./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:43:53,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:43:53,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:43:53,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:43:53,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:43:53,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:43:53,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:43:53,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:43:53,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:43:53,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:43:53,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:43:53,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:43:53,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:43:53,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:43:53,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:43:53,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:43:53,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:43:53,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:43:53,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:43:53,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:43:53,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:43:53,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:43:53,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:43:53,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:43:53,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:43:53,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:43:53,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:43:53,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:43:53,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:43:53,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:43:53,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:43:53,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:43:53,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:43:53,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:43:53,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:43:53,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:43:53,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:43:53,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:43:53,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:43:53,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:43:53,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:43:53,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:43:53,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:43:53,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:43:53,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:43:53,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:43:53,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:43:53,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:43:53,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:43:53,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:43:53,859 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:43:53,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:43:53,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:43:53,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:43:53,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:43:53,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:43:53,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:43:53,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:43:53,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:43:53,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:43:53,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:43:53,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:43:53,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:43:53,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:43:53,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:43:53,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:43:53,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:43:53,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:43:53,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:43:53,866 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:43:53,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:43:53,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:43:53,867 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_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2022-11-16 11:43:54,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:43:54,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:43:54,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:43:54,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:43:54,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:43:54,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-11-16 11:43:54,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/data/55b2b1be0/42b0503b034a411b88e2dcd7230e2ad1/FLAG5c0f3ba9f [2022-11-16 11:43:55,193 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:43:55,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-11-16 11:43:55,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/data/55b2b1be0/42b0503b034a411b88e2dcd7230e2ad1/FLAG5c0f3ba9f [2022-11-16 11:43:55,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/data/55b2b1be0/42b0503b034a411b88e2dcd7230e2ad1 [2022-11-16 11:43:55,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:43:55,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:43:55,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:43:55,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:43:55,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:43:55,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:43:55" (1/1) ... [2022-11-16 11:43:55,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a25ce50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:55, skipping insertion in model container [2022-11-16 11:43:55,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:43:55" (1/1) ... [2022-11-16 11:43:55,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:43:55,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:43:56,336 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-11-16 11:43:56,337 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-11-16 11:43:56,832 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-11-16 11:43:58,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:43:58,298 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:43:58,426 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-11-16 11:43:58,426 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-11-16 11:43:58,436 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-11-16 11:43:58,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:43:59,054 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:43:59,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59 WrapperNode [2022-11-16 11:43:59,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:43:59,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:43:59,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:43:59,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:43:59,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,390 INFO L138 Inliner]: procedures = 250, calls = 2395, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6488 [2022-11-16 11:43:59,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:43:59,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:43:59,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:43:59,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:43:59,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,665 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:43:59,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:43:59,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:43:59,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:43:59,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (1/1) ... [2022-11-16 11:43:59,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:43:59,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:43:59,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:43:59,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d366bd13-b240-4190-a104-27649f3e33b6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:43:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2022-11-16 11:43:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2022-11-16 11:43:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 11:43:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:43:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:43:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-16 11:43:59,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-16 11:43:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:43:59,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:43:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2022-11-16 11:43:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2022-11-16 11:43:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-16 11:43:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-16 11:43:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-16 11:43:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-16 11:43:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 11:43:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 11:43:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 11:43:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 11:43:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:43:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:43:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2022-11-16 11:43:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2022-11-16 11:43:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2022-11-16 11:43:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2022-11-16 11:43:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-11-16 11:43:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-11-16 11:43:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2022-11-16 11:43:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2022-11-16 11:43:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-11-16 