Unchecked, 24.2s Time] [2021-12-06 20:29:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2021-12-06 20:29:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1507. [2021-12-06 20:29:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1230 states have (on average 1.3170731707317074) internal successors, (1620), 1234 states have internal predecessors, (1620), 182 states have call successors, (182), 91 states have call predecessors, (182), 94 states have return successors, (199), 181 states have call predecessors, (199), 181 states have call successors, (199) [2021-12-06 20:29:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2001 transitions. [2021-12-06 20:29:41,707 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2001 transitions. Word has length 167 [2021-12-06 20:29:41,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:41,707 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2001 transitions. [2021-12-06 20:29:41,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 20:29:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2001 transitions. [2021-12-06 20:29:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-06 20:29:41,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:41,711 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:29:41,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 20:29:41,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:41,911 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash 746786563, now seen corresponding path program 1 times [2021-12-06 20:29:41,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:41,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129656779] [2021-12-06 20:29:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:41,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:41,913 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:41,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 20:29:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:42,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:29:42,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-06 20:29:42,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:29:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-12-06 20:29:43,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:43,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129656779] [2021-12-06 20:29:43,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129656779] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:29:43,211 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:29:43,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-06 20:29:43,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898333773] [2021-12-06 20:29:43,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:29:43,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:29:43,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:43,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:29:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:29:43,213 INFO L87 Difference]: Start difference. First operand 1507 states and 2001 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:29:45,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:47,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:49,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:49,496 INFO L93 Difference]: Finished difference Result 3155 states and 4218 transitions. [2021-12-06 20:29:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:29:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 169 [2021-12-06 20:29:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:49,504 INFO L225 Difference]: With dead ends: 3155 [2021-12-06 20:29:49,504 INFO L226 Difference]: Without dead ends: 1627 [2021-12-06 20:29:49,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:29:49,507 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 116 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:49,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 2216 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 6.2s Time] [2021-12-06 20:29:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2021-12-06 20:29:49,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1517. [2021-12-06 20:29:49,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1240 states have (on average 1.314516129032258) internal successors, (1630), 1244 states have internal predecessors, (1630), 182 states have call successors, (182), 91 states have call predecessors, (182), 94 states have return successors, (199), 181 states have call predecessors, (199), 181 states have call successors, (199) [2021-12-06 20:29:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2011 transitions. [2021-12-06 20:29:49,571 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2011 transitions. Word has length 169 [2021-12-06 20:29:49,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:49,571 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 2011 transitions. [2021-12-06 20:29:49,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:29:49,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2011 transitions. [2021-12-06 20:29:49,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-06 20:29:49,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:49,574 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:29:49,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 20:29:49,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:49,776 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:49,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:49,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1258527389, now seen corresponding path program 2 times [2021-12-06 20:29:49,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:49,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508317602] [2021-12-06 20:29:49,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:29:49,781 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:49,783 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:49,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 20:29:50,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 20:29:50,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:29:50,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 20:29:50,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-06 20:29:50,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:29:50,301 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:50,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508317602] [2021-12-06 20:29:50,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508317602] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:29:50,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:29:50,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:29:50,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466687975] [2021-12-06 20:29:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:50,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:29:50,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:29:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:29:50,303 INFO L87 Difference]: Start difference. First operand 1517 states and 2011 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-06 20:29:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:50,439 INFO L93 Difference]: Finished difference Result 3109 states and 4147 transitions. [2021-12-06 20:29:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:29:50,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 170 [2021-12-06 20:29:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:50,447 INFO L225 Difference]: With dead ends: 3109 [2021-12-06 20:29:50,447 INFO L226 Difference]: Without dead ends: 1601 [2021-12-06 20:29:50,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:29:50,449 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 10 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:50,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 655 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 20:29:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2021-12-06 20:29:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1553. [2021-12-06 20:29:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1276 states have (on average 1.3181818181818181) internal successors, (1682), 1280 states have internal predecessors, (1682), 182 states have call successors, (182), 91 states have call predecessors, (182), 94 states have return successors, (199), 181 states have call predecessors, (199), 181 states have call successors, (199) [2021-12-06 20:29:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2063 transitions. [2021-12-06 20:29:50,526 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2063 transitions. Word has length 170 [2021-12-06 20:29:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:50,526 INFO L470 AbstractCegarLoop]: Abstraction has 1553 states and 2063 transitions. [2021-12-06 20:29:50,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-06 20:29:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2063 transitions. [2021-12-06 20:29:50,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 20:29:50,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:50,529 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:29:50,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 20:29:50,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:50,730 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1625989218, now seen corresponding path program 1 times [2021-12-06 20:29:50,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:50,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318556782] [2021-12-06 20:29:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:50,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:50,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:50,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:50,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 20:29:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:51,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:29:51,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:29:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 20:29:51,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:29:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-06 20:29:52,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:29:52,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318556782] [2021-12-06 20:29:52,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318556782] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 20:29:52,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 20:29:52,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-12-06 20:29:52,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623270714] [2021-12-06 20:29:52,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:29:52,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:29:52,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:29:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:29:52,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:29:52,137 INFO L87 Difference]: Start difference. First operand 1553 states and 2063 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 20:29:54,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:56,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:58,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:29:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:29:58,999 INFO L93 Difference]: Finished difference Result 3031 states and 4035 transitions. [2021-12-06 20:29:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:29:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 172 [2021-12-06 20:29:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:29:59,006 INFO L225 Difference]: With dead ends: 3031 [2021-12-06 20:29:59,006 INFO L226 Difference]: Without dead ends: 1471 [2021-12-06 20:29:59,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:29:59,008 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 206 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:29:59,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 825 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 235 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2021-12-06 20:29:59,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-12-06 20:29:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1459. [2021-12-06 20:29:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1196 states have (on average 1.3210702341137124) internal successors, (1580), 1202 states have internal predecessors, (1580), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:29:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1943 transitions. [2021-12-06 20:29:59,074 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1943 transitions. Word has length 172 [2021-12-06 20:29:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:29:59,074 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 1943 transitions. [2021-12-06 20:29:59,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-12-06 20:29:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1943 transitions. [2021-12-06 20:29:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-06 20:29:59,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:29:59,076 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:29:59,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 20:29:59,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:29:59,277 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:29:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:29:59,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1798759286, now seen corresponding path program 1 times [2021-12-06 20:29:59,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:29:59,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125788152] [2021-12-06 20:29:59,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:29:59,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:29:59,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:29:59,279 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:29:59,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 20:29:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:29:59,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 20:29:59,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:30:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-06 20:30:00,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:30:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 20:30:00,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:30:00,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125788152] [2021-12-06 20:30:00,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125788152] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:30:00,838 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:30:00,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-12-06 20:30:00,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081406431] [2021-12-06 20:30:00,838 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:30:00,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 20:30:00,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:30:00,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 20:30:00,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-06 20:30:00,839 INFO L87 Difference]: Start difference. First operand 1459 states and 1943 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:02,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:04,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:06,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:08,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:09,138 INFO L93 Difference]: Finished difference Result 2755 states and 3676 transitions. [2021-12-06 20:30:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:30:09,138 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 172 [2021-12-06 20:30:09,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:09,144 INFO L225 Difference]: With dead ends: 2755 [2021-12-06 20:30:09,144 INFO L226 Difference]: Without dead ends: 1467 [2021-12-06 20:30:09,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-12-06 20:30:09,147 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 231 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 18 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:09,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1722 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 41 Invalid, 4 Unknown, 0 Unchecked, 8.2s Time] [2021-12-06 20:30:09,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2021-12-06 20:30:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1467. [2021-12-06 20:30:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1204 states have (on average 1.318936877076412) internal successors, (1588), 1210 states have internal predecessors, (1588), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:30:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1951 transitions. [2021-12-06 20:30:09,203 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1951 transitions. Word has length 172 [2021-12-06 20:30:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:09,203 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 1951 transitions. [2021-12-06 20:30:09,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:09,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1951 transitions. [2021-12-06 20:30:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-06 20:30:09,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:09,208 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:30:09,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 20:30:09,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:30:09,409 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:09,410 INFO L85 PathProgramCache]: Analyzing trace with hash 888384042, now seen corresponding path program 2 times [2021-12-06 20:30:09,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:30:09,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665156840] [2021-12-06 20:30:09,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:30:09,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:30:09,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:30:09,411 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:30:09,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 20:30:10,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:30:10,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:30:10,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:30:10,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:30:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-06 20:30:10,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:30:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 20:30:11,454 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:30:11,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665156840] [2021-12-06 20:30:11,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665156840] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:30:11,454 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:30:11,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-12-06 20:30:11,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604632643] [2021-12-06 20:30:11,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:30:11,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 20:30:11,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:30:11,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 20:30:11,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-12-06 20:30:11,456 INFO L87 Difference]: Start difference. First operand 1467 states and 1951 transitions. Second operand has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:13,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:15,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:17,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:19,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:21,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:21,810 INFO L93 Difference]: Finished difference Result 2771 states and 3692 transitions. [2021-12-06 20:30:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:30:21,811 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 173 [2021-12-06 20:30:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:21,817 INFO L225 Difference]: With dead ends: 2771 [2021-12-06 20:30:21,817 INFO L226 Difference]: Without dead ends: 1475 [2021-12-06 20:30:21,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-12-06 20:30:21,819 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 228 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:21,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2644 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 