./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ --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 f2c7848ca043d8b9ca4f9ab4b1ce08f583c2bd8d8967a557df683af547558d91 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:10:16,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:10:16,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:10:16,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:10:16,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:10:16,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:10:16,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:10:16,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:10:16,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:10:16,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:10:16,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:10:16,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:10:16,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:10:16,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:10:16,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:10:16,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:10:16,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:10:16,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:10:16,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:10:16,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:10:16,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:10:16,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:10:16,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:10:16,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:10:16,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:10:16,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:10:16,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:10:16,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:10:16,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:10:16,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:10:16,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:10:16,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:10:16,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:10:16,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:10:16,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:10:16,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:10:16,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:10:16,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:10:16,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:10:16,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:10:16,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:10:16,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:10:16,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:10:16,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:10:16,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:10:16,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:10:16,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:10:16,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:10:16,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:10:16,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:10:16,886 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:10:16,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:10:16,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:10:16,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:10:16,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:10:16,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:10:16,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:10:16,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:10:16,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:10:16,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:10:16,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:10:16,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:10:16,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:10:16,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:10:16,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:10:16,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:10:16,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:10:16,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:10:16,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:10:16,893 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:10:16,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:10:16,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:10:16,894 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_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2c7848ca043d8b9ca4f9ab4b1ce08f583c2bd8d8967a557df683af547558d91 [2022-10-17 10:10:17,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:10:17,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:10:17,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:10:17,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:10:17,259 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:10:17,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-10-17 10:10:17,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/data/9c7712e9e/d8de37606728477abf87d62b2f5e52d2/FLAG1d03941a5 [2022-10-17 10:10:18,187 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:10:18,188 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-10-17 10:10:18,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/data/9c7712e9e/d8de37606728477abf87d62b2f5e52d2/FLAG1d03941a5 [2022-10-17 10:10:18,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/data/9c7712e9e/d8de37606728477abf87d62b2f5e52d2 [2022-10-17 10:10:18,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:10:18,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:10:18,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:10:18,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:10:18,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:10:18,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:10:18" (1/1) ... [2022-10-17 10:10:18,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd10dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:18, skipping insertion in model container [2022-10-17 10:10:18,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:10:18" (1/1) ... [2022-10-17 10:10:18,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:10:18,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:10:19,364 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-10-17 10:10:19,364 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-10-17 10:10:19,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-10-17 10:10:20,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:10:21,005 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:10:21,109 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-10-17 10:10:21,109 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-10-17 10:10:21,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-10-17 10:10:21,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:10:21,525 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:10:21,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21 WrapperNode [2022-10-17 10:10:21,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:10:21,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:10:21,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:10:21,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:10:21,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:21,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:21,911 INFO L138 Inliner]: procedures = 199, calls = 1517, calls flagged for inlining = 95, calls inlined = 93, statements flattened = 3890 [2022-10-17 10:10:21,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:10:21,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:10:21,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:10:21,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:10:21,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:21,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:21,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:21,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:22,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:22,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:22,175 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:22,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:22,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:10:22,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:10:22,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:10:22,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:10:22,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (1/1) ... [2022-10-17 10:10:22,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:10:22,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:10:22,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:10:22,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c16a64b-3cea-415b-9bfa-fe0df2c06202/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:10:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2022-10-17 10:10:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2022-10-17 10:10:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2022-10-17 10:10:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2022-10-17 10:10:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-17 10:10:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-17 10:10:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:10:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:10:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:10:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:10:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2022-10-17 10:10:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2022-10-17 10:10:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 10:10:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 10:10:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2022-10-17 10:10:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2022-10-17 10:10:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-10-17 10:10:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-10-17 10:10:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:10:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:10:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-10-17 10:10:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-10-17 10:10:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-10-17 10:10:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-10-17 10:10:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2022-10-17 10:10:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2022-10-17 10:10:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-10-17 10:10:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-10-17 10:10:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2022-10-17 10:10:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2022-10-17 10:10:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-10-17 10:10:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-10-17 10:10:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 10:10:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 10:10:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2022-10-17 10:10:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2022-10-17 10:10:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:10:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:10:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:10:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:10:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2022-10-17 10:10:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2022-10-17 10:10:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:10:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:10:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2022-10-17 10:10:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2022-10-17 10:10:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2022-10-17 10:10:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2022-10-17 10:10:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:10:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:10:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-10-17 10:10:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-10-17 10:10:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2022-10-17 10:10:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2022-10-17 10:10:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2022-10-17 10:10:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2022-10-17 10:10:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-17 10:10:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-17 10:10:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2022-10-17 10:10:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2022-10-17 10:10:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:10:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:10:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:10:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:10:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 10:10:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 10:10:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-17 10:10:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-17 10:10:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-17 10:10:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-17 10:10:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 10:10:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 10:10:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2022-10-17 10:10:22,318 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2022-10-17 10:10:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:10:22,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:10:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:10:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2022-10-17 10:10:22,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2022-10-17 10:10:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:10:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:10:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 10:10:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 10:10:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2022-10-17 10:10:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2022-10-17 10:10:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:10:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:10:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2022-10-17 10:10:22,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2022-10-17 10:10:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2022-10-17 10:10:22,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2022-10-17 10:10:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2022-10-17 10:10:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2022-10-17 10:10:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2022-10-17 10:10:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2022-10-17 10:10:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:10:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:10:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:10:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-17 10:10:22,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-17 10:10:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-10-17 10:10:22,322 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-10-17 10:10:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:10:22,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:10:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2022-10-17 10:10:22,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2022-10-17 10:10:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:10:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2022-10-17 10:10:22,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2022-10-17 10:10:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2022-10-17 10:10:22,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2022-10-17 10:10:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:10:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-10-17 10:10:22,324 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-10-17 10:10:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 10:10:22,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 10:10:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:10:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:10:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-17 10:10:22,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-17 10:10:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-17 10:10:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-17 10:10:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-17 10:10:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-17 10:10:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2022-10-17 10:10:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2022-10-17 10:10:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2022-10-17 10:10:22,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2022-10-17 10:10:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:10:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-10-17 10:10:22,327 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-10-17 10:10:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2022-10-17 10:10:22,327 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2022-10-17 10:10:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:10:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:10:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-10-17 10:10:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-10-17 10:10:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:10:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:10:22,963 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:10:22,967 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:10:23,801 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:10:36,991 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:10:37,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:10:37,019 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:10:37,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:10:37 BoogieIcfgContainer [2022-10-17 10:10:37,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:10:37,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:10:37,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:10:37,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:10:37,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:10:18" (1/3) ... [2022-10-17 10:10:37,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8229ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:10:37, skipping insertion in model container [2022-10-17 10:10:37,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:21" (2/3) ... [2022-10-17 10:10:37,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8229ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:10:37, skipping insertion in model container [2022-10-17 10:10:37,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:10:37" (3/3) ... [2022-10-17 10:10:37,041 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-10-17 10:10:37,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:10:37,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:10:37,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:10:37,176 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69f9ddf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:10:37,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:10:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 1364 states, 973 states have (on average 1.433710174717369) internal successors, (1395), 1004 states have internal predecessors, (1395), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) [2022-10-17 10:10:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-10-17 10:10:37,245 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:10:37,247 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:10:37,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:10:37,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:10:37,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1655239035, now seen corresponding path program 1 times [2022-10-17 10:10:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:10:37,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955248606] [2022-10-17 10:10:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:10:37,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:10:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:10:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:10:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:10:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:10:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-17 10:10:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-17 10:10:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:10:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:10:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:10:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:10:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:10:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:10:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 10:10:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:10:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:10:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:10:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 10:10:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-17 10:10:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 10:10:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-10-17 10:10:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-17 10:10:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-17 10:10:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-17 10:10:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:10:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:10:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-17 10:10:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-10-17 10:10:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:10:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955248606] [2022-10-17 10:10:38,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955248606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:10:38,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:10:38,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:10:38,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302520164] [2022-10-17 10:10:38,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:10:38,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:10:38,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:10:38,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:10:38,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:10:38,544 INFO L87 Difference]: Start difference. First operand has 1364 states, 973 states have (on average 1.433710174717369) internal successors, (1395), 1004 states have internal predecessors, (1395), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-17 10:10:41,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:10:46,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:10:46,127 INFO L93 Difference]: Finished difference Result 3992 states and 6172 transitions. [2022-10-17 10:10:46,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:10:46,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 189 [2022-10-17 10:10:46,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:10:46,175 INFO L225 Difference]: With dead ends: 3992 [2022-10-17 10:10:46,175 INFO L226 Difference]: Without dead ends: 2592 [2022-10-17 10:10:46,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:10:46,196 INFO L413 NwaCegarLoop]: 2114 mSDtfsCounter, 2054 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 821 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 4366 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:10:46,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 4366 Invalid, 2421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [821 Valid, 1599 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-10-17 10:10:46,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-10-17 10:10:46,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 2426. [2022-10-17 10:10:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1745 states have (on average 1.4) internal successors, (2443), 1785 states have internal predecessors, (2443), 568 states have call successors, (568), 113 states have call predecessors, (568), 112 states have return successors, (567), 563 states have call predecessors, (567), 567 states have call successors, (567) [2022-10-17 10:10:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3578 transitions. [2022-10-17 10:10:46,541 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3578 transitions. Word has length 189 [2022-10-17 10:10:46,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:10:46,542 INFO L495 AbstractCegarLoop]: Abstraction has 2426 states and 3578 transitions. [2022-10-17 10:10:46,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-17 10:10:46,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3578 transitions. [2022-10-17 10:10:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-10-17 10:10:46,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:10:46,575 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:10:46,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:10:46,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:10:46,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:10:46,576 INFO L85 PathProgramCache]: Analyzing trace with hash -48267231, now seen corresponding path program 1 times [2022-10-17 10:10:46,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:10:46,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281844826] [2022-10-17 10:10:46,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:10:46,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:10:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:10:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:10:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:10:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:10:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:10:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-17 10:10:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:10:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-17 10:10:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:10:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:10:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:10:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:10:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 10:10:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-17 10:10:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-17 10:10:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-17 10:10:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-17 10:10:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 10:10:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 10:10:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-17 10:10:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-17 10:10:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:10:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:10:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-10-17 10:10:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-10-17 10:10:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-10-17 10:10:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-17 10:10:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-10-17 10:10:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-17 10:10:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-10-17 10:10:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:10:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:10:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-10-17 10:10:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-10-17 10:10:47,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:10:47,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281844826] [2022-10-17 10:10:47,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281844826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:10:47,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:10:47,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:10:47,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795115532] [2022-10-17 10:10:47,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:10:47,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:10:47,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:10:47,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:10:47,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:10:47,498 INFO L87 Difference]: Start difference. First operand 2426 states and 3578 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)