11:43:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-11-16 11:43:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-11-16 11:43:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-11-16 11:43:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:43:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:43:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:43:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:43:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2022-11-16 11:43:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2022-11-16 11:43:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-16 11:43:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-16 11:43:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:43:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:43:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2022-11-16 11:43:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2022-11-16 11:43:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2022-11-16 11:43:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2022-11-16 11:43:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:43:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:43:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:43:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:43:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2022-11-16 11:43:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2022-11-16 11:43:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:43:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:43:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-16 11:43:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-16 11:43:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-16 11:43:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-16 11:43:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:43:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:43:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:43:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-16 11:43:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-16 11:43:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:43:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-16 11:43:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-16 11:43:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2022-11-16 11:43:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2022-11-16 11:43:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:43:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:43:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:43:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:43:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 11:43:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 11:43:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2022-11-16 11:43:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2022-11-16 11:43:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 11:43:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 11:43:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2022-11-16 11:43:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2022-11-16 11:43:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:43:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 11:43:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 11:43:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 11:43:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 11:43:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2022-11-16 11:43:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2022-11-16 11:43:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-16 11:43:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-16 11:43:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:43:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:43:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2022-11-16 11:43:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2022-11-16 11:43:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:43:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2022-11-16 11:43:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2022-11-16 11:43:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-16 11:43:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-16 11:43:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:43:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2022-11-16 11:43:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2022-11-16 11:43:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2022-11-16 11:43:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2022-11-16 11:43:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:43:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:43:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2022-11-16 11:43:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2022-11-16 11:43:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 11:43:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 11:43:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-16 11:43:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-16 11:43:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:43:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:43:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:43:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 11:43:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 11:43:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2022-11-16 11:43:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2022-11-16 11:43:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-16 11:43:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-16 11:43:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:43:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:43:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:43:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2022-11-16 11:43:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2022-11-16 11:43:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2022-11-16 11:43:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2022-11-16 11:43:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-16 11:43:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-16 11:43:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:43:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2022-11-16 11:43:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2022-11-16 11:43:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:43:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:43:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-16 11:43:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-16 11:43:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:43:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:43:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-16 11:43:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-16 11:43:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-16 11:43:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-16 11:43:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2022-11-16 11:43:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2022-11-16 11:43:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-16 11:43:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-16 11:43:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2022-11-16 11:43:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2022-11-16 11:43:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2022-11-16 11:43:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2022-11-16 11:43:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 11:43:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 11:43:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-16 11:43:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-16 11:43:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2022-11-16 11:43:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2022-11-16 11:43:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-16 11:43:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-16 11:43:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-16 11:43:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-16 11:43:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:43:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2022-11-16 11:43:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2022-11-16 11:43:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-16 11:43:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-16 11:43:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-16 11:43:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-16 11:43:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:43:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:43:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-16 11:43:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-16 11:44:00,824 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:44:00,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:44:01,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:44:14,411 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:44:14,438 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:44:14,438 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:44:14,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:14 BoogieIcfgContainer [2022-11-16 11:44:14,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:44:14,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:44:14,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:44:14,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:44:14,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:43:55" (1/3) ... [2022-11-16 11:44:14,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bac2a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:14, skipping insertion in model container [2022-11-16 11:44:14,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:43:59" (2/3) ... [2022-11-16 11:44:14,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bac2a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:14, skipping insertion in model container [2022-11-16 11:44:14,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:14" (3/3) ... [2022-11-16 11:44:14,463 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-11-16 11:44:14,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:44:14,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:44:14,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:44:14,613 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d4cab46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:44:14,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:44:14,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 2021 states, 1506 states have (on average 1.399734395750332) internal successors, (2108), 1530 states have internal predecessors, (2108), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) [2022-11-16 11:44:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 11:44:14,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:14,664 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 11:44:14,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:14,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:14,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1166204265, now seen corresponding path program 1 times [2022-11-16 11:44:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:14,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447274307] [2022-11-16 11:44:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:14,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:44:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:15,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:44:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:44:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-16 11:44:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 11:44:15,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:15,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447274307] [2022-11-16 11:44:15,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447274307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:15,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:15,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090556619] [2022-11-16 11:44:15,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:15,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:15,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:15,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:15,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:15,594 INFO L87 Difference]: Start difference. First operand has 2021 states, 1506 states have (on average 1.399734395750332) internal successors, (2108), 1530 states have internal predecessors, (2108), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:44:20,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:25,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:27,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:33,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:35,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:45,664 INFO L93 Difference]: Finished difference Result 6764 states and 10444 transitions. [2022-11-16 11:44:45,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:44:45,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-11-16 11:44:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:45,755 INFO L225 Difference]: With dead ends: 6764 [2022-11-16 11:44:45,755 INFO L226 Difference]: Without dead ends: 4697 [2022-11-16 11:44:45,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:44:45,796 INFO L413 NwaCegarLoop]: 2766 mSDtfsCounter, 5072 mSDsluCounter, 4843 mSDsCounter, 0 mSdLazyCounter, 4708 mSolverCounterSat, 2741 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5432 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 7452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2741 IncrementalHoareTripleChecker+Valid, 4708 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:45,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5432 Valid, 7609 Invalid, 7452 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2741 Valid, 4708 Invalid, 3 Unknown, 0 Unchecked, 29.1s Time] [2022-11-16 11:44:45,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2022-11-16 11:44:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 3664. [2022-11-16 11:44:46,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 2733 states have (on average 1.3918770581778266) internal successors, (3804), 2762 states have internal predecessors, (3804), 789 states have call successors, (789), 142 states have call predecessors, (789), 141 states have return successors, (788), 786 states have call predecessors, (788), 788 states have call successors, (788) [2022-11-16 11:44:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 5381 transitions. [2022-11-16 11:44:46,249 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 5381 transitions. Word has length 58 [2022-11-16 11:44:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:46,250 INFO L495 AbstractCegarLoop]: Abstraction has 3664 states and 5381 transitions. [2022-11-16 11:44:46,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:44:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5381 transitions. [2022-11-16 11:44:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:44:46,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:46,265 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-16 11:44:46,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:44:46,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:46,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:46,266 INFO L85 PathProgramCache]: Analyzing trace with hash -805410531, now seen corresponding path program 1 times [2022-11-16 11:44:46,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:46,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025342397] [2022-11-16 11:44:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:44:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:44:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:44:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-16 11:44:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 11:44:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:44:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:44:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 11:44:47,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:47,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025342397] [2022-11-16 11:44:47,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025342397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:47,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:47,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:44:47,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353853113] [2022-11-16 11:44:47,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:47,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:47,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:47,365 INFO L87 Difference]: Start difference. First operand 3664 states and 5381 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:44:50,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:52,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:59,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:13,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:13,035 INFO L93 Difference]: Finished difference Result 9779 states and 15259 transitions. [2022-11-16 11:45:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:45:13,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-11-16 11:45:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:13,137 INFO L225 Difference]: With dead ends: 9779 [2022-11-16 11:45:13,138 INFO L226 Difference]: Without dead ends: 9776 [2022-11-16 11:45:13,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:13,151 INFO L413 NwaCegarLoop]: 2932 mSDtfsCounter, 6879 mSDsluCounter, 5662 mSDsCounter, 0 mSdLazyCounter, 5259 mSolverCounterSat, 4060 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7293 SdHoareTripleChecker+Valid, 8594 SdHoareTripleChecker+Invalid, 9320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4060 IncrementalHoareTripleChecker+Valid, 5259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:13,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7293 Valid, 8594 Invalid, 9320 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4060 Valid, 5259 Invalid, 1 Unknown, 0 Unchecked, 24.7s Time] [2022-11-16 11:45:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9776 states. [2022-11-16 11:45:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9776 to 7502. [2022-11-16 11:45:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 5580 states have (on average 1.396953405017921) internal successors, (7795), 5644 states have internal predecessors, (7795), 1627 states have call successors, (1627), 271 states have call predecessors, (1627), 294 states have return successors, (1964), 1632 states have call predecessors, (1964), 1626 states have call successors, (1964) [2022-11-16 11:45:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 11386 transitions. [2022-11-16 11:45:13,716 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 11386 transitions. Word has length 84 [2022-11-16 11:45:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:13,719 INFO L495 AbstractCegarLoop]: Abstraction has 7502 states and 11386 transitions. [2022-11-16 11:45:13,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 11:45:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 11386 transitions. [2022-11-16 11:45:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 11:45:13,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:13,731 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-16 11:45:13,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:45:13,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:13,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1916847163, now seen corresponding path program 1 times [2022-11-16 11:45:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:13,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090654872] [2022-11-16 11:45:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:13,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:45:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:45:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:45:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:45:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:45:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:45:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-16 11:45:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 11:45:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 11:45:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 11:45:14,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090654872] [2022-11-16 11:45:14,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090654872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:14,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:14,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:45:14,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589391199] [2022-11-16 11:45:14,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:14,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:45:14,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:45:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:14,198 INFO L87 Difference]: Start difference. First operand 7502 states and 11386 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:45:16,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:20,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:25,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:27,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:31,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:33,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:49,457 INFO L93 Difference]: Finished difference Result 27860 states and 43680 transitions. [2022-11-16 11:45:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:45:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-11-16 11:45:49,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:49,641 INFO L225 Difference]: With dead ends: 27860 [2022-11-16 11:45:49,641 INFO L226 Difference]: Without dead ends: 20369 [2022-11-16 11:45:49,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:45:49,710 INFO L413 NwaCegarLoop]: 2641 mSDtfsCounter, 7995 mSDsluCounter, 6200 mSDsCounter, 0 mSdLazyCounter, 6800 mSolverCounterSat, 5262 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8471 SdHoareTripleChecker+Valid, 8841 SdHoareTripleChecker+Invalid, 12066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5262 IncrementalHoareTripleChecker+Valid, 6800 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:49,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8471 Valid, 8841 Invalid, 12066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5262 Valid, 6800 Invalid, 4 Unknown, 0 Unchecked, 33.8s Time] [2022-11-16 11:45:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20369 states. [2022-11-16 11:45:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20369 to 15718. [2022-11-16 11:45:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15718 states, 11857 states have (on average 1.4031373871974362) internal successors, (16637), 11984 states have internal predecessors, (16637), 3282 states have call successors, (3282), 492 states have call predecessors, (3282), 578 states have return successors, (4014), 3327 states have call predecessors, (4014), 3281 states have call successors, (4014) [2022-11-16 11:45:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15718 states to 15718 states and 23933 transitions. [2022-11-16 11:45:51,135 INFO L78 Accepts]: Start accepts. Automaton has 15718 states and 23933 transitions. Word has length 103 [2022-11-16 11:45:51,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:51,136 INFO L495 AbstractCegarLoop]: Abstraction has 15718 states and 23933 transitions. [2022-11-16 11:45:51,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 11:45:51,137 INFO L276 IsEmpty]: Start isEmpty. Operand 15718 states and 23933 transitions. [2022-11-16 11:45:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-16 11:45:51,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:51,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:51,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:45:51,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:51,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1978275634, now seen corresponding path program 1 times [2022-11-16 11:45:51,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:51,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510621332] [2022-11-16 11:45:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:51,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:45:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:45:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:45:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:45:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:45:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:45:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:45:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 11:45:51,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:51,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510621332] [2022-11-16 11:45:51,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510621332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:51,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:51,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:45:51,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306373235] [2022-11-16 11:45:51,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:51,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:45:51,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:51,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:45:51,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:51,885 INFO L87 Difference]: Start difference. First operand 15718 states and 23933 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:45:58,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:05,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:07,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:12,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:22,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:26,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:43,372 INFO L93 Difference]: Finished difference Result 59461 states and 94855 transitions. [2022-11-16 11:46:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:46:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 115 [2022-11-16 11:46:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:43,889 INFO L225 Difference]: With dead ends: 59461 [2022-11-16 11:46:43,889 INFO L226 Difference]: Without dead ends: 43763 [2022-11-16 11:46:44,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 11:46:44,214 INFO L413 NwaCegarLoop]: 2531 mSDtfsCounter, 12194 mSDsluCounter, 11459 mSDsCounter, 0 mSdLazyCounter, 12932 mSolverCounterSat, 5610 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12651 SdHoareTripleChecker+Valid, 13990 SdHoareTripleChecker+Invalid, 18545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5610 IncrementalHoareTripleChecker+Valid, 12932 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:44,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12651 Valid, 13990 Invalid, 18545 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5610 Valid, 12932 Invalid, 3 Unknown, 0 Unchecked, 47.3s Time] [2022-11-16 11:46:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43763 states. [2022-11-16 11:46:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43763 to 31343. [2022-11-16 11:46:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31343 states, 23640 states have (on average 1.4019458544839256) internal successors, (33142), 23910 states have internal predecessors, (33142), 6536 states have call successors, (6536), 977 states have call predecessors, (6536), 1166 states have return successors, (8364), 6627 states have call predecessors, (8364), 6535 states have call successors, (8364) [2022-11-16 11:46:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31343 states to 31343 states and 48042 transitions. [2022-11-16 11:46:48,780 INFO L78 Accepts]: Start accepts. Automaton has 31343 states and 48042 transitions. Word has length 115 [2022-11-16 11:46:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:48,783 INFO L495 AbstractCegarLoop]: Abstraction has 31343 states and 48042 transitions. [2022-11-16 11:46:48,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:46:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 31343 states and 48042 transitions. [2022-11-16 11:46:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-16 11:46:48,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:48,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:48,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:46:48,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:48,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:48,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1149762693, now seen corresponding path program 1 times [2022-11-16 11:46:48,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:48,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467071432] [2022-11-16 11:46:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:48,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:46:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:46:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:46:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-16 11:46:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:46:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 11:46:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-16 11:46:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:46:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:46:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 11:46:49,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:49,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467071432] [2022-11-16 11:46:49,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467071432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:49,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:49,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:46:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978012151] [2022-11-16 11:46:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:49,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:46:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:46:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:46:49,598 INFO L87 Difference]: Start difference. First operand 31343 states and 48042 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:46:53,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:58,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:06,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:07,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:14,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:16,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:35,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:50,195 INFO L93 Difference]: Finished difference Result 118698 states and 191012 transitions. [2022-11-16 11:47:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:47:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 116 [2022-11-16 11:47:50,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:51,432 INFO L225 Difference]: With dead ends: 118698 [2022-11-16 11:47:51,432 INFO L226 Difference]: Without dead ends: 87375 [2022-11-16 11:47:51,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 11:47:51,852 INFO L413 NwaCegarLoop]: 2504 mSDtfsCounter, 12785 mSDsluCounter, 11329 mSDsCounter, 0 mSdLazyCounter, 13530 mSolverCounterSat, 5675 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13241 SdHoareTripleChecker+Valid, 13833 SdHoareTripleChecker+Invalid, 19209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5675 IncrementalHoareTripleChecker+Valid, 13530 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:51,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13241 Valid, 13833 Invalid, 19209 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5675 Valid, 13530 Invalid, 4 Unknown, 0 Unchecked, 52.9s Time] [2022-11-16 11:47:51,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87375 states. [2022-11-16 11:47:57,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87375 to 62601. [2022-11-16 11:47:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62601 states, 47214 states have (on average 1.401279281569026) internal successors, (66160), 47770 states have internal predecessors, (66160), 13044 states have call successors, (13044), 1947 states have call predecessors, (13044), 2342 states have return successors, (17461), 13227 states have call predecessors, (17461), 13043 states have call successors, (17461) [2022-11-16 11:47:58,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62601 states to 62601 states and 96665 transitions. [2022-11-16 11:47:58,578 INFO L78 Accepts]: Start accepts. Automaton has 62601 states and 96665 transitions. Word has length 116 [2022-11-16 11:47:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:58,579 INFO L495 AbstractCegarLoop]: Abstraction has 62601 states and 96665 transitions. [2022-11-16 11:47:58,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:47:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 62601 states and 96665 transitions. [2022-11-16 11:47:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-16 11:47:58,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:58,594 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:58,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:47:58,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:58,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1330129205, now seen corresponding path program 1 times [2022-11-16 11:47:58,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:58,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860987553] [2022-11-16 11:47:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:47:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:47:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:47:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 11:47:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:47:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 11:47:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-16 11:47:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:47:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:47:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 11:47:59,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:59,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860987553] [2022-11-16 11:47:59,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860987553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:59,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:59,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:47:59,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066194919] [2022-11-16 11:47:59,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:59,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:47:59,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:47:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:47:59,626 INFO L87 Difference]: Start difference. First operand 62601 states and 96665 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:48:07,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:15,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:17,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:44,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:47,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:08,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:08,633 INFO L93 Difference]: Finished difference Result 237188 states and 385365 transitions. [2022-11-16 11:49:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:49:08,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2022-11-16 11:49:08,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:11,257 INFO L225 Difference]: With dead ends: 237188 [2022-11-16 11:49:11,258 INFO L226 Difference]: Without dead ends: 174607 [2022-11-16 11:49:11,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 11:49:11,877 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 11705 mSDsluCounter, 10991 mSDsCounter, 0 mSdLazyCounter, 13415 mSolverCounterSat, 4306 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12166 SdHoareTripleChecker+Valid, 13519 SdHoareTripleChecker+Invalid, 17725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4306 IncrementalHoareTripleChecker+Valid, 13415 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:11,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12166 Valid, 13519 Invalid, 17725 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4306 Valid, 13415 Invalid, 4 Unknown, 0 Unchecked, 51.8s Time] [2022-11-16 11:49:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174607 states. [2022-11-16 11:49:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174607 to 125125. [2022-11-16 11:49:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125125 states, 94370 states have (on average 1.4008265338560983) internal successors, (132196), 95498 states have internal predecessors, (132196), 26060 states have call successors, (26060), 3887 states have call predecessors, (26060), 4694 states have return successors, (36551), 26427 states have call predecessors, (36551), 26059 states have call successors, (36551) [2022-11-16 11:49:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125125 states to 125125 states and 194807 transitions. [2022-11-16 11:49:25,763 INFO L78 Accepts]: Start accepts. Automaton has 125125 states and 194807 transitions. Word has length 117 [2022-11-16 11:49:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:49:25,764 INFO L495 AbstractCegarLoop]: Abstraction has 125125 states and 194807 transitions. [2022-11-16 11:49:25,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:49:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 125125 states and 194807 transitions. [2022-11-16 11:49:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 11:49:25,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:49:25,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:25,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:49:25,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:49:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash -536760972, now seen corresponding path program 1 times [2022-11-16 11:49:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:25,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257272626] [2022-11-16 11:49:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:49:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:49:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:49:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:49:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:49:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:49:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:49:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:49:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 11:49:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:49:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 11:49:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 11:49:26,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:26,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257272626] [2022-11-16 11:49:26,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257272626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:26,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:26,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:49:26,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408687060] [2022-11-16 11:49:26,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:26,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:49:26,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:49:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:49:26,539 INFO L87 Difference]: Start difference. First operand 125125 states and 194807 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-16 11:49:34,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:44,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:49:53,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []