./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/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_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 20:47:23,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:47:23,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:47:23,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:47:23,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:47:23,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:47:23,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:47:23,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:47:23,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:47:23,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:47:23,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:47:23,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:47:23,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:47:23,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:47:23,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:47:23,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:47:23,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:47:23,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:47:23,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:47:23,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:47:23,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:47:23,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:47:23,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:47:23,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:47:23,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:47:23,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:47:23,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:47:24,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:47:24,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:47:24,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:47:24,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:47:24,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:47:24,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:47:24,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:47:24,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:47:24,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:47:24,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:47:24,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:47:24,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:47:24,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:47:24,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:47:24,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:47:24,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:47:24,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:47:24,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:47:24,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:47:24,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:47:24,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:47:24,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:47:24,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:47:24,068 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:47:24,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:47:24,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:47:24,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:47:24,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:47:24,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:47:24,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:47:24,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:47:24,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:47:24,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:47:24,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:47:24,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:47:24,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:47:24,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:47:24,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:47:24,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:47:24,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:47:24,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:47:24,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:47:24,075 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:47:24,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:47:24,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:47:24,076 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_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2022-11-18 20:47:24,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:47:24,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:47:24,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:47:24,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:47:24,383 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:47:24,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/../../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 [2022-11-18 20:47:24,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/data/f2b407e8a/ede89a6bc8b041b59be6e59151dc4c3a/FLAGd6d8fb7dc [2022-11-18 20:47:25,355 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:47:25,356 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/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 [2022-11-18 20:47:25,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/data/f2b407e8a/ede89a6bc8b041b59be6e59151dc4c3a/FLAGd6d8fb7dc [2022-11-18 20:47:25,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/data/f2b407e8a/ede89a6bc8b041b59be6e59151dc4c3a [2022-11-18 20:47:25,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:47:25,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:47:25,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:47:25,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:47:25,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:47:25,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:47:25" (1/1) ... [2022-11-18 20:47:25,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d832fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:25, skipping insertion in model container [2022-11-18 20:47:25,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:47:25" (1/1) ... [2022-11-18 20:47:25,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:47:25,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:47:26,472 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-11-18 20:47:26,472 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-11-18 20:47:27,011 WARN L234 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_b5f66367-2f2c-43d2-96d9-8229c843a9fd/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] [2022-11-18 20:47:28,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:47:28,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:47:28,361 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-11-18 20:47:28,361 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-11-18 20:47:28,373 WARN L234 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_b5f66367-2f2c-43d2-96d9-8229c843a9fd/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] [2022-11-18 20:47:28,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:47:28,949 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:47:28,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28 WrapperNode [2022-11-18 20:47:28,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:47:28,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:47:28,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:47:28,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:47:28,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,316 INFO L138 Inliner]: procedures = 250, calls = 2395, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6488 [2022-11-18 20:47:29,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:47:29,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:47:29,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:47:29,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:47:29,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:47:29,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:47:29,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:47:29,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:47:29,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (1/1) ... [2022-11-18 20:47:29,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:47:29,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:29,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:47:29,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f66367-2f2c-43d2-96d9-8229c843a9fd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:47:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2022-11-18 20:47:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2022-11-18 20:47:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-18 20:47:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:47:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:47:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 20:47:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 20:47:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:47:29,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:47:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2022-11-18 20:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2022-11-18 20:47:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-18 20:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-18 20:47:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-18 20:47:29,997 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-18 20:47:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 20:47:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 20:47:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 20:47:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 20:47:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:47:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:47:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2022-11-18 20:47:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2022-11-18 20:47:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2022-11-18 20:47:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2022-11-18 20:47:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-11-18 20:47:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-11-18 20:47:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2022-11-18 20:47:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2022-11-18 20:47:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-11-18 20:47:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-11-18 20:47:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-11-18 20:47:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-11-18 20:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 20:47:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 20:47:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:47:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2022-11-18 20:47:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2022-11-18 20:47:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-18 20:47:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-18 20:47:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:47:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:47:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2022-11-18 20:47:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2022-11-18 20:47:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2022-11-18 20:47:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2022-11-18 20:47:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:47:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:47:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:47:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:47:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2022-11-18 20:47:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2022-11-18 20:47:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:47:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:47:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 20:47:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 20:47:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-18 20:47:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-18 20:47:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:47:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:47:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:47:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-18 20:47:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-18 20:47:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:47:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-18 20:47:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-18 20:47:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2022-11-18 20:47:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2022-11-18 20:47:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 20:47:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 20:47:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 20:47:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 20:47:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 20:47:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 20:47:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2022-11-18 20:47:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2022-11-18 20:47:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 20:47:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 20:47:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2022-11-18 20:47:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2022-11-18 20:47:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:47:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 20:47:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 20:47:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-18 20:47:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-18 20:47:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2022-11-18 20:47:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2022-11-18 20:47:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 20:47:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 20:47:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 20:47:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 20:47:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2022-11-18 20:47:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2022-11-18 20:47:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:47:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2022-11-18 20:47:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2022-11-18 20:47:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-18 20:47:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-18 20:47:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:47:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2022-11-18 20:47:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2022-11-18 20:47:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2022-11-18 20:47:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2022-11-18 20:47:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:47:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:47:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2022-11-18 20:47:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2022-11-18 20:47:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 20:47:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 20:47:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-18 20:47:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-18 20:47:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:47:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:47:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:47:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-18 20:47:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-18 20:47:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2022-11-18 20:47:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2022-11-18 20:47:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 20:47:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 20:47:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:47:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:47:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:47:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2022-11-18 20:47:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2022-11-18 20:47:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2022-11-18 20:47:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2022-11-18 20:47:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-18 20:47:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-18 20:47:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:47:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2022-11-18 20:47:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2022-11-18 20:47:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:47:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 20:47:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 20:47:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 20:47:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:47:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:47:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-18 20:47:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-18 20:47:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 20:47:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 20:47:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2022-11-18 20:47:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2022-11-18 20:47:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-18 20:47:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-18 20:47:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2022-11-18 20:47:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2022-11-18 20:47:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2022-11-18 20:47:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2022-11-18 20:47:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 20:47:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 20:47:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-18 20:47:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-18 20:47:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2022-11-18 20:47:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2022-11-18 20:47:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-18 20:47:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-18 20:47:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 20:47:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 20:47:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:47:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2022-11-18 20:47:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2022-11-18 20:47:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-18 20:47:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-18 20:47:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-18 20:47:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-18 20:47:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:47:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:47:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 20:47:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 20:47:31,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:47:31,212 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:47:32,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:47:45,158 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:47:45,175 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:47:45,175 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:47:45,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:47:45 BoogieIcfgContainer [2022-11-18 20:47:45,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:47:45,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:47:45,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:47:45,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:47:45,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:47:25" (1/3) ... [2022-11-18 20:47:45,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a988ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:47:45, skipping insertion in model container [2022-11-18 20:47:45,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:47:28" (2/3) ... [2022-11-18 20:47:45,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a988ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:47:45, skipping insertion in model container [2022-11-18 20:47:45,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:47:45" (3/3) ... [2022-11-18 20:47:45,189 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 [2022-11-18 20:47:45,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:47:45,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:47:45,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:47:45,300 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;@20303a11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:47:45,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:47:45,310 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) [2022-11-18 20:47:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-18 20:47:45,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:47:45,331 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] [2022-11-18 20:47:45,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:47:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1166204265, now seen corresponding path program 1 times [2022-11-18 20:47:45,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:45,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866205185] [2022-11-18 20:47:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:45,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:47:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:47:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:46,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:47:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:47:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:47:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:47:46,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:46,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866205185] [2022-11-18 20:47:46,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866205185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:46,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:46,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:47:46,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255389689] [2022-11-18 20:47:46,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:46,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:47:46,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:46,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:47:46,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:47:46,192 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) [2022-11-18 20:47:50,573 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 [] [2022-11-18 20:47:56,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:47:58,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:03,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:14,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:14,376 INFO L93 Difference]: Finished difference Result 6764 states and 10444 transitions. [2022-11-18 20:48:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:48:14,379 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 [2022-11-18 20:48:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:14,462 INFO L225 Difference]: With dead ends: 6764 [2022-11-18 20:48:14,462 INFO L226 Difference]: Without dead ends: 4697 [2022-11-18 20:48:14,497 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 [2022-11-18 20:48:14,502 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 5072 mSDsluCounter, 4846 mSDsCounter, 0 mSdLazyCounter, 4714 mSolverCounterSat, 2741 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5431 SdHoareTripleChecker+Valid, 7614 SdHoareTripleChecker+Invalid, 7458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2741 IncrementalHoareTripleChecker+Valid, 4714 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:14,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5431 Valid, 7614 Invalid, 7458 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2741 Valid, 4714 Invalid, 3 Unknown, 0 Unchecked, 27.2s Time] [2022-11-18 20:48:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2022-11-18 20:48:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 3664. [2022-11-18 20:48:14,913 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) [2022-11-18 20:48:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 5381 transitions. [2022-11-18 20:48:14,965 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 5381 transitions. Word has length 58 [2022-11-18 20:48:14,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:14,966 INFO L495 AbstractCegarLoop]: Abstraction has 3664 states and 5381 transitions. [2022-11-18 20:48:14,966 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) [2022-11-18 20:48:14,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5381 transitions. [2022-11-18 20:48:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:48:14,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:14,986 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] [2022-11-18 20:48:14,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:48:14,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -805410531, now seen corresponding path program 1 times [2022-11-18 20:48:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:14,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767362120] [2022-11-18 20:48:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:14,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:48:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:48:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:48:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:48:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 20:48:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:48:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:48:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:48:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 20:48:16,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:16,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767362120] [2022-11-18 20:48:16,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767362120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:16,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:16,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:48:16,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812637330] [2022-11-18 20:48:16,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:16,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:48:16,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:16,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:48:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:48:16,189 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) [2022-11-18 20:48:21,069 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 [] [2022-11-18 20:48:27,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:29,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:33,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:36,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:45,751 INFO L93 Difference]: Finished difference Result 9779 states and 15259 transitions. [2022-11-18 20:48:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:48:45,752 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 [2022-11-18 20:48:45,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:45,853 INFO L225 Difference]: With dead ends: 9779 [2022-11-18 20:48:45,853 INFO L226 Difference]: Without dead ends: 9776 [2022-11-18 20:48:45,865 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 [2022-11-18 20:48:45,867 INFO L413 NwaCegarLoop]: 2934 mSDtfsCounter, 6881 mSDsluCounter, 5661 mSDsCounter, 0 mSdLazyCounter, 5265 mSolverCounterSat, 4057 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7295 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 9325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4057 IncrementalHoareTripleChecker+Valid, 5265 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:45,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7295 Valid, 8595 Invalid, 9325 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4057 Valid, 5265 Invalid, 3 Unknown, 0 Unchecked, 28.7s Time] [2022-11-18 20:48:45,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9776 states. [2022-11-18 20:48:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9776 to 7502. [2022-11-18 20:48:46,388 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) [2022-11-18 20:48:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 11386 transitions. [2022-11-18 20:48:46,451 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 11386 transitions. Word has length 84 [2022-11-18 20:48:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:46,454 INFO L495 AbstractCegarLoop]: Abstraction has 7502 states and 11386 transitions. [2022-11-18 20:48:46,454 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) [2022-11-18 20:48:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 11386 transitions. [2022-11-18 20:48:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-18 20:48:46,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:46,475 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] [2022-11-18 20:48:46,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:48:46,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:46,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1916847163, now seen corresponding path program 1 times [2022-11-18 20:48:46,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:46,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480966923] [2022-11-18 20:48:46,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:46,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:48:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:48:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:48:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:48:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:48:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:48:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:48:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:48:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 20:48:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 20:48:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:48:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:48:46,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:46,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480966923] [2022-11-18 20:48:46,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480966923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:46,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:46,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:48:46,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911396781] [2022-11-18 20:48:46,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:46,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:48:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:46,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:48:46,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:48:46,915 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) [2022-11-18 20:48:51,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:56,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:48:58,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:03,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:19,872 INFO L93 Difference]: Finished difference Result 27860 states and 43680 transitions. [2022-11-18 20:49:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:49:19,873 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 [2022-11-18 20:49:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:20,072 INFO L225 Difference]: With dead ends: 27860 [2022-11-18 20:49:20,073 INFO L226 Difference]: Without dead ends: 20369 [2022-11-18 20:49:20,155 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 [2022-11-18 20:49:20,165 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 7997 mSDsluCounter, 6200 mSDsCounter, 0 mSdLazyCounter, 6781 mSolverCounterSat, 5269 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8475 SdHoareTripleChecker+Valid, 8840 SdHoareTripleChecker+Invalid, 12052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5269 IncrementalHoareTripleChecker+Valid, 6781 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:20,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8475 Valid, 8840 Invalid, 12052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5269 Valid, 6781 Invalid, 2 Unknown, 0 Unchecked, 31.3s Time] [2022-11-18 20:49:20,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20369 states. [2022-11-18 20:49:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20369 to 15718. [2022-11-18 20:49:21,365 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) [2022-11-18 20:49:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15718 states to 15718 states and 23933 transitions. [2022-11-18 20:49:21,494 INFO L78 Accepts]: Start accepts. Automaton has 15718 states and 23933 transitions. Word has length 103 [2022-11-18 20:49:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:21,495 INFO L495 AbstractCegarLoop]: Abstraction has 15718 states and 23933 transitions. [2022-11-18 20:49:21,496 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) [2022-11-18 20:49:21,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15718 states and 23933 transitions. [2022-11-18 20:49:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-18 20:49:21,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:21,513 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] [2022-11-18 20:49:21,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:49:21,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:21,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1330129205, now seen corresponding path program 1 times [2022-11-18 20:49:21,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:21,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199729150] [2022-11-18 20:49:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:21,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:49:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:49:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:21,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:49:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:49:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:49:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:49:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:49:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:49:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:49:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:49:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:49:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:22,295 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:49:22,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:22,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199729150] [2022-11-18 20:49:22,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199729150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:22,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:22,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:49:22,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411424393] [2022-11-18 20:49:22,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:22,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:49:22,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:22,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:49:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:49:22,300 INFO L87 Difference]: Start difference. First operand 15718 states and 23933 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) [2022-11-18 20:49:30,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:37,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:39,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:45,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:46,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:49:54,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:50:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:15,760 INFO L93 Difference]: Finished difference Result 59477 states and 94887 transitions. [2022-11-18 20:50:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:50:15,762 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 [2022-11-18 20:50:15,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:16,165 INFO L225 Difference]: With dead ends: 59477 [2022-11-18 20:50:16,165 INFO L226 Difference]: Without dead ends: 43779 [2022-11-18 20:50:16,324 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 [2022-11-18 20:50:16,328 INFO L413 NwaCegarLoop]: 2492 mSDtfsCounter, 12223 mSDsluCounter, 11395 mSDsCounter, 0 mSdLazyCounter, 12902 mSolverCounterSat, 5621 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12683 SdHoareTripleChecker+Valid, 13887 SdHoareTripleChecker+Invalid, 18527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5621 IncrementalHoareTripleChecker+Valid, 12902 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:16,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12683 Valid, 13887 Invalid, 18527 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5621 Valid, 12902 Invalid, 4 Unknown, 0 Unchecked, 49.1s Time] [2022-11-18 20:50:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43779 states. [2022-11-18 20:50:19,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43779 to 31359. [2022-11-18 20:50:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31359 states, 23656 states have (on average 1.402350355089618) internal successors, (33174), 23926 states have internal predecessors, (33174), 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) [2022-11-18 20:50:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31359 states to 31359 states and 48074 transitions. [2022-11-18 20:50:19,972 INFO L78 Accepts]: Start accepts. Automaton has 31359 states and 48074 transitions. Word has length 117 [2022-11-18 20:50:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:19,973 INFO L495 AbstractCegarLoop]: Abstraction has 31359 states and 48074 transitions. [2022-11-18 20:50:19,973 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) [2022-11-18 20:50:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 31359 states and 48074 transitions. [2022-11-18 20:50:19,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-18 20:50:19,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:19,987 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] [2022-11-18 20:50:19,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:50:19,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:19,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash -536760972, now seen corresponding path program 1 times [2022-11-18 20:50:19,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:19,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876494561] [2022-11-18 20:50:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:19,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:50:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:50:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:50:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:50:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 20:50:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:50:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:50:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:50:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:50:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:50:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:50:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:50:20,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:20,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876494561] [2022-11-18 20:50:20,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876494561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:20,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:20,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:50:20,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619584771] [2022-11-18 20:50:20,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:20,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:50:20,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:50:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:50:20,991 INFO L87 Difference]: Start difference. First operand 31359 states and 48074 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) [2022-11-18 20:50:28,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:50:37,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:50:44,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:50:46,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:51:09,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:09,298 INFO L93 Difference]: Finished difference Result 118690 states and 191020 transitions. [2022-11-18 20:51:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:51:09,299 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 114 [2022-11-18 20:51:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:10,449 INFO L225 Difference]: With dead ends: 118690 [2022-11-18 20:51:10,449 INFO L226 Difference]: Without dead ends: 87351 [2022-11-18 20:51:10,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=306, Invalid=884, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:51:10,936 INFO L413 NwaCegarLoop]: 2928 mSDtfsCounter, 12210 mSDsluCounter, 12056 mSDsCounter, 0 mSdLazyCounter, 11792 mSolverCounterSat, 5496 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12667 SdHoareTripleChecker+Valid, 14984 SdHoareTripleChecker+Invalid, 17290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5496 IncrementalHoareTripleChecker+Valid, 11792 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:10,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12667 Valid, 14984 Invalid, 17290 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5496 Valid, 11792 Invalid, 2 Unknown, 0 Unchecked, 40.3s Time] [2022-11-18 20:51:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87351 states. [2022-11-18 20:51:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87351 to 62513. [2022-11-18 20:51:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62513 states, 47126 states have (on average 1.4018588464966262) internal successors, (66064), 47746 states have internal predecessors, (66064), 13044 states have call successors, (13044), 1947 states have call predecessors, (13044), 2342 states have return successors, (17461), 13163 states have call predecessors, (17461), 13043 states have call successors, (17461) [2022-11-18 20:51:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62513 states to 62513 states and 96569 transitions. [2022-11-18 20:51:18,195 INFO L78 Accepts]: Start accepts. Automaton has 62513 states and 96569 transitions. Word has length 114 [2022-11-18 20:51:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:18,196 INFO L495 AbstractCegarLoop]: Abstraction has 62513 states and 96569 transitions. [2022-11-18 20:51:18,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-18 20:51:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 62513 states and 96569 transitions. [2022-11-18 20:51:18,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-18 20:51:18,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:18,220 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] [2022-11-18 20:51:18,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:51:18,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:51:18,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1978275634, now seen corresponding path program 1 times [2022-11-18 20:51:18,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:18,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175513747] [2022-11-18 20:51:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:18,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:51:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:18,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:51:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:18,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:51:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:51:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:51:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:51:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:51:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:51:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:51:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:51:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:51:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:51:19,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:19,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175513747] [2022-11-18 20:51:19,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175513747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:19,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:19,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:51:19,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325276211] [2022-11-18 20:51:19,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:19,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:51:19,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:19,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:51:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:51:19,101 INFO L87 Difference]: Start difference. First operand 62513 states and 96569 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) [2022-11-18 20:51:26,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:51:33,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:51:35,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:51:42,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:52:21,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:21,341 INFO L93 Difference]: Finished difference Result 236892 states and 385021 transitions. [2022-11-18 20:52:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:52:21,341 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 [2022-11-18 20:52:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:23,703 INFO L225 Difference]: With dead ends: 236892 [2022-11-18 20:52:23,703 INFO L226 Difference]: Without dead ends: 174399 [2022-11-18 20:52:24,443 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 [2022-11-18 20:52:24,444 INFO L413 NwaCegarLoop]: 2525 mSDtfsCounter, 12199 mSDsluCounter, 11460 mSDsCounter, 0 mSdLazyCounter, 12913 mSolverCounterSat, 5589 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12656 SdHoareTripleChecker+Valid, 13985 SdHoareTripleChecker+Invalid, 18505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5589 IncrementalHoareTripleChecker+Valid, 12913 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:24,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12656 Valid, 13985 Invalid, 18505 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5589 Valid, 12913 Invalid, 3 Unknown, 0 Unchecked, 45.7s Time] [2022-11-18 20:52:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174399 states. [2022-11-18 20:52:35,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174399 to 124917. [2022-11-18 20:52:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124917 states, 94162 states have (on average 1.4012021834710393) internal successors, (131940), 95418 states have internal predecessors, (131940), 26060 states have call successors, (26060), 3887 states have call predecessors, (26060), 4694 states have return successors, (36551), 26299 states have call predecessors, (36551), 26059 states have call successors, (36551) [2022-11-18 20:52:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124917 states to 124917 states and 194551 transitions. [2022-11-18 20:52:37,493 INFO L78 Accepts]: Start accepts. Automaton has 124917 states and 194551 transitions. Word has length 115 [2022-11-18 20:52:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:37,494 INFO L495 AbstractCegarLoop]: Abstraction has 124917 states and 194551 transitions. [2022-11-18 20:52:37,494 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) [2022-11-18 20:52:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 124917 states and 194551 transitions. [2022-11-18 20:52:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-18 20:52:37,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:37,515 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] [2022-11-18 20:52:37,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:52:37,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:52:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:37,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1149762693, now seen corresponding path program 1 times [2022-11-18 20:52:37,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:37,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976436470] [2022-11-18 20:52:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:37,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:52:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:52:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 20:52:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:52:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:52:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:52:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:52:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:52:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 20:52:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:52:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:52:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:52:38,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:38,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976436470] [2022-11-18 20:52:38,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976436470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:38,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:38,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:52:38,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912701403] [2022-11-18 20:52:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:38,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:52:38,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:38,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:52:38,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:52:38,757 INFO L87 Difference]: Start difference. First operand 124917 states and 194551 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) [2022-11-18 20:52:44,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:52:48,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:52:56,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:52:57,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:52:59,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:53:07,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:53:09,584 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 []