./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y --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 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:27:36,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:27:36,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:27:36,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:27:36,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:27:36,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:27:36,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:27:36,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:27:36,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:27:36,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:27:36,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:27:36,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:27:36,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:27:36,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:27:36,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:27:36,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:27:36,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:27:36,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:27:36,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:27:36,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:27:36,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:27:36,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:27:36,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:27:36,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:27:36,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:27:36,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:27:36,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:27:36,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:27:36,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:27:36,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:27:36,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:27:36,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:27:36,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:27:36,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:27:36,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:27:36,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:27:36,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:27:36,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:27:36,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:27:36,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:27:36,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:27:36,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:27:36,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:27:36,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:27:36,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:27:36,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:27:36,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:27:36,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:27:36,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:27:36,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:27:36,796 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:27:36,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:27:36,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:27:36,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:27:36,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:27:36,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:27:36,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:27:36,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:27:36,799 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:27:36,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:27:36,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:27:36,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:27:36,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:27:36,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:27:36,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:27:36,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:27:36,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:27:36,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:27:36,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:27:36,801 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:27:36,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:27:36,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:27:36,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:27:36,803 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_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 [2021-11-13 18:27:37,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:27:37,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:27:37,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:27:37,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:27:37,118 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:27:37,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-11-13 18:27:37,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/data/272a85355/a9c50e544d95495fb917e5977df16215/FLAGacfab3013 [2021-11-13 18:27:38,130 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:27:38,132 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-11-13 18:27:38,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/data/272a85355/a9c50e544d95495fb917e5977df16215/FLAGacfab3013 [2021-11-13 18:27:38,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/data/272a85355/a9c50e544d95495fb917e5977df16215 [2021-11-13 18:27:38,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:27:38,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:27:38,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:27:38,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:27:38,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:27:38,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:27:38" (1/1) ... [2021-11-13 18:27:38,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7727a01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:38, skipping insertion in model container [2021-11-13 18:27:38,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:27:38" (1/1) ... [2021-11-13 18:27:38,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:27:38,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:27:39,336 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-11-13 18:27:39,337 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-11-13 18:27:39,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-11-13 18:27:41,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:41,996 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:27:42,081 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-11-13 18:27:42,083 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-11-13 18:27:42,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-11-13 18:27:42,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:42,800 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:27:42,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42 WrapperNode [2021-11-13 18:27:42,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:27:42,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:27:42,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:27:42,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:27:42,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:42,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:27:43,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:27:43,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:27:43,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:27:43,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:43,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:27:43,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:27:43,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:27:43,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:27:43,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (1/1) ... [2021-11-13 18:27:44,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:27:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:27:44,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:27:44,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0b8abe-1c75-4a9c-8e0e-affbe6be18b8/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:27:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-13 18:27:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-13 18:27:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-11-13 18:27:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-11-13 18:27:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-11-13 18:27:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-11-13 18:27:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-13 18:27:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:27:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:27:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-11-13 