5 Unknown, 0 Unchecked, 10.3s Time] [2021-12-06 20:30:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2021-12-06 20:30:21,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2021-12-06 20:30:21,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1212 states have (on average 1.316831683168317) internal successors, (1596), 1218 states have internal predecessors, (1596), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:30:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1959 transitions. [2021-12-06 20:30:21,879 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1959 transitions. Word has length 173 [2021-12-06 20:30:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:21,879 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 1959 transitions. [2021-12-06 20:30:21,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.2) internal successors, (123), 15 states have internal predecessors, (123), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1959 transitions. [2021-12-06 20:30:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 20:30:21,881 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:21,881 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:30:21,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 20:30:22,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:30:22,082 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:22,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1709518710, now seen corresponding path program 3 times [2021-12-06 20:30:22,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:30:22,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689350549] [2021-12-06 20:30:22,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 20:30:22,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:30:22,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:30:22,090 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:30:22,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 20:30:22,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-06 20:30:22,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:30:22,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:30:22,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:30:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-06 20:30:22,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:30:22,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:30:22,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689350549] [2021-12-06 20:30:22,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689350549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:30:22,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:30:22,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:30:22,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995258191] [2021-12-06 20:30:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:30:22,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:30:22,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:30:22,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:30:22,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:30:22,960 INFO L87 Difference]: Start difference. First operand 1475 states and 1959 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:30:24,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:25,110 INFO L93 Difference]: Finished difference Result 2779 states and 3692 transitions. [2021-12-06 20:30:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:30:25,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 174 [2021-12-06 20:30:25,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:25,117 INFO L225 Difference]: With dead ends: 2779 [2021-12-06 20:30:25,117 INFO L226 Difference]: Without dead ends: 1483 [2021-12-06 20:30:25,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:30:25,119 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 109 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:25,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 1114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 20:30:25,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2021-12-06 20:30:25,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1483. [2021-12-06 20:30:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1220 states have (on average 1.3147540983606558) internal successors, (1604), 1226 states have internal predecessors, (1604), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:30:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1967 transitions. [2021-12-06 20:30:25,174 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1967 transitions. Word has length 174 [2021-12-06 20:30:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:25,174 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 1967 transitions. [2021-12-06 20:30:25,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 20:30:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1967 transitions. [2021-12-06 20:30:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-06 20:30:25,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:25,177 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:30:25,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-06 20:30:25,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:30:25,378 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:25,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:25,380 INFO L85 PathProgramCache]: Analyzing trace with hash 592859884, now seen corresponding path program 1 times [2021-12-06 20:30:25,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:30:25,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380665931] [2021-12-06 20:30:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:30:25,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:30:25,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:30:25,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:30:25,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 20:30:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:30:26,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 20:30:26,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:30:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-06 20:30:26,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:30:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-06 20:30:27,641 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:30:27,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380665931] [2021-12-06 20:30:27,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380665931] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:30:27,642 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:30:27,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-12-06 20:30:27,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752676283] [2021-12-06 20:30:27,642 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:30:27,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 20:30:27,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:30:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 20:30:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-12-06 20:30:27,643 INFO L87 Difference]: Start difference. First operand 1483 states and 1967 transitions. Second operand has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 17 states have internal predecessors, (126), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:29,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:31,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:33,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:35,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:37,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:39,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:40,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:40,013 INFO L93 Difference]: Finished difference Result 2811 states and 3732 transitions. [2021-12-06 20:30:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:30:40,014 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 17 states have internal predecessors, (126), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 175 [2021-12-06 20:30:40,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:40,020 INFO L225 Difference]: With dead ends: 2811 [2021-12-06 20:30:40,020 INFO L226 Difference]: Without dead ends: 1491 [2021-12-06 20:30:40,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-12-06 20:30:40,022 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 237 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 22 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2336 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:40,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2336 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 59 Invalid, 6 Unknown, 0 Unchecked, 12.3s Time] [2021-12-06 20:30:40,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2021-12-06 20:30:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1491. [2021-12-06 20:30:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1228 states have (on average 1.3127035830618892) internal successors, (1612), 1234 states have internal predecessors, (1612), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:30:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1975 transitions. [2021-12-06 20:30:40,079 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1975 transitions. Word has length 175 [2021-12-06 20:30:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:40,079 INFO L470 AbstractCegarLoop]: Abstraction has 1491 states and 1975 transitions. [2021-12-06 20:30:40,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 17 states have internal predecessors, (126), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1975 transitions. [2021-12-06 20:30:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 20:30:40,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:40,081 INFO L514 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:30:40,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 20:30:40,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:30:40,282 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:40,283 INFO L85 PathProgramCache]: Analyzing trace with hash -615685812, now seen corresponding path program 2 times [2021-12-06 20:30:40,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:30:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373139996] [2021-12-06 20:30:40,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:30:40,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:30:40,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:30:40,284 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:30:40,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 20:30:41,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:30:41,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:30:41,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:30:41,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:30:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-06 20:30:41,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:30:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-06 20:30:43,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:30:43,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373139996] [2021-12-06 20:30:43,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373139996] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:30:43,102 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:30:43,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-12-06 20:30:43,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795778428] [2021-12-06 20:30:43,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:30:43,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 20:30:43,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:30:43,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 20:30:43,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-12-06 20:30:43,104 INFO L87 Difference]: Start difference. First operand 1491 states and 1975 transitions. Second operand has 19 states, 19 states have (on average 6.7368421052631575) internal successors, (128), 19 states have internal predecessors, (128), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:45,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:47,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:49,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:51,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:53,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:55,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:57,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:30:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:30:57,545 INFO L93 Difference]: Finished difference Result 2827 states and 3748 transitions. [2021-12-06 20:30:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 20:30:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7368421052631575) internal successors, (128), 19 states have internal predecessors, (128), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 176 [2021-12-06 20:30:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:30:57,552 INFO L225 Difference]: With dead ends: 2827 [2021-12-06 20:30:57,552 INFO L226 Difference]: Without dead ends: 1499 [2021-12-06 20:30:57,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-12-06 20:30:57,554 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 133 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:30:57,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 3135 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 7 Unknown, 0 Unchecked, 14.4s Time] [2021-12-06 20:30:57,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2021-12-06 20:30:57,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2021-12-06 20:30:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1236 states have (on average 1.3106796116504855) internal successors, (1620), 1242 states have internal predecessors, (1620), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:30:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1983 transitions. [2021-12-06 20:30:57,613 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1983 transitions. Word has length 176 [2021-12-06 20:30:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:30:57,613 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 1983 transitions. [2021-12-06 20:30:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7368421052631575) internal successors, (128), 19 states have internal predecessors, (128), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:30:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1983 transitions. [2021-12-06 20:30:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-06 20:30:57,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:30:57,615 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-06 20:30:57,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-06 20:30:57,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:30:57,818 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:30:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:30:57,819 INFO L85 PathProgramCache]: Analyzing trace with hash 574103276, now seen corresponding path program 3 times [2021-12-06 20:30:57,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:30:57,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695071688] [2021-12-06 20:30:57,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 20:30:57,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:30:57,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:30:57,820 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:30:57,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 20:30:59,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-06 20:30:59,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:30:59,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:30:59,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:30:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-12-06 20:30:59,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:30:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-12-06 20:30:59,658 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:30:59,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695071688] [2021-12-06 20:30:59,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695071688] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:30:59,658 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:30:59,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-12-06 20:30:59,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557852992] [2021-12-06 20:30:59,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:30:59,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 20:30:59,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:30:59,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 20:30:59,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 20:30:59,659 INFO L87 Difference]: Start difference. First operand 1499 states and 1983 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:31:01,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:01,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:31:01,891 INFO L93 Difference]: Finished difference Result 2827 states and 3740 transitions. [2021-12-06 20:31:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 20:31:01,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 177 [2021-12-06 20:31:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:31:01,897 INFO L225 Difference]: With dead ends: 2827 [2021-12-06 20:31:01,898 INFO L226 Difference]: Without dead ends: 1507 [2021-12-06 20:31:01,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:31:01,899 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 110 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:31:01,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 1918 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:31:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-12-06 20:31:01,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1507. [2021-12-06 20:31:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1244 states have (on average 1.3086816720257235) internal successors, (1628), 1250 states have internal predecessors, (1628), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:31:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1991 transitions. [2021-12-06 20:31:01,955 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1991 transitions. Word has length 177 [2021-12-06 20:31:01,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:31:01,956 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 1991 transitions. [2021-12-06 20:31:01,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:31:01,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1991 transitions. [2021-12-06 20:31:01,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-06 20:31:01,958 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:31:01,958 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:31:01,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 20:31:02,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:31:02,160 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:31:02,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:31:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1629302582, now seen corresponding path program 4 times [2021-12-06 20:31:02,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:31:02,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560544216] [2021-12-06 20:31:02,165 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 20:31:02,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:31:02,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:31:02,168 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:31:02,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 20:31:03,397 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 20:31:03,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:31:03,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 20:31:03,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:31:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 11 proven. 28 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-12-06 20:31:03,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:31:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-06 20:31:05,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:31:05,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560544216] [2021-12-06 20:31:05,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560544216] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:31:05,500 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:31:05,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-12-06 20:31:05,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247111501] [2021-12-06 20:31:05,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:31:05,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 20:31:05,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:31:05,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 20:31:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-12-06 20:31:05,502 INFO L87 Difference]: Start difference. First operand 1507 states and 1991 transitions. Second operand has 21 states, 21 states have (on average 6.190476190476191) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:31:07,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:09,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:11,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:13,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:15,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:17,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:19,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:21,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:31:22,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:31:22,030 INFO L93 Difference]: Finished difference Result 2867 states and 3788 transitions. [2021-12-06 20:31:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 20:31:22,031 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.190476190476191) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 178 [2021-12-06 20:31:22,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:31:22,037 INFO L225 Difference]: With dead ends: 2867 [2021-12-06 20:31:22,037 INFO L226 Difference]: Without dead ends: 1515 [2021-12-06 20:31:22,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2021-12-06 20:31:22,039 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 243 mSDsluCounter, 3560 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 26 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:31:22,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 3868 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 80 Invalid, 8 Unknown, 0 Unchecked, 16.4s Time] [2021-12-06 20:31:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2021-12-06 20:31:22,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1515. [2021-12-06 20:31:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1252 states have (on average 1.3067092651757188) internal successors, (1636), 1258 states have internal predecessors, (1636), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:31:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1999 transitions. [2021-12-06 20:31:22,094 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1999 transitions. Word has length 178 [2021-12-06 20:31:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:31:22,094 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 1999 transitions. [2021-12-06 20:31:22,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.190476190476191) internal successors, (130), 21 states have internal predecessors, (130), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:31:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1999 transitions. [2021-12-06 20:31:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-06 20:31:22,096 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:31:22,096 INFO L514 BasicCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-06 20:31:22,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 20:31:22,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:31:22,297 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:31:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:31:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash -703289750, now seen corresponding path program 5 times [2021-12-06 20:31:22,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:31:22,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156108277] [2021-12-06 20:31:22,298 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 20:31:22,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:31:22,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:31:22,299 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:31:22,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 20:32:36,622 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-12-06 20:32:36,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:32:36,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:32:36,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:32:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-06 20:32:37,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:32:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-12-06 20:32:37,679 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:32:37,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156108277] [2021-12-06 20:32:37,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156108277] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:32:37,680 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:32:37,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-06 20:32:37,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874133555] [2021-12-06 20:32:37,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:32:37,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 20:32:37,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:32:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 20:32:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:32:37,681 INFO L87 Difference]: Start difference. First operand 1515 states and 1999 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:32:39,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:32:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:32:39,953 INFO L93 Difference]: Finished difference Result 2859 states and 3772 transitions. [2021-12-06 20:32:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:32:39,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 179 [2021-12-06 20:32:39,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:32:39,960 INFO L225 Difference]: With dead ends: 2859 [2021-12-06 20:32:39,960 INFO L226 Difference]: Without dead ends: 1523 [2021-12-06 20:32:39,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-12-06 20:32:39,962 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 111 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 20:32:39,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 2226 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 20:32:39,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2021-12-06 20:32:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1523. [2021-12-06 20:32:40,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1260 states have (on average 1.3047619047619048) internal successors, (1644), 1266 states have internal predecessors, (1644), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:32:40,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 2007 transitions. [2021-12-06 20:32:40,026 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 2007 transitions. Word has length 179 [2021-12-06 20:32:40,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:32:40,027 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 2007 transitions. [2021-12-06 20:32:40,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:32:40,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 2007 transitions. [2021-12-06 20:32:40,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-06 20:32:40,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:32:40,029 INFO L514 BasicCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:32:40,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-12-06 20:32:40,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:32:40,229 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:32:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:32:40,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1721186572, now seen corresponding path program 6 times [2021-12-06 20:32:40,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:32:40,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092859148] [2021-12-06 20:32:40,231 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 20:32:40,231 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:32:40,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:32:40,232 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:32:40,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 20:32:57,419 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-12-06 20:32:57,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:32:57,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 20:32:57,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:32:58,104 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 11 proven. 36 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-06 20:32:58,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:33:00,315 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 7 proven. 36 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:33:00,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:33:00,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092859148] [2021-12-06 20:33:00,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092859148] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:33:00,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:33:00,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-12-06 20:33:00,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633158485] [2021-12-06 20:33:00,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:33:00,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-06 20:33:00,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:33:00,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 20:33:00,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-12-06 20:33:00,317 INFO L87 Difference]: Start difference. First operand 1523 states and 2007 transitions. Second operand has 23 states, 23 states have (on average 5.739130434782608) internal successors, (132), 23 states have internal predecessors, (132), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:33:02,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:04,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:06,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:08,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:10,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:12,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:14,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:16,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:18,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:19,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:33:19,194 INFO L93 Difference]: Finished difference Result 2907 states and 3828 transitions. [2021-12-06 20:33:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 20:33:19,194 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.739130434782608) internal successors, (132), 23 states have internal predecessors, (132), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 180 [2021-12-06 20:33:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:33:19,200 INFO L225 Difference]: With dead ends: 2907 [2021-12-06 20:33:19,201 INFO L226 Difference]: Without dead ends: 1531 [2021-12-06 20:33:19,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2021-12-06 20:33:19,203 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 249 mSDsluCounter, 4158 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 21 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 4465 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:33:19,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 4465 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 104 Invalid, 9 Unknown, 0 Unchecked, 18.8s Time] [2021-12-06 20:33:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2021-12-06 20:33:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1531. [2021-12-06 20:33:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1268 states have (on average 1.3028391167192428) internal successors, (1652), 1274 states have internal predecessors, (1652), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:33:19,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2015 transitions. [2021-12-06 20:33:19,260 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2015 transitions. Word has length 180 [2021-12-06 20:33:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:33:19,260 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 2015 transitions. [2021-12-06 20:33:19,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.739130434782608) internal successors, (132), 23 states have internal predecessors, (132), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:33:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2015 transitions. [2021-12-06 20:33:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-06 20:33:19,262 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:33:19,262 INFO L514 BasicCegarLoop]: trace histogram [9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:33:19,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-12-06 20:33:19,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:33:19,463 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:33:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:33:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1733679444, now seen corresponding path program 7 times [2021-12-06 20:33:19,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:33:19,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224609996] [2021-12-06 20:33:19,466 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 20:33:19,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:33:19,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:33:19,468 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:33:19,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 20:33:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:33:20,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 20:33:20,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:33:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 11 proven. 45 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-06 20:33:21,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:33:23,736 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 7 proven. 45 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:33:23,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:33:23,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224609996] [2021-12-06 20:33:23,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224609996] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:33:23,737 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:33:23,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-12-06 20:33:23,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751354847] [2021-12-06 20:33:23,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:33:23,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-06 20:33:23,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:33:23,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-06 20:33:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2021-12-06 20:33:23,739 INFO L87 Difference]: Start difference. First operand 1531 states and 2015 transitions. Second operand has 25 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:33:25,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:27,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:29,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:31,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:33,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:35,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:37,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:39,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:41,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:43,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:44,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:33:44,325 INFO L93 Difference]: Finished difference Result 2923 states and 3844 transitions. [2021-12-06 20:33:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 20:33:44,326 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 181 [2021-12-06 20:33:44,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:33:44,331 INFO L225 Difference]: With dead ends: 2923 [2021-12-06 20:33:44,331 INFO L226 Difference]: Without dead ends: 1539 [2021-12-06 20:33:44,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2021-12-06 20:33:44,334 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 142 mSDsluCounter, 3442 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 18 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 3750 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:33:44,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 3750 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 100 Invalid, 10 Unknown, 0 Unchecked, 20.5s Time] [2021-12-06 20:33:44,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-12-06 20:33:44,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1539. [2021-12-06 20:33:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1276 states have (on average 1.3009404388714734) internal successors, (1660), 1282 states have internal predecessors, (1660), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:33:44,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2023 transitions. [2021-12-06 20:33:44,395 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2023 transitions. Word has length 181 [2021-12-06 20:33:44,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:33:44,395 INFO L470 AbstractCegarLoop]: Abstraction has 1539 states and 2023 transitions. [2021-12-06 20:33:44,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:33:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2023 transitions. [2021-12-06 20:33:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-06 20:33:44,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:33:44,397 INFO L514 BasicCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:33:44,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 20:33:44,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:33:44,599 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:33:44,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:33:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1460343540, now seen corresponding path program 8 times [2021-12-06 20:33:44,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:33:44,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563635606] [2021-12-06 20:33:44,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 20:33:44,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:33:44,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:33:44,608 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:33:44,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 20:33:46,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 20:33:46,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:33:46,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 20:33:46,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:33:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 11 proven. 55 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-06 20:33:46,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:33:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 7 proven. 55 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:33:49,656 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:33:49,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563635606] [2021-12-06 20:33:49,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563635606] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:33:49,657 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:33:49,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-12-06 20:33:49,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130658329] [2021-12-06 20:33:49,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:33:49,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-06 20:33:49,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:33:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-06 20:33:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2021-12-06 20:33:49,658 INFO L87 Difference]: Start difference. First operand 1539 states and 2023 transitions. Second operand has 27 states, 27 states have (on average 5.037037037037037) internal successors, (136), 27 states have internal predecessors, (136), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:33:51,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:53,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:55,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:57,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:33:59,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:01,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:03,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:05,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:07,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:09,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:11,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:34:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:34:12,310 INFO L93 Difference]: Finished difference Result 2939 states and 3860 transitions. [2021-12-06 20:34:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 20:34:12,311 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.037037037037037) internal successors, (136), 27 states have internal predecessors, (136), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 182 [2021-12-06 20:34:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:34:12,316 INFO L225 Difference]: With dead ends: 2939 [2021-12-06 20:34:12,316 INFO L226 Difference]: Without dead ends: 1547 [2021-12-06 20:34:12,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2021-12-06 20:34:12,319 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 141 mSDsluCounter, 4364 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 20 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 4672 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:34:12,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 4672 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 112 Invalid, 11 Unknown, 0 Unchecked, 22.5s Time] [2021-12-06 20:34:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2021-12-06 20:34:12,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2021-12-06 20:34:12,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1284 states have (on average 1.2990654205607477) internal successors, (1668), 1290 states have internal predecessors, (1668), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:34:12,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2031 transitions. [2021-12-06 20:34:12,378 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2031 transitions. Word has length 182 [2021-12-06 20:34:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:34:12,378 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2031 transitions. [2021-12-06 20:34:12,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.037037037037037) internal successors, (136), 27 states have internal predecessors, (136), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:34:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2031 transitions. [2021-12-06 20:34:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-06 20:34:12,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:34:12,380 INFO L514 BasicCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:34:12,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-12-06 20:34:12,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:34:12,582 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:34:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:34:12,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1576865108, now seen corresponding path program 9 times [2021-12-06 20:34:12,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:34:12,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363150573] [2021-12-06 20:34:12,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 20:34:12,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:34:12,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:34:12,591 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:34:12,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-06 20:37:09,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-12-06 20:37:09,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:37:09,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 20:37:09,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:37:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 11 proven. 66 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-06 20:37:10,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:37:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 7 proven. 66 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:37:13,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:37:13,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363150573] [2021-12-06 20:37:13,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363150573] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:37:13,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:37:13,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-12-06 20:37:13,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640182394] [2021-12-06 20:37:13,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:37:13,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-06 20:37:13,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:37:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-06 20:37:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2021-12-06 20:37:13,821 INFO L87 Difference]: Start difference. First operand 1547 states and 2031 transitions. Second operand has 29 states, 29 states have (on average 4.758620689655173) internal successors, (138), 29 states have internal predecessors, (138), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:37:15,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:17,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:20,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:22,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:24,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:26,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:28,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:30,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:32,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:34,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:36,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:38,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:38,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:37:38,797 INFO L93 Difference]: Finished difference Result 2955 states and 3876 transitions. [2021-12-06 20:37:38,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 20:37:38,798 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.758620689655173) internal successors, (138), 29 states have internal predecessors, (138), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 183 [2021-12-06 20:37:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:37:38,803 INFO L225 Difference]: With dead ends: 2955 [2021-12-06 20:37:38,804 INFO L226 Difference]: Without dead ends: 1555 [2021-12-06 20:37:38,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2021-12-06 20:37:38,806 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 151 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 12 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:37:38,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 5874 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 142 Invalid, 12 Unknown, 0 Unchecked, 24.9s Time] [2021-12-06 20:37:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2021-12-06 20:37:38,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2021-12-06 20:37:38,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1292 states have (on average 1.2972136222910218) internal successors, (1676), 1298 states have internal predecessors, (1676), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:37:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2039 transitions. [2021-12-06 20:37:38,863 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2039 transitions. Word has length 183 [2021-12-06 20:37:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:37:38,863 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2039 transitions. [2021-12-06 20:37:38,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.758620689655173) internal successors, (138), 29 states have internal predecessors, (138), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:37:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2039 transitions. [2021-12-06 20:37:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-06 20:37:38,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:37:38,868 INFO L514 BasicCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:37:38,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-12-06 20:37:39,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:37:39,070 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:37:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:37:39,071 INFO L85 PathProgramCache]: Analyzing trace with hash -894066420, now seen corresponding path program 10 times [2021-12-06 20:37:39,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:37:39,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172768382] [2021-12-06 20:37:39,075 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 20:37:39,076 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:37:39,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:37:39,078 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:37:39,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-06 20:37:40,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 20:37:40,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:37:40,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 20:37:40,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:37:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 11 proven. 78 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-06 20:37:41,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:37:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 7 proven. 78 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:37:44,863 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:37:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172768382] [2021-12-06 20:37:44,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172768382] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:37:44,863 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:37:44,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-12-06 20:37:44,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506070518] [2021-12-06 20:37:44,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:37:44,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-06 20:37:44,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:37:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-06 20:37:44,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2021-12-06 20:37:44,865 INFO L87 Difference]: Start difference. First operand 1555 states and 2039 transitions. Second operand has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 31 states have internal predecessors, (140), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:37:47,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:49,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:51,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:53,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:55,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:57,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:37:59,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:01,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:03,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:05,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:07,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:09,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:11,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:38:11,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:38:11,646 INFO L93 Difference]: Finished difference Result 2971 states and 3892 transitions. [2021-12-06 20:38:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 20:38:11,647 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 31 states have internal predecessors, (140), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) Word has length 184 [2021-12-06 20:38:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:38:11,654 INFO L225 Difference]: With dead ends: 2971 [2021-12-06 20:38:11,654 INFO L226 Difference]: Without dead ends: 1563 [2021-12-06 20:38:11,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-12-06 20:38:11,658 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 147 mSDsluCounter, 6202 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 24 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:38:11,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 6510 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 134 Invalid, 13 Unknown, 0 Unchecked, 26.7s Time] [2021-12-06 20:38:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2021-12-06 20:38:11,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2021-12-06 20:38:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1300 states have (on average 1.2953846153846154) internal successors, (1684), 1306 states have internal predecessors, (1684), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:38:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2047 transitions. [2021-12-06 20:38:11,717 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2047 transitions. Word has length 184 [2021-12-06 20:38:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:38:11,718 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2047 transitions. [2021-12-06 20:38:11,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 31 states have internal predecessors, (140), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 20:38:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2047 transitions. [2021-12-06 20:38:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-06 20:38:11,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:38:11,720 INFO L514 BasicCegarLoop]: trace histogram [13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:38:11,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-12-06 20:38:11,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:38:11,920 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:38:11,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:38:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1202143572, now seen corresponding path program 11 times [2021-12-06 20:38:11,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:38:11,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240106918] [2021-12-06 20:38:11,922 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 20:38:11,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:38:11,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:38:11,923 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:38:11,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-06 20:41:30,553 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-12-06 20:41:30,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 20:41:31,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 2042 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 20:41:31,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:41:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 41 proven. 117 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-06 20:41:32,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:41:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 7 proven. 91 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-06 20:41:37,581 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:41:37,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240106918] [2021-12-06 20:41:37,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240106918] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:41:37,582 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 20:41:37,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18] total 39 [2021-12-06 20:41:37,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796398208] [2021-12-06 20:41:37,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 20:41:37,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-06 20:41:37,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:41:37,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-06 20:41:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1377, Unknown=0, NotChecked=0, Total=1482 [2021-12-06 20:41:37,584 INFO L87 Difference]: Start difference. First operand 1563 states and 2047 transitions. Second operand has 39 states, 39 states have (on average 4.487179487179487) internal successors, (175), 38 states have internal predecessors, (175), 8 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2021-12-06 20:41:41,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:43,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:45,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:47,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:49,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:51,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:53,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:55,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:57,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:41:59,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:42:01,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:42:03,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:42:05,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:42:07,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:42:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:10,555 INFO L93 Difference]: Finished difference Result 2987 states and 3908 transitions. [2021-12-06 20:42:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 20:42:10,556 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.487179487179487) internal successors, (175), 38 states have internal predecessors, (175), 8 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) Word has length 185 [2021-12-06 20:42:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:10,559 INFO L225 Difference]: With dead ends: 2987 [2021-12-06 20:42:10,559 INFO L226 Difference]: Without dead ends: 1571 [2021-12-06 20:42:10,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=171, Invalid=2085, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 20:42:10,562 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 451 mSDsluCounter, 7637 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 52 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 7919 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:10,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 7919 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 881 Invalid, 14 Unknown, 0 Unchecked, 31.8s Time] [2021-12-06 20:42:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2021-12-06 20:42:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2021-12-06 20:42:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1308 states have (on average 1.2935779816513762) internal successors, (1692), 1314 states have internal predecessors, (1692), 172 states have call successors, (172), 87 states have call predecessors, (172), 90 states have return successors, (191), 169 states have call predecessors, (191), 171 states have call successors, (191) [2021-12-06 20:42:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2055 transitions. [2021-12-06 20:42:10,630 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2055 transitions. Word has length 185 [2021-12-06 20:42:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:10,631 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2055 transitions. [2021-12-06 20:42:10,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.487179487179487) internal successors, (175), 38 states have internal predecessors, (175), 8 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2021-12-06 20:42:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2055 transitions. [2021-12-06 20:42:10,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-06 20:42:10,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:10,633 INFO L514 BasicCegarLoop]: trace histogram [14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-12-06 20:42:10,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-12-06 20:42:10,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:42:10,834 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:42:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:10,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2132366604, now seen corresponding path program 12 times [2021-12-06 20:42:10,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:42:10,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707186785] [2021-12-06 20:42:10,837 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 20:42:10,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:42:10,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:42:10,838 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:42:10,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb0f0dc-62ab-48be-bd90-171358e456fa/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process