./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--serial--8250--8250.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:48:41,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:48:41,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:48:41,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:48:41,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:48:41,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:48:41,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:48:41,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:48:41,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:48:41,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:48:41,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:48:41,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:48:41,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:48:41,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:48:41,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:48:41,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:48:41,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:48:41,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:48:41,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:48:41,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:48:41,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:48:41,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:48:41,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:48:41,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:48:42,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:48:42,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:48:42,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:48:42,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:48:42,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:48:42,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:48:42,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:48:42,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:48:42,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:48:42,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:48:42,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:48:42,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:48:42,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:48:42,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:48:42,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:48:42,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:48:42,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:48:42,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:48:42,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:48:42,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:48:42,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:48:42,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:48:42,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:48:42,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:48:42,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:48:42,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:48:42,061 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:48:42,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:48:42,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:48:42,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:48:42,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:48:42,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:48:42,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:48:42,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:48:42,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:48:42,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:48:42,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:48:42,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:48:42,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:48:42,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:48:42,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:48:42,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:48:42,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:48:42,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:48:42,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:48:42,067 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:48:42,067 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:48:42,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:48:42,068 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_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc [2022-11-18 18:48:42,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:48:42,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:48:42,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:48:42,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:48:42,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:48:42,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2022-11-18 18:48:42,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/data/e9756c47f/fe4c4316de8c4f92a2970b7f8a0a4e02/FLAGda797894a [2022-11-18 18:48:43,437 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:48:43,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2022-11-18 18:48:43,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/data/e9756c47f/fe4c4316de8c4f92a2970b7f8a0a4e02/FLAGda797894a [2022-11-18 18:48:43,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/data/e9756c47f/fe4c4316de8c4f92a2970b7f8a0a4e02 [2022-11-18 18:48:43,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:48:43,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:48:43,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:48:43,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:48:43,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:48:43,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:48:43" (1/1) ... [2022-11-18 18:48:43,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27438b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:43, skipping insertion in model container [2022-11-18 18:48:43,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:48:43" (1/1) ... [2022-11-18 18:48:43,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:48:43,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:48:44,496 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2022-11-18 18:48:44,497 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2022-11-18 18:48:44,989 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2022-11-18 18:48:46,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:48:46,705 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:48:46,833 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2022-11-18 18:48:46,834 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2022-11-18 18:48:46,852 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2022-11-18 18:48:47,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:48:47,447 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:48:47,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47 WrapperNode [2022-11-18 18:48:47,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:48:47,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:48:47,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:48:47,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:48:47,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:47,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:47,890 INFO L138 Inliner]: procedures = 349, calls = 4543, calls flagged for inlining = 165, calls inlined = 163, statements flattened = 8158 [2022-11-18 18:48:47,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:48:47,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:48:47,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:48:47,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:48:47,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:47,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:47,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:47,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:48,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:48,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:48,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:48,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:48,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:48:48,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:48:48,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:48:48,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:48:48,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (1/1) ... [2022-11-18 18:48:48,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:48:48,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:48:48,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:48:48,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:48:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_chars [2022-11-18 18:48:48,486 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_chars [2022-11-18 18:48:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure uart_poll_timeout [2022-11-18 18:48:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_poll_timeout [2022-11-18 18:48:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2022-11-18 18:48:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2022-11-18 18:48:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_chars [2022-11-18 18:48:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_chars [2022-11-18 18:48:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out_sync [2022-11-18 18:48:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out_sync [2022-11-18 18:48:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_pm [2022-11-18 18:48:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_pm [2022-11-18 18:48:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_write [2022-11-18 18:48:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_write [2022-11-18 18:48:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_read_divisor_id [2022-11-18 18:48:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_read_divisor_id [2022-11-18 18:48:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:48:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:48:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_mctrl [2022-11-18 18:48:48,489 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_mctrl [2022-11-18 18:48:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 18:48:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 18:48:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2022-11-18 18:48:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2022-11-18 18:48:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_port [2022-11-18 18:48:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_port [2022-11-18 18:48:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:48:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:48:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_tx [2022-11-18 18:48:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_tx [2022-11-18 18:48:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure uart_unregister_driver [2022-11-18 18:48:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_unregister_driver [2022-11-18 18:48:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-18 18:48:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-18 18:48:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_prep_slave_single [2022-11-18 18:48:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_prep_slave_single [2022-11-18 18:48:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-11-18 18:48:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-11-18 18:48:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_device_control [2022-11-18 18:48:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_device_control [2022-11-18 18:48:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 18:48:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 18:48:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_5 [2022-11-18 18:48:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_5 [2022-11-18 18:48:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:48:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:48:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_start_tx [2022-11-18 18:48:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_start_tx [2022-11-18 18:48:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 18:48:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 18:48:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:48:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:48:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_16550a [2022-11-18 18:48:48,497 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_16550a [2022-11-18 18:48:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:48:48,498 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:48:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_tx_complete [2022-11-18 18:48:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_tx_complete [2022-11-18 18:48:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-18 18:48:48,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-18 18:48:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure dma_release_channel [2022-11-18 18:48:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_release_channel [2022-11-18 18:48:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure check_name [2022-11-18 18:48:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure check_name [2022-11-18 18:48:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:48:48,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:48:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure serial_in [2022-11-18 18:48:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_in [2022-11-18 18:48:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_handle_irq [2022-11-18 18:48:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_handle_irq [2022-11-18 18:48:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:48:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure broken_efr [2022-11-18 18:48:48,502 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_efr [2022-11-18 18:48:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_submit [2022-11-18 18:48:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_submit [2022-11-18 18:48:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_modem_status [2022-11-18 18:48:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_modem_status [2022-11-18 18:48:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_startup [2022-11-18 18:48:48,503 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_startup [2022-11-18 18:48:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:48:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:48:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pnp_exit [2022-11-18 18:48:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pnp_exit [2022-11-18 18:48:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure uart_suspend_port [2022-11-18 18:48:48,504 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_suspend_port [2022-11-18 18:48:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:48:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_ldisc [2022-11-18 18:48:48,505 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_ldisc [2022-11-18 18:48:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure uart_add_one_port [2022-11-18 18:48:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_add_one_port [2022-11-18 18:48:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_port_size [2022-11-18 18:48:48,506 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_port_size [2022-11-18 18:48:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 18:48:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 18:48:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 18:48:48,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 18:48:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-18 18:48:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_dma [2022-11-18 18:48:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_dma [2022-11-18 18:48:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_put_poll_char [2022-11-18 18:48:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_put_poll_char [2022-11-18 18:48:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_dma [2022-11-18 18:48:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_dma [2022-11-18 18:48:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:48:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_empty [2022-11-18 18:48:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_empty [2022-11-18 18:48:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:48:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out [2022-11-18 18:48:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out [2022-11-18 18:48:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure disable_rsa [2022-11-18 18:48:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_rsa [2022-11-18 18:48:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_clear_fifos [2022-11-18 18:48:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_clear_fifos [2022-11-18 18:48:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure serial_out [2022-11-18 18:48:48,512 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_out [2022-11-18 18:48:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_write [2022-11-18 18:48:48,514 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_write [2022-11-18 18:48:48,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 18:48:48,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 18:48:48,515 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-18 18:48:48,517 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-18 18:48:48,518 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_poll_char [2022-11-18 18:48:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_poll_char [2022-11-18 18:48:48,518 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_probe [2022-11-18 18:48:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_probe [2022-11-18 18:48:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure serial_do_unlink [2022-11-18 18:48:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_do_unlink [2022-11-18 18:48:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_termios [2022-11-18 18:48:48,526 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_termios [2022-11-18 18:48:48,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 18:48:48,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 18:48:48,526 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_unregister_port [2022-11-18 18:48:48,526 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_unregister_port [2022-11-18 18:48:48,526 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_rx [2022-11-18 18:48:48,526 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_rx [2022-11-18 18:48:48,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 18:48:48,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 18:48:48,527 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_rsa_resource [2022-11-18 18:48:48,527 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_rsa_resource [2022-11-18 18:48:48,527 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 18:48:48,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 