18:27:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-11-13 18:27:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:27:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:27:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:27:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:27:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-11-13 18:27:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-11-13 18:27:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-13 18:27:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-13 18:27:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-13 18:27:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-13 18:27:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-13 18:27:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-13 18:27:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:27:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:27:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-11-13 18:27:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-11-13 18:27:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-11-13 18:27:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-11-13 18:27:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-13 18:27:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-13 18:27:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:27:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:27:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-11-13 18:27:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-11-13 18:27:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:27:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:27:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-11-13 18:27:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-11-13 18:27:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-11-13 18:27:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-11-13 18:27:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-13 18:27:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-13 18:27:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-13 18:27:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-13 18:27:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:27:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:27:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-11-13 18:27:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-11-13 18:27:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:27:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:27:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 18:27:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 18:27:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 18:27:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 18:27:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-11-13 18:27:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-11-13 18:27:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-11-13 18:27:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-11-13 18:27:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-11-13 18:27:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-11-13 18:27:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-11-13 18:27:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-11-13 18:27:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-11-13 18:27:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-11-13 18:27:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:27:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 18:27:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 18:27:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-11-13 18:27:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-11-13 18:27:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-11-13 18:27:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-11-13 18:27:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 18:27:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 18:27:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-13 18:27:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-13 18:27:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:27:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:27:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:27:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-11-13 18:27:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-11-13 18:27:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-13 18:27:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-13 18:27:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-13 18:27:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-13 18:27:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:27:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:27:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-13 18:27:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-13 18:27:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:27:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 18:27:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 18:27:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:27:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-13 18:27:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-13 18:27:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-13 18:27:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-11-13 18:27:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-11-13 18:27:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 18:27:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 18:27:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-11-13 18:27:44,182 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-11-13 18:27:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-11-13 18:27:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-11-13 18:27:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-11-13 18:27:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-11-13 18:27:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-13 18:27:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-13 18:27:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-13 18:27:44,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-13 18:27:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:27:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 18:27:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 18:27:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-13 18:27:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-13 18:27:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-11-13 18:27:44,184 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-11-13 18:27:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:27:44,185 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:27:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-13 18:27:44,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-13 18:27:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:27:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-11-13 18:27:44,185 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-11-13 18:27:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure skd_restart_device [2021-11-13 18:27:44,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_restart_device [2021-11-13 18:27:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:27:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-13 18:27:44,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-13 18:27:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:27:44,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:27:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-11-13 18:27:44,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-11-13 18:27:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:27:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:27:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-11-13 18:27:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-11-13 18:27:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-13 18:27:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-13 18:27:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-13 18:27:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-13 18:27:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-11-13 18:27:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-11-13 18:27:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:27:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:27:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:27:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:27:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:27:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 18:27:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 18:27:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-13 18:27:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-13 18:27:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-11-13 18:27:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-11-13 18:27:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-11-13 18:27:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-11-13 18:27:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:27:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:27:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-11-13 18:27:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-11-13 18:27:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-11-13 18:27:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-11-13 18:27:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-13 18:27:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-13 18:27:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-11-13 18:27:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-11-13 18:27:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-11-13 18:27:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-11-13 18:27:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-11-13 18:27:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-11-13 18:27:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:27:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-13 18:27:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-13 18:27:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-11-13 18:27:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-11-13 18:27:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-13 18:27:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-13 18:27:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:27:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-11-13 18:27:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-11-13 18:27:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 18:27:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-13 18:27:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-13 18:27:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-13 18:27:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-13 18:27:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-13 18:27:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-13 18:27:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-13 18:27:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-13 18:27:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-11-13 18:27:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-11-13 18:27:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 18:27:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 18:27:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-11-13 18:27:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-11-13 18:27:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-11-13 18:27:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-11-13 18:27:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-11-13 18:27:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-11-13 18:27:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 18:27:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 18:27:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:27:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:27:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-11-13 18:27:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-11-13 18:27:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-13 18:27:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-13 18:27:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-11-13 18:27:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-11-13 18:27:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-13 18:27:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-13 18:27:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 18:27:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 18:27:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-13 18:27:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-13 18:27:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 18:27:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 18:27:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-11-13 18:27:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-11-13 18:27:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-13 18:27:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-13 18:27:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:27:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-11-13 18:27:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-11-13 18:27:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-11-13 18:27:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-11-13 18:27:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-13 18:27:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-13 18:27:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:27:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:27:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-13 18:27:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-13 18:27:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-11-13 18:27:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-11-13 18:27:45,953 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:27:46,288 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume __copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,289 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume !__copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#t~switch287#1 := __copy_to_user_nocheck_#t~switch287#1 || 4 == __copy_to_user_nocheck_~size#1; [2021-11-13 18:27:46,289 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467: SUMMARY for call __copy_to_user_nocheck_#t~ret289#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-13 18:27:46,289 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret289#1 && __copy_to_user_nocheck_#t~ret289#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret289#1;havoc __copy_to_user_nocheck_#t~ret289#1; [2021-11-13 18:27:46,289 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455: SUMMARY for call __copy_to_user_nocheck_#t~ret288#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-11-13 18:27:46,289 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret288#1 && __copy_to_user_nocheck_#t~ret288#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret288#1;havoc __copy_to_user_nocheck_#t~ret288#1; [2021-11-13 18:27:46,290 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,290 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#t~switch287#1 := __copy_to_user_nocheck_#t~switch287#1 || 2 == __copy_to_user_nocheck_~size#1; [2021-11-13 18:27:46,290 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume __copy_to_user_nocheck_#t~switch287#1; [2021-11-13 18:27:46,292 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume !__copy_to_user_nocheck_#t~switch287#1; [2021-11-13 18:27:46,293 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435: havoc __copy_to_user_nocheck_#t~switch287#1; [2021-11-13 18:27:46,293 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,293 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,294 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume __copy_to_user_nocheck_#t~switch287#1; [2021-11-13 18:27:46,294 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume !__copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#t~switch287#1 := true; [2021-11-13 18:27:46,295 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,295 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,296 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume __copy_to_user_nocheck_#t~switch287#1; [2021-11-13 18:27:46,300 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume !__copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#t~switch287#1 := __copy_to_user_nocheck_#t~switch287#1 || 16 == __copy_to_user_nocheck_~size#1; [2021-11-13 18:27:46,301 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume __copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,301 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume !__copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#t~switch287#1 := __copy_to_user_nocheck_#t~switch287#1 || 10 == __copy_to_user_nocheck_~size#1; [2021-11-13 18:27:46,301 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477: SUMMARY for call __copy_to_user_nocheck_#t~ret290#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-11-13 18:27:46,301 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume __copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-11-13 18:27:46,301 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume !__copy_to_user_nocheck_#t~switch287#1;__copy_to_user_nocheck_#t~switch287#1 := __copy_to_user_nocheck_#t~switch287#1 || 8 == __copy_to_user_nocheck_~size#1; [2021-11-13 18:27:46,302 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477-1: __copy_to_user_nocheck_~tmp___2~3#1 := __copy_to_user_nocheck_#t~ret290#1;havoc __copy_to_user_nocheck_#t~ret290#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-13 18:27:49,019 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362: havoc __copy_from_user_nocheck_#t~switch281#1; [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387: SUMMARY for call __copy_from_user_nocheck_#t~ret282#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret282#1 && __copy_from_user_nocheck_#t~ret282#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret282#1;havoc __copy_from_user_nocheck_#t~ret282#1; [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume __copy_from_user_nocheck_#t~switch281#1; [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume !__copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#t~switch281#1 := __copy_from_user_nocheck_#t~switch281#1 || 16 == __copy_from_user_nocheck_~size#1; [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret283#1 && __copy_from_user_nocheck_#t~ret283#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret283#1;havoc __copy_from_user_nocheck_#t~ret283#1; [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400: SUMMARY for call __copy_from_user_nocheck_#t~ret283#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-13 18:27:49,020 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume __copy_from_user_nocheck_#t~switch281#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume !__copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#t~switch281#1 := true; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume __copy_from_user_nocheck_#t~switch281#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume !__copy_from_user_nocheck_#t~switch281#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume __copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !__copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#t~switch281#1 := __copy_from_user_nocheck_#t~switch281#1 || 4 == __copy_from_user_nocheck_~size#1; [2021-11-13 18:27:49,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410: SUMMARY for call __copy_from_user_nocheck_#t~ret284#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#t~switch281#1 := __copy_from_user_nocheck_#t~switch281#1 || 2 == __copy_from_user_nocheck_~size#1; [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410-1: __copy_from_user_nocheck_~tmp___2~2#1 := __copy_from_user_nocheck_#t~ret284#1;havoc __copy_from_user_nocheck_#t~ret284#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume __copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume !__copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#t~switch281#1 := __copy_from_user_nocheck_#t~switch281#1 || 8 == __copy_from_user_nocheck_~size#1; [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume __copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-11-13 18:27:49,022 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume !__copy_from_user_nocheck_#t~switch281#1;__copy_from_user_nocheck_#t~switch281#1 := __copy_from_user_nocheck_#t~switch281#1 || 10 == __copy_from_user_nocheck_~size#1; [2021-11-13 18:37:50,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:37:50,618 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:37:50,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:37:50 BoogieIcfgContainer [2021-11-13 18:37:50,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:37:50,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:37:50,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:37:50,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:37:50,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:27:38" (1/3) ... [2021-11-13 18:37:50,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec94fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:37:50, skipping insertion in model container [2021-11-13 18:37:50,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:42" (2/3) ... [2021-11-13 18:37:50,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec94fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:37:50, skipping insertion in model container [2021-11-13 18:37:50,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:37:50" (3/3) ... [2021-11-13 18:37:50,637 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-11-13 18:37:50,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:37:50,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:37:50,721 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:37:50,729 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:37:50,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:37:50,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 2309 states, 1684 states have (on average 1.3640142517814726) internal successors, (2297), 1728 states have internal predecessors, (2297), 516 states have call successors, (516), 108 states have call predecessors, (516), 107 states have return successors, (511), 499 states have call predecessors, (511), 511 states have call successors, (511) [2021-11-13 18:37:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-13 18:37:50,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:50,852 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:50,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:50,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash 799047285, now seen corresponding path program 1 times [2021-11-13 18:37:50,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:50,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111369693] [2021-11-13 18:37:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:50,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:37:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:37:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:37:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:37:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:37:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 18:37:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:37:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-13 18:37:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 18:37:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:37:53,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:53,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111369693] [2021-11-13 18:37:53,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111369693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:53,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:53,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:37:53,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840068874] [2021-11-13 18:37:53,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:53,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:37:53,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:37:53,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:37:53,949 INFO L87 Difference]: Start difference. First operand has 2309 states, 1684 states have (on average 1.3640142517814726) internal successors, (2297), 1728 states have internal predecessors, (2297), 516 states have call successors, (516), 108 states have call predecessors, (516), 107 states have return successors, (511), 499 states have call predecessors, (511), 511 states have call successors, (511) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 18:37:56,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:58,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:05,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:28,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:30,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:38:40,557 INFO L93 Difference]: Finished difference Result 6204 states and 9077 transitions. [2021-11-13 18:38:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:38:40,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2021-11-13 18:38:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:38:40,642 INFO L225 Difference]: With dead ends: 6204 [2021-11-13 18:38:40,643 INFO L226 Difference]: Without dead ends: 3855 [2021-11-13 18:38:40,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:38:40,672 INFO L933 BasicCegarLoop]: 3504 mSDtfsCounter, 3382 mSDsluCounter, 5686 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 1902 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40916.