./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX --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 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:32:57,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:32:57,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:32:57,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:32:57,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:32:57,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:32:57,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:32:57,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:32:57,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:32:57,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:32:57,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:32:57,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:32:57,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:32:57,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:32:57,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:32:57,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:32:57,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:32:57,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:32:57,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:32:57,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:32:57,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:32:57,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:32:57,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:32:57,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:32:57,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:32:57,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:32:57,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:32:57,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:32:57,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:32:57,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:32:57,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:32:57,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:32:57,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:32:57,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:32:57,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:32:57,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:32:57,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:32:57,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:32:57,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:32:57,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:32:57,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:32:57,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 09:32:57,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:32:57,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:32:57,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:32:57,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:32:57,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:32:57,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:32:57,920 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:32:57,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:32:57,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:32:57,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:32:57,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:32:57,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:32:57,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:32:57,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:32:57,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:32:57,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:32:57,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:32:57,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:32:57,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:32:57,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:32:57,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:32:57,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:32:57,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:32:57,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:32:57,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:32:57,927 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:32:57,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:32:57,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:32:57,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:32:57,929 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_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be531e7af87cba73be4f8246e93f3d32963d00e421fc44d0f45559eac1d9e7a [2021-11-09 09:32:58,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:32:58,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:32:58,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:32:58,251 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:32:58,251 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:32:58,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-09 09:32:58,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/data/335160cc8/b9b28bf6d1ad4dd0bfea080554c4efee/FLAGd3e812d70 [2021-11-09 09:32:59,345 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:32:59,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-09 09:32:59,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/data/335160cc8/b9b28bf6d1ad4dd0bfea080554c4efee/FLAGd3e812d70 [2021-11-09 09:32:59,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/data/335160cc8/b9b28bf6d1ad4dd0bfea080554c4efee [2021-11-09 09:32:59,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:32:59,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:32:59,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:32:59,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:32:59,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:32:59,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:32:59" (1/1) ... [2021-11-09 09:32:59,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3b3b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:59, skipping insertion in model container [2021-11-09 09:32:59,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:32:59" (1/1) ... [2021-11-09 09:32:59,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:32:59,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:33:02,915 WARN L228 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_fe49ef44-dcf0-4145-afe7-fd3d2768590e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-09 09:33:02,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:03,125 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:33:03,787 WARN L228 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_fe49ef44-dcf0-4145-afe7-fd3d2768590e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i[354644,354657] [2021-11-09 09:33:03,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:03,996 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:33:03,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03 WrapperNode [2021-11-09 09:33:03,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:04,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:04,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:33:04,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:33:04,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:04,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:05,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:05,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:33:05,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:33:05,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:33:05,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:05,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:06,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:06,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:07,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:07,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:07,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:07,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:33:07,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:33:07,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:33:07,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:33:07,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (1/1) ... [2021-11-09 09:33:08,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:08,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:33:08,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:33:08,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe49ef44-dcf0-4145-afe7-fd3d2768590e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:33:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-09 09:33:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-09 09:33:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 09:33:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 09:33:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_release_file [2021-11-09 09:33:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_release_file [2021-11-09 09:33:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-09 09:33:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-09 09:33:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_srq [2021-11-09 09:33:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_srq [2021-11-09 09:33:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_ex_query_device [2021-11-09 09:33:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_ex_query_device [2021-11-09 09:33:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_mmap [2021-11-09 09:33:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_mmap [2021-11-09 09:33:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:33:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-09 09:33:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 09:33:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-09 09:33:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-09 09:33:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-09 09:33:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:33:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 09:33:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_write [2021-11-09 09:33:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_write [2021-11-09 09:33:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 09:33:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 09:33:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:33:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:33:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-09 09:33:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-09 09:33:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:33:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 09:33:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-09 09:33:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 09:33:08,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-09 09:33:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_remove_one [2021-11-09 09:33:08,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_remove_one [2021-11-09 09:33:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-09 09:33:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-11-09 09:33:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_add_one [2021-11-09 09:33:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_add_one [2021-11-09 09:33:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-09 09:33:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-09 09:33:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ib_uverbs_modify_qp [2021-11-09 09:33:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_uverbs_modify_qp [2021-11-09 09:33:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:33:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:33:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:34:06,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:34:06,188 INFO L299 CfgBuilder]: Removed 9079 assume(true) statements. [2021-11-09 09:34:06,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:06 BoogieIcfgContainer [2021-11-09 09:34:06,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:34:06,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:34:06,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:34:06,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:34:06,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:32:59" (1/3) ... [2021-11-09 09:34:06,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c6320d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:06, skipping insertion in model container [2021-11-09 09:34:06,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:03" (2/3) ... [2021-11-09 09:34:06,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c6320d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:06, skipping insertion in model container [2021-11-09 09:34:06,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:06" (3/3) ... [2021-11-09 09:34:06,208 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--infiniband--core--ib_uverbs.ko-entry_point.cil.out.i [2021-11-09 09:34:06,214 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:34:06,214 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-09 09:34:06,293 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:34:06,300 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 [2021-11-09 09:34:06,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-09 09:34:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 7835 states, 7646 states have (on average 1.3808527334554015) internal successors, (10558), 7654 states have internal predecessors, (10558), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-09 09:34:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-09 09:34:06,451 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:06,451 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:06,452 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:06,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:06,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1001547020, now seen corresponding path program 1 times [2021-11-09 09:34:06,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:06,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537571869] [2021-11-09 09:34:06,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:06,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:07,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:07,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537571869] [2021-11-09 09:34:07,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537571869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:07,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:07,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:34:07,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594590970] [2021-11-09 09:34:07,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:34:07,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:07,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:34:07,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:34:07,364 INFO L87 Difference]: Start difference. First operand has 7835 states, 7646 states have (on average 1.3808527334554015) internal successors, (10558), 7654 states have internal predecessors, (10558), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:07,859 INFO L93 Difference]: Finished difference Result 15666 states and 21951 transitions. [2021-11-09 09:34:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:34:07,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-09 09:34:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:07,941 INFO L225 Difference]: With dead ends: 15666 [2021-11-09 09:34:07,941 INFO L226 Difference]: Without dead ends: 7822 [2021-11-09 09:34:07,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:34:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2021-11-09 09:34:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7822. [2021-11-09 09:34:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7822 states, 7634 states have (on average 1.355645795127063) internal successors, (10349), 7641 states have internal predecessors, (10349), 168 states have call successors, (168), 15 states have call predecessors, (168), 15 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2021-11-09 09:34:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 10685 transitions. [2021-11-09 09:34:08,445 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 10685 transitions. Word has length 123 [2021-11-09 09:34:08,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:08,448 INFO L470 AbstractCegarLoop]: Abstraction has 7822 states and 10685 transitions. [2021-11-09 09:34:08,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 10685 transitions. [2021-11-09 09:34:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-09 09:34:08,456 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:08,457 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:34:08,457 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1568801746, now seen corresponding path program 1 times [2021-11-09 09:34:08,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:08,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249625892] [2021-11-09 09:34:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:08,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:09,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:09,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249625892] [2021-11-09 09:34:09,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249625892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:09,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:09,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:34:09,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999066226] [2021-11-09 09:34:09,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:34:09,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:34:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:09,501 INFO L87 Difference]: Start difference. First operand 7822 states and 10685 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:10,252 INFO L93 Difference]: Finished difference Result 23252 states and 31992 transitions. [2021-11-09 09:34:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:34:10,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-09 09:34:10,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:10,373 INFO L225 Difference]: With dead ends: 23252 [2021-11-09 09:34:10,374 INFO L226 Difference]: Without dead ends: 15520 [2021-11-09 09:34:10,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:10,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15520 states. [2021-11-09 09:34:11,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15520 to 15512. [2021-11-09 09:34:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15512 states, 15141 states have (on average 1.3574400634040025) internal successors, (20553), 15151 states have internal predecessors, (20553), 336 states have call successors, (336), 30 states have call predecessors, (336), 30 states have return successors, (340), 332 states have call predecessors, (340), 336 states have call successors, (340) [2021-11-09 09:34:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15512 states to 15512 states and 21229 transitions. [2021-11-09 09:34:11,333 INFO L78 Accepts]: Start accepts. Automaton has 15512 states and 21229 transitions. Word has length 123 [2021-11-09 09:34:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:11,337 INFO L470 AbstractCegarLoop]: Abstraction has 15512 states and 21229 transitions. [2021-11-09 09:34:11,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 15512 states and 21229 transitions. [2021-11-09 09:34:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-09 09:34:11,350 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:11,350 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:11,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:34:11,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1988831704, now seen corresponding path program 1 times [2021-11-09 09:34:11,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:11,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820764809] [2021-11-09 09:34:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:11,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:11,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:11,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820764809] [2021-11-09 09:34:11,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820764809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:11,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:11,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:34:11,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609730907] [2021-11-09 09:34:11,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:34:11,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:11,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:34:11,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:11,860 INFO L87 Difference]: Start difference. First operand 15512 states and 21229 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:13,184 INFO L93 Difference]: Finished difference Result 46025 states and 63734 transitions. [2021-11-09 09:34:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:34:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-09 09:34:13,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:13,380 INFO L225 Difference]: With dead ends: 46025 [2021-11-09 09:34:13,380 INFO L226 Difference]: Without dead ends: 30617 [2021-11-09 09:34:13,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-11-09 09:34:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 30570. [2021-11-09 09:34:15,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30570 states, 29841 states have (on average 1.3594048456821153) internal successors, (40566), 29855 states have internal predecessors, (40566), 664 states have call successors, (664), 60 states have call predecessors, (664), 60 states have return successors, (1344), 658 states have call predecessors, (1344), 664 states have call successors, (1344) [2021-11-09 09:34:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30570 states to 30570 states and 42574 transitions. [2021-11-09 09:34:15,268 INFO L78 Accepts]: Start accepts. Automaton has 30570 states and 42574 transitions. Word has length 134 [2021-11-09 09:34:15,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:15,269 INFO L470 AbstractCegarLoop]: Abstraction has 30570 states and 42574 transitions. [2021-11-09 09:34:15,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:15,270 INFO L276 IsEmpty]: Start isEmpty. Operand 30570 states and 42574 transitions. [2021-11-09 09:34:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-09 09:34:15,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:15,273 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:15,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:34:15,274 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:15,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2091362701, now seen corresponding path program 1 times [2021-11-09 09:34:15,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:15,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061448419] [2021-11-09 09:34:15,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:15,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:15,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:15,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061448419] [2021-11-09 09:34:15,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061448419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:15,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:15,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:34:15,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728669042] [2021-11-09 09:34:15,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:34:15,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:15,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:34:15,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:15,952 INFO L87 Difference]: Start difference. First operand 30570 states and 42574 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:17,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:17,415 INFO L93 Difference]: Finished difference Result 60672 states and 84509 transitions. [2021-11-09 09:34:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:34:17,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-09 09:34:17,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:17,672 INFO L225 Difference]: With dead ends: 60672 [2021-11-09 09:34:17,672 INFO L226 Difference]: Without dead ends: 30206 [2021-11-09 09:34:17,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30206 states. [2021-11-09 09:34:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30206 to 30206. [2021-11-09 09:34:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30206 states, 29485 states have (on average 1.3587247753094793) internal successors, (40062), 29499 states have internal predecessors, (40062), 656 states have call successors, (656), 60 states have call predecessors, (656), 60 states have return successors, (1328), 650 states have call predecessors, (1328), 656 states have call successors, (1328) [2021-11-09 09:34:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30206 states to 30206 states and 42046 transitions. [2021-11-09 09:34:19,179 INFO L78 Accepts]: Start accepts. Automaton has 30206 states and 42046 transitions. Word has length 136 [2021-11-09 09:34:19,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:19,181 INFO L470 AbstractCegarLoop]: Abstraction has 30206 states and 42046 transitions. [2021-11-09 09:34:19,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:19,182 INFO L276 IsEmpty]: Start isEmpty. Operand 30206 states and 42046 transitions. [2021-11-09 09:34:19,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-09 09:34:19,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:19,186 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:19,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:34:19,186 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:19,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:19,187 INFO L85 PathProgramCache]: Analyzing trace with hash -995424755, now seen corresponding path program 1 times [2021-11-09 09:34:19,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:19,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481584260] [2021-11-09 09:34:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:19,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:19,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:19,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481584260] [2021-11-09 09:34:19,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481584260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:19,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:19,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:34:19,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809158692] [2021-11-09 09:34:19,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:34:19,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:19,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:34:19,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:19,774 INFO L87 Difference]: Start difference. First operand 30206 states and 42046 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:21,199 INFO L93 Difference]: Finished difference Result 58646 states and 81753 transitions. [2021-11-09 09:34:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:34:21,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-09 09:34:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:21,324 INFO L225 Difference]: With dead ends: 58646 [2021-11-09 09:34:21,324 INFO L226 Difference]: Without dead ends: 28544 [2021-11-09 09:34:21,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:21,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28544 states. [2021-11-09 09:34:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28544 to 28544. [2021-11-09 09:34:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28544 states, 27897 states have (on average 1.3636591748216653) internal successors, (38042), 27909 states have internal predecessors, (38042), 592 states have call successors, (592), 52 states have call predecessors, (592), 52 states have return successors, (1184), 586 states have call predecessors, (1184), 592 states have call successors, (1184) [2021-11-09 09:34:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28544 states to 28544 states and 39818 transitions. [2021-11-09 09:34:22,916 INFO L78 Accepts]: Start accepts. Automaton has 28544 states and 39818 transitions. Word has length 142 [2021-11-09 09:34:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:22,916 INFO L470 AbstractCegarLoop]: Abstraction has 28544 states and 39818 transitions. [2021-11-09 09:34:22,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:22,917 INFO L276 IsEmpty]: Start isEmpty. Operand 28544 states and 39818 transitions. [2021-11-09 09:34:22,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-09 09:34:22,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:22,919 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:22,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:34:22,920 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:22,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1609332516, now seen corresponding path program 1 times [2021-11-09 09:34:22,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:22,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791843566] [2021-11-09 09:34:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:22,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:23,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:23,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791843566] [2021-11-09 09:34:23,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791843566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:23,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:23,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:34:23,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323379371] [2021-11-09 09:34:23,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:34:23,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:23,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:34:23,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:23,361 INFO L87 Difference]: Start difference. First operand 28544 states and 39818 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:25,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:25,695 INFO L93 Difference]: Finished difference Result 85368 states and 119136 transitions. [2021-11-09 09:34:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:34:25,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-09 09:34:25,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:25,971 INFO L225 Difference]: With dead ends: 85368 [2021-11-09 09:34:25,971 INFO L226 Difference]: Without dead ends: 56928 [2021-11-09 09:34:26,048 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:26,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56928 states. [2021-11-09 09:34:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56928 to 56906. [2021-11-09 09:34:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56906 states, 55623 states have (on average 1.364201858943243) internal successors, (75881), 55645 states have internal predecessors, (75881), 1176 states have call successors, (1176), 104 states have call predecessors, (1176), 104 states have return successors, (2352), 1164 states have call predecessors, (2352), 1176 states have call successors, (2352) [2021-11-09 09:34:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56906 states to 56906 states and 79409 transitions. [2021-11-09 09:34:29,299 INFO L78 Accepts]: Start accepts. Automaton has 56906 states and 79409 transitions. Word has length 148 [2021-11-09 09:34:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:29,300 INFO L470 AbstractCegarLoop]: Abstraction has 56906 states and 79409 transitions. [2021-11-09 09:34:29,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 56906 states and 79409 transitions. [2021-11-09 09:34:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-09 09:34:29,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:29,303 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:29,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:34:29,304 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:29,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:29,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1173068197, now seen corresponding path program 1 times [2021-11-09 09:34:29,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:29,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234274145] [2021-11-09 09:34:29,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:29,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:29,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:29,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234274145] [2021-11-09 09:34:29,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234274145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:29,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:29,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:34:29,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373771385] [2021-11-09 09:34:29,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:34:29,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:29,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:34:29,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:29,714 INFO L87 Difference]: Start difference. First operand 56906 states and 79409 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:34,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:34,762 INFO L93 Difference]: Finished difference Result 142116 states and 198358 transitions. [2021-11-09 09:34:34,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:34:34,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-11-09 09:34:34,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:35,339 INFO L225 Difference]: With dead ends: 142116 [2021-11-09 09:34:35,340 INFO L226 Difference]: Without dead ends: 85314 [2021-11-09 09:34:35,552 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:34:35,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85314 states. [2021-11-09 09:34:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85314 to 85292. [2021-11-09 09:34:38,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85292 states, 83373 states have (on average 1.3643745577105297) internal successors, (113752), 83405 states have internal predecessors, (113752), 1760 states have call successors, (1760), 156 states have call predecessors, (1760), 156 states have return successors, (3520), 1742 states have call predecessors, (3520), 1760 states have call successors, (3520) [2021-11-09 09:34:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85292 states to 85292 states and 119032 transitions. [2021-11-09 09:34:39,385 INFO L78 Accepts]: Start accepts. Automaton has 85292 states and 119032 transitions. Word has length 170 [2021-11-09 09:34:39,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:39,385 INFO L470 AbstractCegarLoop]: Abstraction has 85292 states and 119032 transitions. [2021-11-09 09:34:39,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 85292 states and 119032 transitions. [2021-11-09 09:34:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-09 09:34:39,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:39,390 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:39,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:34:39,391 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ib_uverbs_release_fileErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 09:34:39,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1143899565, now seen corresponding path program 1 times [2021-11-09 09:34:39,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:34:39,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267806046] [2021-11-09 09:34:39,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:39,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:34:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-09 09:34:40,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:34:40,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267806046] [2021-11-09 09:34:40,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267806046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:40,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:40,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:34:40,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894400129] [2021-11-09 09:34:40,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:34:40,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:34:40,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:34:40,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:34:40,589 INFO L87 Difference]: Start difference. First operand 85292 states and 119032 transitions. Second operand has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:46,907 INFO L93 Difference]: Finished difference Result 170294 states and 242505 transitions. [2021-11-09 09:34:46,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:34:46,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 4 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2021-11-09 09:34:46,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:47,290 INFO L225 Difference]: With dead ends: 170294 [2021-11-09 09:34:47,290 INFO L226 Difference]: Without dead ends: 85106 [2021-11-09 09:34:47,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:34:47,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85106 states.