18:48:48,527 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_isa_init_ports [2022-11-18 18:48:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_isa_init_ports [2022-11-18 18:48:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:48:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:48:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-18 18:48:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-18 18:48:48,528 INFO L130 BoogieDeclarations]: Found specification of procedure is_omap1_8250 [2022-11-18 18:48:48,528 INFO L138 BoogieDeclarations]: Found implementation of procedure is_omap1_8250 [2022-11-18 18:48:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-11-18 18:48:48,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-11-18 18:48:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_verify_port [2022-11-18 18:48:48,529 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_verify_port [2022-11-18 18:48:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-18 18:48:48,529 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-18 18:48:48,529 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-11-18 18:48:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-11-18 18:48:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-11-18 18:48:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-11-18 18:48:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure set_io_from_upio [2022-11-18 18:48:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure set_io_from_upio [2022-11-18 18:48:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-11-18 18:48:48,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-11-18 18:48:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-18 18:48:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-18 18:48:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure uart_remove_one_port [2022-11-18 18:48:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_remove_one_port [2022-11-18 18:48:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:48:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_suspend_port [2022-11-18 18:48:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_suspend_port [2022-11-18 18:48:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_dma [2022-11-18 18:48:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_dma [2022-11-18 18:48:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 18:48:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 18:48:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_mctrl [2022-11-18 18:48:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_mctrl [2022-11-18 18:48:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2022-11-18 18:48:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2022-11-18 18:48:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_rsa_resource [2022-11-18 18:48:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_rsa_resource [2022-11-18 18:48:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_request_slave_channel_compat [2022-11-18 18:48:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_request_slave_channel_compat [2022-11-18 18:48:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_std_resource [2022-11-18 18:48:48,533 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_std_resource [2022-11-18 18:48:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_tx_status [2022-11-18 18:48:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_tx_status [2022-11-18 18:48:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-18 18:48:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-18 18:48:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_in [2022-11-18 18:48:48,535 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_in [2022-11-18 18:48:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:48:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_type [2022-11-18 18:48:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_type [2022-11-18 18:48:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_register_8250_port [2022-11-18 18:48:48,536 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_register_8250_port [2022-11-18 18:48:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure uart_write_wakeup [2022-11-18 18:48:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_write_wakeup [2022-11-18 18:48:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 18:48:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 18:48:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:48:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:48:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_read [2022-11-18 18:48:48,537 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_read [2022-11-18 18:48:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_break_ctl [2022-11-18 18:48:48,538 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_break_ctl [2022-11-18 18:48:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:48:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pm [2022-11-18 18:48:48,538 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pm [2022-11-18 18:48:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-18 18:48:48,538 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-18 18:48:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_set_termios [2022-11-18 18:48:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_set_termios [2022-11-18 18:48:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:48:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure uart_tx_stopped [2022-11-18 18:48:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_tx_stopped [2022-11-18 18:48:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_xmitr [2022-11-18 18:48:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_xmitr [2022-11-18 18:48:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig [2022-11-18 18:48:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig [2022-11-18 18:48:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_read [2022-11-18 18:48:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_read [2022-11-18 18:48:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 18:48:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 18:48:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:48:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 18:48:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 18:48:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-18 18:48:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-18 18:48:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:48:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:48:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 18:48:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 18:48:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_remove [2022-11-18 18:48:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_remove [2022-11-18 18:48:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-18 18:48:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-18 18:48:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure uart_handle_break [2022-11-18 18:48:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_handle_break [2022-11-18 18:48:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 18:48:48,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 18:48:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure serial_index [2022-11-18 18:48:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_index [2022-11-18 18:48:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_rx_complete [2022-11-18 18:48:48,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_rx_complete [2022-11-18 18:48:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure dma_async_issue_pending [2022-11-18 18:48:48,548 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_async_issue_pending [2022-11-18 18:48:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure __stop_tx [2022-11-18 18:48:48,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __stop_tx [2022-11-18 18:48:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2022-11-18 18:48:48,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2022-11-18 18:48:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_config_port [2022-11-18 18:48:48,549 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_config_port [2022-11-18 18:48:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-18 18:48:48,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-18 18:48:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 18:48:48,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 18:48:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume [2022-11-18 18:48:48,550 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume [2022-11-18 18:48:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_shutdown [2022-11-18 18:48:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_shutdown [2022-11-18 18:48:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:48:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 18:48:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_has_efr [2022-11-18 18:48:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_has_efr [2022-11-18 18:48:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure __enable_rsa [2022-11-18 18:48:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __enable_rsa [2022-11-18 18:48:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_resume [2022-11-18 18:48:48,552 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_resume [2022-11-18 18:48:48,552 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_std_resource [2022-11-18 18:48:48,552 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_std_resource [2022-11-18 18:48:48,552 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-18 18:48:48,552 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-18 18:48:48,552 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_slave_config [2022-11-18 18:48:48,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_slave_config [2022-11-18 18:48:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_dma [2022-11-18 18:48:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_dma [2022-11-18 18:48:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 18:48:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 18:48:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-18 18:48:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-18 18:48:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume_port [2022-11-18 18:48:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume_port [2022-11-18 18:48:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure ns16550a_goto_highspeed [2022-11-18 18:48:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ns16550a_goto_highspeed [2022-11-18 18:48:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure size_fifo [2022-11-18 18:48:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure size_fifo [2022-11-18 18:48:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_drvdata [2022-11-18 18:48:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_drvdata [2022-11-18 18:48:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_remove [2022-11-18 18:48:48,555 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_remove [2022-11-18 18:48:48,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:48:48,555 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_port [2022-11-18 18:48:48,555 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_port [2022-11-18 18:48:48,555 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-18 18:48:48,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-18 18:48:48,555 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_enable_ms [2022-11-18 18:48:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_enable_ms [2022-11-18 18:48:48,556 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_terminate_all [2022-11-18 18:48:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_terminate_all [2022-11-18 18:48:48,556 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2022-11-18 18:48:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2022-11-18 18:48:48,556 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_sleep [2022-11-18 18:48:48,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_sleep [2022-11-18 18:48:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_init_fixed_type_port [2022-11-18 18:48:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_init_fixed_type_port [2022-11-18 18:48:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:48:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:48:48,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2022-11-18 18:48:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2022-11-18 18:48:49,680 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:48:49,684 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:48:51,074 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:49:13,683 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:49:13,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:49:13,718 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:49:13,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:13 BoogieIcfgContainer [2022-11-18 18:49:13,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:49:13,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:49:13,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:49:13,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:49:13,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:48:43" (1/3) ... [2022-11-18 18:49:13,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5409f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:13, skipping insertion in model container [2022-11-18 18:49:13,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:48:47" (2/3) ... [2022-11-18 18:49:13,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5409f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:49:13, skipping insertion in model container [2022-11-18 18:49:13,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:49:13" (3/3) ... [2022-11-18 18:49:13,738 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2022-11-18 18:49:13,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:49:13,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:49:13,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:49:13,951 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;@40162eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:49:13,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:49:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 2677 states, 1841 states have (on average 1.3867463335143944) internal successors, (2553), 1934 states have internal predecessors, (2553), 687 states have call successors, (687), 148 states have call predecessors, (687), 147 states have return successors, (680), 651 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-18 18:49:14,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-18 18:49:14,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:14,033 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:14,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:49:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash 730978225, now seen corresponding path program 1 times [2022-11-18 18:49:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:14,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017682043] [2022-11-18 18:49:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:49:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:49:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:49:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:49:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:49:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:49:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:49:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 18:49:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:49:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 18:49:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:49:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 18:49:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:49:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:49:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-18 18:49:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-18 18:49:16,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:16,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017682043] [2022-11-18 18:49:16,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017682043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:16,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:16,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:49:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607108251] [2022-11-18 18:49:16,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:16,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:49:16,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:16,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:49:16,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:49:16,331 INFO L87 Difference]: Start difference. First operand has 2677 states, 1841 states have (on average 1.3867463335143944) internal successors, (2553), 1934 states have internal predecessors, (2553), 687 states have call successors, (687), 148 states have call predecessors, (687), 147 states have return successors, (680), 651 states have call predecessors, (680), 680 states have call successors, (680) Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:49:23,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:25,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:27,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:30,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:39,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:42,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:44,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:46,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:50,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:52,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:54,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:49:58,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:00,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:03,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:10,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:13,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:15,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:18,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:20,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:22,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:24,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:27,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:29,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:50:31,460 INFO L93 Difference]: Finished difference Result 8420 states and 13244 transitions. [2022-11-18 18:50:31,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:50:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 162 [2022-11-18 18:50:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:50:31,558 INFO L225 Difference]: With dead ends: 8420 [2022-11-18 18:50:31,558 INFO L226 Difference]: Without dead ends: 5693 [2022-11-18 18:50:31,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:50:31,599 INFO L413 NwaCegarLoop]: 3806 mSDtfsCounter, 4901 mSDsluCounter, 7474 mSDsCounter, 0 mSdLazyCounter, 8467 mSolverCounterSat, 2009 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 11280 SdHoareTripleChecker+Invalid, 10493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2009 IncrementalHoareTripleChecker+Valid, 8467 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:50:31,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5342 Valid, 11280 Invalid, 10493 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2009 Valid, 8467 Invalid, 17 Unknown, 0 Unchecked, 73.6s Time] [2022-11-18 18:50:31,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2022-11-18 18:50:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 4519. [2022-11-18 18:50:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4519 states, 3153 states have (on average 1.3561687281953696) internal successors, (4276), 3288 states have internal predecessors, (4276), 1093 states have call successors, (1093), 271 states have call predecessors, (1093), 272 states have return successors, (1100), 1048 states have call predecessors, (1100), 1092 states have call successors, (1100) [2022-11-18 18:50:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4519 states to 4519 states and 6469 transitions. [2022-11-18 18:50:32,295 INFO L78 Accepts]: Start accepts. Automaton has 4519 states and 6469 transitions. Word has length 162 [2022-11-18 18:50:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:50:32,298 INFO L495 AbstractCegarLoop]: Abstraction has 4519 states and 6469 transitions. [2022-11-18 18:50:32,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:50:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4519 states and 6469 transitions. [2022-11-18 18:50:32,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-18 18:50:32,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:50:32,335 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:32,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:50:32,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:50:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash -520639794, now seen corresponding path program 1 times [2022-11-18 18:50:32,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:32,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458505193] [2022-11-18 18:50:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:32,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:50:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:36,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:50:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:50:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:50:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:36,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 18:50:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 18:50:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:50:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:50:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:50:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 18:50:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:50:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 18:50:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:50:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:50:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-18 18:50:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:38,928 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-18 18:50:38,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:38,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458505193] [2022-11-18 18:50:38,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458505193] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:50:38,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101259470] [2022-11-18 18:50:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:50:38,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:38,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:50:38,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:50:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:41,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 7589 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 18:50:41,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:50:41,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-18 18:50:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-18 18:50:41,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:50:41,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101259470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:41,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:50:41,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2022-11-18 18:50:41,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838932228] [2022-11-18 18:50:41,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:41,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:50:41,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:41,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:50:41,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:50:41,683 INFO L87 Difference]: Start difference. First operand 4519 states and 6469 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:50:45,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:47,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:50,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:52,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:54,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:56,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:50:59,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:01,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:03,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:05,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:07,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:09,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:12,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:14,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:14,576 INFO L93 Difference]: Finished difference Result 9035 states and 12979 transitions. [2022-11-18 18:51:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:51:14,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 165 [2022-11-18 18:51:14,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:14,605 INFO L225 Difference]: With dead ends: 9035 [2022-11-18 18:51:14,605 INFO L226 Difference]: Without dead ends: 4527 [2022-11-18 18:51:14,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:51:14,623 INFO L413 NwaCegarLoop]: 3845 mSDtfsCounter, 1 mSDsluCounter, 10684 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 0 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14529 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:14,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14529 Invalid, 873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 859 Invalid, 14 Unknown, 0 Unchecked, 32.3s Time] [2022-11-18 18:51:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2022-11-18 18:51:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4527. [2022-11-18 18:51:14,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4527 states, 3161 states have (on average 1.3559000316355583) internal successors, (4286), 3296 states have internal predecessors, (4286), 1093 states have call successors, (1093), 271 states have call predecessors, (1093), 272 states have return successors, (1100), 1048 states have call predecessors, (1100), 1092 states have call successors, (1100) [2022-11-18 18:51:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 6479 transitions. [2022-11-18 18:51:14,934 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 6479 transitions. Word has length 165 [2022-11-18 18:51:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:14,936 INFO L495 AbstractCegarLoop]: Abstraction has 4527 states and 6479 transitions. [2022-11-18 18:51:14,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 18:51:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 6479 transitions. [2022-11-18 18:51:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-18 18:51:14,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:14,957 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:14,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:15,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-18 18:51:15,187 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1571399871, now seen corresponding path program 1 times [2022-11-18 18:51:15,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:15,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416704258] [2022-11-18 18:51:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:15,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:51:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:51:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:51:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 18:51:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 18:51:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:51:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 18:51:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:51:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 18:51:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:51:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 18:51:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:51:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:51:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:51:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 18:51:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 18:51:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-18 18:51:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:20,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416704258] [2022-11-18 18:51:20,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416704258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:51:20,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481070255] [2022-11-18 18:51:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:20,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:51:20,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:51:21,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:51:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:23,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 7729 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-18 18:51:23,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:51:24,056 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-18 18:51:24,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:51:24,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481070255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:24,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:51:24,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 15 [2022-11-18 18:51:24,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830656633] [2022-11-18 18:51:24,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:24,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:51:24,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:24,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:51:24,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-18 18:51:24,061 INFO L87 Difference]: Start difference. First operand 4527 states and 6479 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:51:28,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:31,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:42,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:44,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:51:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:51:47,662 INFO L93 Difference]: Finished difference Result 10291 states and 15804 transitions. [2022-11-18 18:51:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:51:47,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 183 [2022-11-18 18:51:47,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:51:47,750 INFO L225 Difference]: With dead ends: 10291 [2022-11-18 18:51:47,751 INFO L226 Difference]: Without dead ends: 10288 [2022-11-18 18:51:47,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:51:47,766 INFO L413 NwaCegarLoop]: 4243 mSDtfsCounter, 5962 mSDsluCounter, 4587 mSDsCounter, 0 mSdLazyCounter, 5437 mSolverCounterSat, 2337 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6473 SdHoareTripleChecker+Valid, 8830 SdHoareTripleChecker+Invalid, 7778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2337 IncrementalHoareTripleChecker+Valid, 5437 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:51:47,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6473 Valid, 8830 Invalid, 7778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2337 Valid, 5437 Invalid, 4 Unknown, 0 Unchecked, 22.6s Time] [2022-11-18 18:51:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10288 states. [2022-11-18 18:51:48,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10288 to 9868. [2022-11-18 18:51:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9868 states, 6817 states have (on average 1.3495672583247762) internal successors, (9200), 7096 states have internal predecessors, (9200), 2414 states have call successors, (2414), 524 states have call predecessors, (2414), 636 states have return successors, (3486), 2436 states have call predecessors, (3486), 2413 states have call successors, (3486) [2022-11-18 18:51:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9868 states to 9868 states and 15100 transitions. [2022-11-18 18:51:48,814 INFO L78 Accepts]: Start accepts. Automaton has 9868 states and 15100 transitions. Word has length 183 [2022-11-18 18:51:48,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:51:48,817 INFO L495 AbstractCegarLoop]: Abstraction has 9868 states and 15100 transitions. [2022-11-18 18:51:48,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:51:48,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9868 states and 15100 transitions. [2022-11-18 18:51:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 18:51:48,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:51:48,868 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:51:48,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:51:49,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ef92ae-f741-47c2-bcb4-0a5c1ab3c154/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:51:49,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:51:49,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:51:49,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1270623529, now seen corresponding path program 1 times [2022-11-18 18:51:49,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:51:49,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648930809] [2022-11-18 18:51:49,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:51:49,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:51:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:51:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:51:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:51:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 18:51:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 18:51:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:51:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 18:51:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-18 18:51:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 18:51:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:51:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:51:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-18 18:51:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-18 18:51:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-18 18:51:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-18 18:51:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:51:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-18 18:51:50,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:51:50,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648930809] [2022-11-18 18:51:50,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648930809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:51:50,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:51:50,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:51:50,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360924592] [2022-11-18 18:51:50,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:51:50,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:51:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:51:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:51:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:51:50,880 INFO L87 Difference]: Start difference. First operand 9868 states and 15100 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 18:52:01,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:03,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:07,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:31,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:33,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:35,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:38,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:41,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:43,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:48,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:52:57,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:00,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:10,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:12,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:14,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:17,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:19,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:53:30,308 INFO L93 Difference]: Finished difference Result 35766 states and 64857 transitions. [2022-11-18 18:53:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:53:30,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 218 [2022-11-18 18:53:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:53:30,580 INFO L225 Difference]: With dead ends: 35766 [2022-11-18 18:53:30,580 INFO L226 Difference]: Without dead ends: 25909 [2022-11-18 18:53:30,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:53:30,731 INFO L413 NwaCegarLoop]: 3672 mSDtfsCounter, 11262 mSDsluCounter, 15344 mSDsCounter, 0 mSdLazyCounter, 24747 mSolverCounterSat, 6857 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11747 SdHoareTripleChecker+Valid, 19016 SdHoareTripleChecker+Invalid, 31620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 6857 IncrementalHoareTripleChecker+Valid, 24747 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:53:30,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11747 Valid, 19016 Invalid, 31620 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [6857 Valid, 24747 Invalid, 16 Unknown, 0 Unchecked, 95.6s Time] [2022-11-18 18:53:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25909 states. [2022-11-18 18:53:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25909 to 21563. [2022-11-18 18:53:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21563 states, 14865 states have (on average 1.3436259670366633) internal successors, (19973), 15436 states have internal predecessors, (19973), 5244 states have call successors, (5244), 1051 states have call predecessors, (5244), 1453 states have return successors, (10796), 5487 states have call predecessors, (10796), 5243 states have call successors, (10796) [2022-11-18 18:53:34,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21563 states to 21563 states and 36013 transitions. [2022-11-18 18:53:34,484 INFO L78 Accepts]: Start accepts. Automaton has 21563 states and 36013 transitions. Word has length 218 [2022-11-18 18:53:34,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:53:34,484 INFO L495 AbstractCegarLoop]: Abstraction has 21563 states and 36013 transitions. [2022-11-18 18:53:34,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 18:53:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 21563 states and 36013 transitions. [2022-11-18 18:53:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-18 18:53:34,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:53:34,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:53:34,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:53:34,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:53:34,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:53:34,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1379753247, now seen corresponding path program 1 times [2022-11-18 18:53:34,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:53:34,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321294176] [2022-11-18 18:53:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:53:34,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:53:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:53:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:53:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:53:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 18:53:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 18:53:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:53:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:53:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:53:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:53:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-18 18:53:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:53:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-18 18:53:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:53:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:53:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:53:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-18 18:53:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-18 18:53:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:53:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-11-18 18:53:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:53:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-18 18:53:37,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:53:37,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321294176] [2022-11-18 18:53:37,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321294176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:53:37,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:53:37,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:53:37,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093375845] [2022-11-18 18:53:37,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:53:37,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:53:37,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:53:37,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:53:37,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:53:37,226 INFO L87 Difference]: Start difference. First operand 21563 states and 36013 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (23), 9 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:53:46,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:50,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:55,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:57,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:53:59,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:03,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:04,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:07,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:09,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:30,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:33,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:35,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:39,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:41,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:51,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:54:54,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:02,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:55:10,331 INFO L93 Difference]: Finished difference Result 73251 states and 146530 transitions. [2022-11-18 18:55:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:55:10,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (23), 9 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 259 [2022-11-18 18:55:10,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:55:10,947 INFO L225 Difference]: With dead ends: 73251 [2022-11-18 18:55:10,948 INFO L226 Difference]: Without dead ends: 51699 [2022-11-18 18:55:11,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2022-11-18 18:55:11,134 INFO L413 NwaCegarLoop]: 3763 mSDtfsCounter, 18415 mSDsluCounter, 14318 mSDsCounter, 0 mSdLazyCounter, 21204 mSolverCounterSat, 14290 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18897 SdHoareTripleChecker+Valid, 18081 SdHoareTripleChecker+Invalid, 35507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 14290 IncrementalHoareTripleChecker+Valid, 21204 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:55:11,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18897 Valid, 18081 Invalid, 35507 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [14290 Valid, 21204 Invalid, 13 Unknown, 0 Unchecked, 86.8s Time] [2022-11-18 18:55:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51699 states. [2022-11-18 18:55:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51699 to 43029. [2022-11-18 18:55:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43029 states, 29643 states have (on average 1.3434875012650542) internal successors, (39825), 30812 states have internal predecessors, (39825), 10474 states have call successors, (10474), 2105 states have call predecessors, (10474), 2911 states have return successors, (27214), 10933 states have call predecessors, (27214), 10473 states have call successors, (27214) [2022-11-18 18:55:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43029 states to 43029 states and 77513 transitions. [2022-11-18 18:55:17,245 INFO L78 Accepts]: Start accepts. Automaton has 43029 states and 77513 transitions. Word has length 259 [2022-11-18 18:55:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:55:17,246 INFO L495 AbstractCegarLoop]: Abstraction has 43029 states and 77513 transitions. [2022-11-18 18:55:17,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (23), 9 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-18 18:55:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 43029 states and 77513 transitions. [2022-11-18 18:55:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-18 18:55:17,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:55:17,344 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:55:17,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:55:17,344 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:55:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:55:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 95822433, now seen corresponding path program 1 times [2022-11-18 18:55:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:55:17,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585261499] [2022-11-18 18:55:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:55:17,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:55:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:55:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:55:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:55:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:55:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 18:55:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 18:55:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 18:55:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:55:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 18:55:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:55:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-18 18:55:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:55:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-18 18:55:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:55:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:55:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:55:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:55:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:55:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:55:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:55:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:55:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-18 18:55:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-11-18 18:55:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:55:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:55:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:55:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-18 18:55:19,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:55:19,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585261499] [2022-11-18 18:55:19,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585261499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:55:19,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:55:19,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:55:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104250116] [2022-11-18 18:55:19,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:55:19,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:55:19,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:55:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:55:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:55:19,512 INFO L87 Difference]: Start difference. First operand 43029 states and 77513 transitions. Second operand has 10 states, 10 states have (on average 14.7) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-18 18:55:27,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:30,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:32,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:34,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:36,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:38,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:40,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:42,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:44,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:46,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:48,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:50,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:53,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:55,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:55:57,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:09,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:10,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:12,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:15,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:17,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:24,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:27,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:28,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:30,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:36,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:38,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:52,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:53,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:56:55,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:02,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:04,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:06,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:57:22,920 INFO L93 Difference]: Finished difference Result 146205 states and 333374 transitions. [2022-11-18 18:57:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 18:57:22,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 278 [2022-11-18 18:57:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:57:24,674 INFO L225 Difference]: With dead ends: 146205 [2022-11-18 18:57:24,674 INFO L226 Difference]: Without dead ends: 103187 [2022-11-18 18:57:25,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2022-11-18 18:57:25,520 INFO L413 NwaCegarLoop]: 3616 mSDtfsCounter, 10611 mSDsluCounter, 15287 mSDsCounter, 0 mSdLazyCounter, 24629 mSolverCounterSat, 6436 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11092 SdHoareTripleChecker+Valid, 18903 SdHoareTripleChecker+Invalid, 31089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 6436 IncrementalHoareTripleChecker+Valid, 24629 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:57:25,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11092 Valid, 18903 Invalid, 31089 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [6436 Valid, 24629 Invalid, 24 Unknown, 0 Unchecked, 111.7s Time] [2022-11-18 18:57:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103187 states. [2022-11-18 18:57:36,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103187 to 86037. [2022-11-18 18:57:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86037 states, 59271 states have (on average 1.3430682795971047) internal successors, (79605), 61600 states have internal predecessors, (79605), 20930 states have call successors, (20930), 4217 states have call predecessors, (20930), 5835 states have return successors, (72566), 21861 states have call predecessors, (72566), 20929 states have call successors, (72566) [2022-11-18 18:57:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86037 states to 86037 states and 173101 transitions. [2022-11-18 18:57:37,890 INFO L78 Accepts]: Start accepts. Automaton has 86037 states and 173101 transitions. Word has length 278 [2022-11-18 18:57:37,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:57:37,891 INFO L495 AbstractCegarLoop]: Abstraction has 86037 states and 173101 transitions. [2022-11-18 18:57:37,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-18 18:57:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 86037 states and 173101 transitions. [2022-11-18 18:57:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-18 18:57:37,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:57:37,985 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:57:37,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:57:37,985 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:57:37,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:57:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1166587658, now seen corresponding path program 1 times [2022-11-18 18:57:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:57:37,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159949661] [2022-11-18 18:57:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:57:37,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:57:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:57:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:57:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:57:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:57:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:57:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:57:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:57:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:57:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:57:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 18:57:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:57:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:57:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 18:57:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:57:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:57:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-18 18:57:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:57:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 18:57:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:57:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 18:57:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:57:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:57:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 18:57:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:57:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-11-18 18:57:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-11-18 18:57:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-11-18 18:57:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-18 18:57:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:57:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-11-18 18:57:40,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:57:40,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159949661] [2022-11-18 18:57:40,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159949661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:57:40,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:57:40,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:57:40,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493041844] [2022-11-18 18:57:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:57:40,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:57:40,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:57:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:57:40,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:57:40,819 INFO L87 Difference]: Start difference. First operand 86037 states and 173101 transitions. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (33), 9 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 18:57:48,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:51,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:55,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:57,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:57:59,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:02,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:14,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:16,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:25,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:31,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:35,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:37,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:39,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:53,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:57,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:58:59,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:59:01,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:59:03,602 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 []