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 9190 SdHoareTripleChecker+Invalid, 5244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 141.89ms SdHoareTripleChecker+Time, 1902 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45520.32ms IncrementalHoareTripleChecker+Time [2021-11-13 18:38:40,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 9190 Invalid, 5244 Unknown, 0 Unchecked, 141.89ms Time], IncrementalHoareTripleChecker [1902 Valid, 3338 Invalid, 4 Unknown, 0 Unchecked, 45520.32ms Time] [2021-11-13 18:38:40,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2021-11-13 18:38:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3536. [2021-11-13 18:38:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2610 states have (on average 1.3689655172413793) internal successors, (3573), 2669 states have internal predecessors, (3573), 749 states have call successors, (749), 177 states have call predecessors, (749), 176 states have return successors, (748), 726 states have call predecessors, (748), 748 states have call successors, (748) [2021-11-13 18:38:41,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5070 transitions. [2021-11-13 18:38:41,217 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5070 transitions. Word has length 78 [2021-11-13 18:38:41,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:38:41,223 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 5070 transitions. [2021-11-13 18:38:41,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-13 18:38:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5070 transitions. [2021-11-13 18:38:41,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-13 18:38:41,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:38:41,252 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:38:41,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:38:41,253 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:38:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:38:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1465883832, now seen corresponding path program 1 times [2021-11-13 18:38:41,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:38:41,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997446567] [2021-11-13 18:38:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:38:41,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:38:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:38:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:38:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:38:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:38:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-13 18:38:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:38:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:38:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:38:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:38:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-13 18:38:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:38:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 18:38:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 18:38:43,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:38:43,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997446567] [2021-11-13 18:38:43,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997446567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:38:43,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:38:43,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:38:43,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391508173] [2021-11-13 18:38:43,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:38:43,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:38:43,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:38:43,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:38:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:38:43,874 INFO L87 Difference]: Start difference. First operand 3536 states and 5070 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:38:46,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:50,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:53,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:55,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:00,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:03,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:34,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:36,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:38,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:40,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:54,601 INFO L93 Difference]: Finished difference Result 10245 states and 14911 transitions. [2021-11-13 18:39:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:39:54,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2021-11-13 18:39:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:54,687 INFO L225 Difference]: With dead ends: 10245 [2021-11-13 18:39:54,688 INFO L226 Difference]: Without dead ends: 6728 [2021-11-13 18:39:54,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:39:54,718 INFO L933 BasicCegarLoop]: 4041 mSDtfsCounter, 5439 mSDsluCounter, 5876 mSDsCounter, 0 mSdLazyCounter, 6733 mSolverCounterSat, 3531 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61654.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5862 SdHoareTripleChecker+Valid, 9917 SdHoareTripleChecker+Invalid, 10270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 157.66ms SdHoareTripleChecker+Time, 3531 IncrementalHoareTripleChecker+Valid, 6733 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69281.28ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:54,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5862 Valid, 9917 Invalid, 10270 Unknown, 0 Unchecked, 157.66ms Time], IncrementalHoareTripleChecker [3531 Valid, 6733 Invalid, 6 Unknown, 0 Unchecked, 69281.28ms Time] [2021-11-13 18:39:54,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6728 states. [2021-11-13 18:39:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6728 to 6101. [2021-11-13 18:39:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3683389074693422) internal successors, (6137), 4602 states have internal predecessors, (6137), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-11-13 18:39:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8732 transitions. [2021-11-13 18:39:55,277 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8732 transitions. Word has length 119 [2021-11-13 18:39:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:55,280 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8732 transitions. [2021-11-13 18:39:55,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:39:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8732 transitions. [2021-11-13 18:39:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-13 18:39:55,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:55,307 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:55,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:39:55,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:55,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1870804088, now seen corresponding path program 1 times [2021-11-13 18:39:55,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:55,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531025927] [2021-11-13 18:39:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:55,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:39:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:39:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:39:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:39:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:39:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:39:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:39:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:39:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:39:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:39:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 18:39:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:57,922 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-13 18:39:57,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:57,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531025927] [2021-11-13 18:39:57,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531025927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:57,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:57,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:39:57,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507250304] [2021-11-13 18:39:57,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:57,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:39:57,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:39:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:39:57,928 INFO L87 Difference]: Start difference. First operand 6101 states and 8732 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:40:00,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:03,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:04,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:09,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:23,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:29,829 INFO L93 Difference]: Finished difference Result 12789 states and 18540 transitions. [2021-11-13 18:40:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:40:29,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2021-11-13 18:40:29,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:29,907 INFO L225 Difference]: With dead ends: 12789 [2021-11-13 18:40:29,907 INFO L226 Difference]: Without dead ends: 6711 [2021-11-13 18:40:29,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:40:29,951 INFO L933 BasicCegarLoop]: 3133 mSDtfsCounter, 3992 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 1439 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27462.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 5873 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.76ms SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31312.43ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:29,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4365 Valid, 5873 Invalid, 3606 Unknown, 0 Unchecked, 51.76ms Time], IncrementalHoareTripleChecker [1439 Valid, 2165 Invalid, 2 Unknown, 0 Unchecked, 31312.43ms Time] [2021-11-13 18:40:29,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2021-11-13 18:40:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6101. [2021-11-13 18:40:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3674470457079153) internal successors, (6133), 4602 states have internal predecessors, (6133), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-11-13 18:40:30,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8728 transitions. [2021-11-13 18:40:30,544 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8728 transitions. Word has length 116 [2021-11-13 18:40:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:30,545 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8728 transitions. [2021-11-13 18:40:30,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:40:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8728 transitions. [2021-11-13 18:40:30,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-13 18:40:30,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:30,560 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:30,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:40:30,561 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:30,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:30,562 INFO L85 PathProgramCache]: Analyzing trace with hash -983581242, now seen corresponding path program 1 times [2021-11-13 18:40:30,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:30,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15406053] [2021-11-13 18:40:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:30,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:40:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:40:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:40:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:40:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:40:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:40:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:40:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:40:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:40:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:40:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 18:40:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-13 18:40:33,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:33,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15406053] [2021-11-13 18:40:33,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15406053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:33,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:33,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:40:33,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182751322] [2021-11-13 18:40:33,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:33,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:40:33,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:40:33,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:40:33,241 INFO L87 Difference]: Start difference. First operand 6101 states and 8728 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:40:35,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:38,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:44,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:59,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:05,532 INFO L93 Difference]: Finished difference Result 12789 states and 18532 transitions. [2021-11-13 18:41:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:41:05,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2021-11-13 18:41:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:05,606 INFO L225 Difference]: With dead ends: 12789 [2021-11-13 18:41:05,607 INFO L226 Difference]: Without dead ends: 6711 [2021-11-13 18:41:05,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:41:05,643 INFO L933 BasicCegarLoop]: 3118 mSDtfsCounter, 3991 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1440 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28162.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4375 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 3599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.20ms SdHoareTripleChecker+Time, 1440 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31696.89ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:05,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4375 Valid, 5832 Invalid, 3599 Unknown, 0 Unchecked, 48.20ms Time], IncrementalHoareTripleChecker [1440 Valid, 2155 Invalid, 4 Unknown, 0 Unchecked, 31696.89ms Time] [2021-11-13 18:41:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2021-11-13 18:41:06,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6101. [2021-11-13 18:41:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3665551839464882) internal successors, (6129), 4602 states have internal predecessors, (6129), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-11-13 18:41:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8724 transitions. [2021-11-13 18:41:06,228 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8724 transitions. Word has length 116 [2021-11-13 18:41:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:06,232 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8724 transitions. [2021-11-13 18:41:06,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:41:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8724 transitions. [2021-11-13 18:41:06,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-13 18:41:06,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:06,246 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:41:06,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:41:06,246 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1400343496, now seen corresponding path program 1 times [2021-11-13 18:41:06,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:06,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024769360] [2021-11-13 18:41:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:06,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:41:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-13 18:41:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:41:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 18:41:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:41:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:41:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:41:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:41:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-13 18:41:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-13 18:41:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 18:41:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-13 18:41:08,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:08,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024769360] [2021-11-13 18:41:08,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024769360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:08,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:08,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:41:08,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297565843] [2021-11-13 18:41:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:08,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:41:08,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:08,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:41:08,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:41:08,855 INFO L87 Difference]: Start difference. First operand 6101 states and 8724 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:41:11,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []