./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF --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 e5d904d16bfadec9650eee3419425295e6c215eb7ede78bce460c631a5749a1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:47:27,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:47:27,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:47:27,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:47:27,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:47:27,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:47:27,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:47:27,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:47:27,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:47:27,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:47:27,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:47:27,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:47:27,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:47:27,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:47:27,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:47:27,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:47:27,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:47:27,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:47:27,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:47:27,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:47:27,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:47:27,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:47:27,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:47:27,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:47:27,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:47:27,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:47:27,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:47:27,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:47:27,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:47:27,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:47:27,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:47:27,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:47:27,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:47:27,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:47:27,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:47:27,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:47:27,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:47:27,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:47:27,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:47:27,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:47:27,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:47:27,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 05:47:27,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:47:27,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:47:27,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:47:27,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:47:27,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:47:27,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:47:27,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:47:27,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:47:27,900 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:47:27,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:47:27,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:47:27,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:47:27,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:47:27,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:47:27,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:47:27,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:47:27,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:47:27,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:47:27,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:47:27,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:47:27,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:47:27,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:47:27,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:47:27,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:47:27,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:47:27,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:47:27,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:47:27,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:47:27,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:47:27,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:47:27,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:47:27,905 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_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5d904d16bfadec9650eee3419425295e6c215eb7ede78bce460c631a5749a1f [2021-11-20 05:47:28,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:47:28,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:47:28,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:47:28,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:47:28,185 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:47:28,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i [2021-11-20 05:47:28,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/data/79e6095e4/eec4778a29524987b8f4f03f0ca1a99c/FLAGb68596242 [2021-11-20 05:47:29,121 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:47:29,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i [2021-11-20 05:47:29,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/data/79e6095e4/eec4778a29524987b8f4f03f0ca1a99c/FLAGb68596242 [2021-11-20 05:47:29,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/data/79e6095e4/eec4778a29524987b8f4f03f0ca1a99c [2021-11-20 05:47:29,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:47:29,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:47:29,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:29,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:47:29,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:47:29,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:29" (1/1) ... [2021-11-20 05:47:29,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c0470c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:29, skipping insertion in model container [2021-11-20 05:47:29,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:29" (1/1) ... [2021-11-20 05:47:29,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:47:29,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:47:30,753 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i[167966,167979] [2021-11-20 05:47:31,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:31,833 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:47:31,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i[167966,167979] [2021-11-20 05:47:32,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:32,410 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:47:32,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32 WrapperNode [2021-11-20 05:47:32,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:32,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:32,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:47:32,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:47:32,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,771 INFO L137 Inliner]: procedures = 229, calls = 2513, calls flagged for inlining = 116, calls inlined = 110, statements flattened = 6309 [2021-11-20 05:47:32,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:32,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:47:32,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:47:32,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:47:32,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:32,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:33,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:33,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:47:33,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:47:33,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:47:33,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:47:33,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (1/1) ... [2021-11-20 05:47:33,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:47:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:33,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:33,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:47:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 05:47:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 05:47:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 05:47:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 05:47:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 05:47:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 05:47:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-20 05:47:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-20 05:47:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_fixup [2021-11-20 05:47:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_fixup [2021-11-20 05:47:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_tx_fixup [2021-11-20 05:47:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_tx_fixup [2021-11-20 05:47:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_find_endpoints [2021-11-20 05:47:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_find_endpoints [2021-11-20 05:47:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_flags [2021-11-20 05:47:33,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_flags [2021-11-20 05:47:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:47:33,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:47:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 05:47:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-20 05:47:33,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-20 05:47:33,149 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_bind [2021-11-20 05:47:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_bind [2021-11-20 05:47:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_update_rxtx_max [2021-11-20 05:47:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_update_rxtx_max [2021-11-20 05:47:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 05:47:33,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 05:47:33,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-20 05:47:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-20 05:47:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 05:47:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 05:47:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:47:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:47:33,151 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 05:47:33,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 05:47:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2021-11-20 05:47:33,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2021-11-20 05:47:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_free [2021-11-20 05:47:33,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_free [2021-11-20 05:47:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:47:33,152 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_eth_hlen [2021-11-20 05:47:33,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_eth_hlen [2021-11-20 05:47:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 05:47:33,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 05:47:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:47:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_link_change [2021-11-20 05:47:33,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_link_change [2021-11-20 05:47:33,153 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_active [2021-11-20 05:47:33,153 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_active [2021-11-20 05:47:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-20 05:47:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-20 05:47:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-20 05:47:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:47:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:47:33,154 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 05:47:33,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 05:47:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-20 05:47:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-20 05:47:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 05:47:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 05:47:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 05:47:33,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 05:47:33,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-20 05:47:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-20 05:47:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_manage_power [2021-11-20 05:47:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_manage_power [2021-11-20 05:47:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 05:47:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 05:47:33,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 05:47:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-20 05:47:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-20 05:47:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 05:47:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_check_rx_max [2021-11-20 05:47:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_check_rx_max [2021-11-20 05:47:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:47:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-20 05:47:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-20 05:47:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-11-20 05:47:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-11-20 05:47:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 05:47:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 05:47:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-20 05:47:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_write_cmd [2021-11-20 05:47:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-20 05:47:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-20 05:47:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock_bh [2021-11-20 05:47:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock_bh [2021-11-20 05:47:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock_bh [2021-11-20 05:47:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock_bh [2021-11-20 05:47:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:47:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_status [2021-11-20 05:47:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_status [2021-11-20 05:47:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 05:47:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 05:47:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-20 05:47:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_read_cmd [2021-11-20 05:47:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:47:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 05:47:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 05:47:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:47:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:47:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 05:47:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_speed_change [2021-11-20 05:47:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_speed_change [2021-11-20 05:47:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_align_tail [2021-11-20 05:47:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_align_tail [2021-11-20 05:47:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-20 05:47:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-20 05:47:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2021-11-20 05:47:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2021-11-20 05:47:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_check_tx_max [2021-11-20 05:47:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_check_tx_max [2021-11-20 05:47:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 05:47:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 05:47:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-20 05:47:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-20 05:47:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 05:47:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 05:47:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2021-11-20 05:47:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2021-11-20 05:47:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_tx_timeout_start [2021-11-20 05:47:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_tx_timeout_start [2021-11-20 05:47:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 05:47:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 05:47:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2021-11-20 05:47:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2021-11-20 05:47:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:47:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:47:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:47:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-20 05:47:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-20 05:47:33,979 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:47:33,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:47:34,200 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 05:49:05,808 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:49:05,838 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:49:05,838 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:49:05,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:05 BoogieIcfgContainer [2021-11-20 05:49:05,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:49:05,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:49:05,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:49:05,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:49:05,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:47:29" (1/3) ... [2021-11-20 05:49:05,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dac62c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:49:05, skipping insertion in model container [2021-11-20 05:49:05,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:32" (2/3) ... [2021-11-20 05:49:05,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dac62c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:49:05, skipping insertion in model container [2021-11-20 05:49:05,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:05" (3/3) ... [2021-11-20 05:49:05,852 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i [2021-11-20 05:49:05,857 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:49:05,857 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:49:05,914 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:49:05,920 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:49:05,920 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:49:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 1465 states, 1111 states have (on average 1.441944194419442) internal successors, (1602), 1141 states have internal predecessors, (1602), 297 states have call successors, (297), 56 states have call predecessors, (297), 55 states have return successors, (276), 275 states have call predecessors, (276), 276 states have call successors, (276) [2021-11-20 05:49:06,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-20 05:49:06,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:06,021 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:06,021 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:06,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:06,027 INFO L85 PathProgramCache]: Analyzing trace with hash -994766168, now seen corresponding path program 1 times [2021-11-20 05:49:06,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:06,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089539098] [2021-11-20 05:49:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:06,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:49:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:49:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:49:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:49:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:49:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:49:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:49:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:49:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:49:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:49:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:49:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:49:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:49:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:49:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:49:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:49:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:49:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:49:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:49:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:49:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:49:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:49:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:49:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:49:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:49:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:49:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:49:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:49:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:49:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:49:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:49:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:49:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:49:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:49:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:49:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:49:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:49:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:49:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:49:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:49:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:49:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4348 trivial. 0 not checked. [2021-11-20 05:49:07,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:07,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089539098] [2021-11-20 05:49:07,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089539098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:07,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:07,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:49:07,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110844471] [2021-11-20 05:49:07,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:07,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:49:07,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:07,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:49:07,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:49:07,972 INFO L87 Difference]: Start difference. First operand has 1465 states, 1111 states have (on average 1.441944194419442) internal successors, (1602), 1141 states have internal predecessors, (1602), 297 states have call successors, (297), 56 states have call predecessors, (297), 55 states have return successors, (276), 275 states have call predecessors, (276), 276 states have call successors, (276) Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2021-11-20 05:49:10,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:12,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:14,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:22,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:24,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:27,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:29,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:31,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:33,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:37,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:39,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:47,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:49,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:51,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:51,957 INFO L93 Difference]: Finished difference Result 4673 states and 7236 transitions. [2021-11-20 05:49:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:49:51,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 329 [2021-11-20 05:49:51,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:52,032 INFO L225 Difference]: With dead ends: 4673 [2021-11-20 05:49:52,033 INFO L226 Difference]: Without dead ends: 3163 [2021-11-20 05:49:52,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:49:52,067 INFO L933 BasicCegarLoop]: 2244 mSDtfsCounter, 3652 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 1386 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3839 SdHoareTripleChecker+Valid, 6117 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1386 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:52,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3839 Valid, 6117 Invalid, 3696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1386 Valid, 2298 Invalid, 12 Unknown, 0 Unchecked, 43.3s Time] [2021-11-20 05:49:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2021-11-20 05:49:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 2705. [2021-11-20 05:49:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2116 states have (on average 1.4371455576559546) internal successors, (3041), 2130 states have internal predecessors, (3041), 480 states have call successors, (480), 109 states have call predecessors, (480), 108 states have return successors, (479), 477 states have call predecessors, (479), 479 states have call successors, (479) [2021-11-20 05:49:52,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4000 transitions. [2021-11-20 05:49:52,412 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4000 transitions. Word has length 329 [2021-11-20 05:49:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:52,417 INFO L470 AbstractCegarLoop]: Abstraction has 2705 states and 4000 transitions. [2021-11-20 05:49:52,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2021-11-20 05:49:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4000 transitions. [2021-11-20 05:49:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-20 05:49:52,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:52,436 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:52,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:49:52,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:52,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1399094830, now seen corresponding path program 1 times [2021-11-20 05:49:52,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:52,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635244516] [2021-11-20 05:49:52,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:52,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:49:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:49:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:49:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:49:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:49:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:49:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:49:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:49:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:49:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:49:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:49:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:49:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:49:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:49:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:49:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:49:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:49:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:49:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:49:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:49:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:49:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:49:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:49:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:49:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:49:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:49:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:49:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:49:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:49:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:49:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:49:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:49:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:49:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:49:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:49:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:49:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:49:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:49:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:49:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:49:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:49:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:49:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:54,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4536 trivial. 0 not checked. [2021-11-20 05:49:54,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:54,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635244516] [2021-11-20 05:49:54,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635244516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:54,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:54,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:49:54,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912385712] [2021-11-20 05:49:54,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:54,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:49:54,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:54,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:49:54,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:49:54,013 INFO L87 Difference]: Start difference. First operand 2705 states and 4000 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-20 05:49:56,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:58,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:09,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:11,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:13,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:16,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:18,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:20,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:23,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:28,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:30,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:33,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:36,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:38,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:40,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:42,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:45,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:48,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:50:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:55,389 INFO L93 Difference]: Finished difference Result 8816 states and 13331 transitions. [2021-11-20 05:50:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:50:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 338 [2021-11-20 05:50:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:55,458 INFO L225 Difference]: With dead ends: 8816 [2021-11-20 05:50:55,459 INFO L226 Difference]: Without dead ends: 6211 [2021-11-20 05:50:55,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:50:55,480 INFO L933 BasicCegarLoop]: 2318 mSDtfsCounter, 3789 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 3385 mSolverCounterSat, 1298 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 4700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 3385 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:55,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4034 Valid, 10235 Invalid, 4700 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1298 Valid, 3385 Invalid, 17 Unknown, 0 Unchecked, 60.6s Time] [2021-11-20 05:50:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2021-11-20 05:50:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 5361. [2021-11-20 05:50:55,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 4222 states have (on average 1.4414969208905732) internal successors, (6086), 4258 states have internal predecessors, (6086), 914 states have call successors, (914), 217 states have call predecessors, (914), 224 states have return successors, (969), 911 states have call predecessors, (969), 913 states have call successors, (969) [2021-11-20 05:50:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 7969 transitions. [2021-11-20 05:50:55,808 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 7969 transitions. Word has length 338 [2021-11-20 05:50:55,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:55,810 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 7969 transitions. [2021-11-20 05:50:55,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-20 05:50:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 7969 transitions. [2021-11-20 05:50:55,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-11-20 05:50:55,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:55,835 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:55,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:50:55,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:55,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash -552953833, now seen corresponding path program 1 times [2021-11-20 05:50:55,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:55,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091440797] [2021-11-20 05:50:55,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:55,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:50:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:50:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:50:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:50:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:50:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:50:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:50:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:50:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:50:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:50:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:50:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:50:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:50:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:50:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:50:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:50:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:50:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:50:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:50:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:50:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:50:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:50:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:50:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:50:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:50:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:50:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:50:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:50:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:50:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:50:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:50:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:50:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:50:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:50:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:50:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:50:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:50:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:50:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:50:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:50:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:50:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:50:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:50:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:50:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:50:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:50:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:50:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:50:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:50:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:50:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-20 05:50:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:50:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:50:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:50:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:50:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4728 trivial. 0 not checked. [2021-11-20 05:50:57,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:57,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091440797] [2021-11-20 05:50:57,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091440797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:57,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:57,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:50:57,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991724717] [2021-11-20 05:50:57,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:57,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:50:57,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:57,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:50:57,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:50:57,356 INFO L87 Difference]: Start difference. First operand 5361 states and 7969 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:50:59,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:01,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:09,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:11,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:14,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:17,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:21,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:23,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:32,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:35,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:35,672 INFO L93 Difference]: Finished difference Result 17285 states and 25998 transitions. [2021-11-20 05:51:35,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:51:35,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 406 [2021-11-20 05:51:35,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:35,792 INFO L225 Difference]: With dead ends: 17285 [2021-11-20 05:51:35,793 INFO L226 Difference]: Without dead ends: 12030 [2021-11-20 05:51:35,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:51:35,830 INFO L933 BasicCegarLoop]: 2211 mSDtfsCounter, 4389 mSDsluCounter, 3676 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 1813 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4647 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1813 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:35,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4647 Valid, 5887 Invalid, 4129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1813 Valid, 2307 Invalid, 9 Unknown, 0 Unchecked, 37.6s Time] [2021-11-20 05:51:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12030 states. [2021-11-20 05:51:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12030 to 10489. [2021-11-20 05:51:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10489 states, 8330 states have (on average 1.446578631452581) internal successors, (12050), 8408 states have internal predecessors, (12050), 1706 states have call successors, (1706), 433 states have call predecessors, (1706), 452 states have return successors, (1832), 1699 states have call predecessors, (1832), 1705 states have call successors, (1832) [2021-11-20 05:51:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10489 states to 10489 states and 15588 transitions. [2021-11-20 05:51:36,438 INFO L78 Accepts]: Start accepts. Automaton has 10489 states and 15588 transitions. Word has length 406 [2021-11-20 05:51:36,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:36,445 INFO L470 AbstractCegarLoop]: Abstraction has 10489 states and 15588 transitions. [2021-11-20 05:51:36,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:51:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 10489 states and 15588 transitions. [2021-11-20 05:51:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-20 05:51:36,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:36,471 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:36,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:51:36,472 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:51:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:36,473 INFO L85 PathProgramCache]: Analyzing trace with hash -913167886, now seen corresponding path program 1 times [2021-11-20 05:51:36,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:36,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161919379] [2021-11-20 05:51:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:36,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:36,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:51:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:51:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:51:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:51:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:51:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:51:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:51:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:51:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:51:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:51:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:51:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:51:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:51:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:51:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:51:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:51:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:51:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:51:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:51:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:51:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:51:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:51:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:51:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:51:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:51:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:51:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:51:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:51:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:51:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:51:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:51:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:51:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:51:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:51:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:51:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:51:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:51:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:51:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:51:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:51:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:51:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:51:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:51:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:51:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:51:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:51:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:51:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:51:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:51:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:51:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:51:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-20 05:51:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:51:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:51:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:51:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:51:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:51:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4728 trivial. 0 not checked. [2021-11-20 05:51:37,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:37,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161919379] [2021-11-20 05:51:37,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161919379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:37,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:37,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:51:37,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382534561] [2021-11-20 05:51:37,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:37,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:51:37,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:37,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:51:37,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:51:37,853 INFO L87 Difference]: Start difference. First operand 10489 states and 15588 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:51:39,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:42,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:44,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:53,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:55,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:51:58,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:00,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:02,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:05,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:07,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:09,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:14,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:16,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:27,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:29,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:31,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:34,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:37,583 INFO L93 Difference]: Finished difference Result 34237 states and 51361 transitions. [2021-11-20 05:52:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:52:37,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 400 [2021-11-20 05:52:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:37,719 INFO L225 Difference]: With dead ends: 34237 [2021-11-20 05:52:37,719 INFO L226 Difference]: Without dead ends: 23854 [2021-11-20 05:52:37,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:52:37,776 INFO L933 BasicCegarLoop]: 2302 mSDtfsCounter, 3012 mSDsluCounter, 4442 mSDsCounter, 0 mSdLazyCounter, 3637 mSolverCounterSat, 731 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 6744 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 3637 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:37,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3272 Valid, 6744 Invalid, 4383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [731 Valid, 3637 Invalid, 15 Unknown, 0 Unchecked, 58.9s Time] [2021-11-20 05:52:37,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23854 states. [2021-11-20 05:52:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23854 to 20489. [2021-11-20 05:52:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20489 states, 16328 states have (on average 1.4468397844194023) internal successors, (23624), 16486 states have internal predecessors, (23624), 3256 states have call successors, (3256), 865 states have call predecessors, (3256), 904 states have return successors, (3465), 3241 states have call predecessors, (3465), 3255 states have call successors, (3465) [2021-11-20 05:52:39,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20489 states to 20489 states and 30345 transitions. [2021-11-20 05:52:39,077 INFO L78 Accepts]: Start accepts. Automaton has 20489 states and 30345 transitions. Word has length 400 [2021-11-20 05:52:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:39,078 INFO L470 AbstractCegarLoop]: Abstraction has 20489 states and 30345 transitions. [2021-11-20 05:52:39,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:52:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 20489 states and 30345 transitions. [2021-11-20 05:52:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-20 05:52:39,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:39,091 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:39,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:52:39,092 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:52:39,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash 688730240, now seen corresponding path program 1 times [2021-11-20 05:52:39,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:39,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755882865] [2021-11-20 05:52:39,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:39,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:52:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:52:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:52:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:52:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:52:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:52:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:52:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:52:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:52:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:52:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:52:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:52:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:52:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:52:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:52:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:52:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:52:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:52:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:52:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:52:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:52:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:52:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:52:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:52:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:52:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:52:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:52:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:52:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:52:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:52:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:52:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:52:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:52:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:52:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:52:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:52:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:52:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:52:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:52:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:52:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:52:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:52:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:52:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:52:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:52:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:52:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:52:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:52:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:52:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:52:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:52:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:52:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:52:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:52:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:52:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:52:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-20 05:52:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4733 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4728 trivial. 0 not checked. [2021-11-20 05:52:40,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:40,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755882865] [2021-11-20 05:52:40,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755882865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:40,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:40,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:52:40,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383562428] [2021-11-20 05:52:40,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:40,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:52:40,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:40,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:52:40,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:52:40,510 INFO L87 Difference]: Start difference. First operand 20489 states and 30345 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:52:42,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:44,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:52:47,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:03,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:06,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:08,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:10,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:13,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:15,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:19,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:25,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:27,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:29,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:33,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:44,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:53:44,302 INFO L93 Difference]: Finished difference Result 64006 states and 95583 transitions. [2021-11-20 05:53:44,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:53:44,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 393 [2021-11-20 05:53:44,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:53:44,517 INFO L225 Difference]: With dead ends: 64006 [2021-11-20 05:53:44,517 INFO L226 Difference]: Without dead ends: 43623 [2021-11-20 05:53:44,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:53:44,594 INFO L933 BasicCegarLoop]: 3018 mSDtfsCounter, 2740 mSDsluCounter, 5184 mSDsCounter, 0 mSdLazyCounter, 4757 mSolverCounterSat, 626 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3010 SdHoareTripleChecker+Valid, 8202 SdHoareTripleChecker+Invalid, 5396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 4757 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:53:44,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3010 Valid, 8202 Invalid, 5396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [626 Valid, 4757 Invalid, 13 Unknown, 0 Unchecked, 62.4s Time] [2021-11-20 05:53:44,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43623 states. [2021-11-20 05:53:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43623 to 37601. [2021-11-20 05:53:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37601 states, 30077 states have (on average 1.4451574292648868) internal successors, (43466), 30387 states have internal predecessors, (43466), 5818 states have call successors, (5818), 1614 states have call predecessors, (5818), 1705 states have return successors, (6288), 5795 states have call predecessors, (6288), 5817 states have call successors, (6288) [2021-11-20 05:53:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37601 states to 37601 states and 55572 transitions. [2021-11-20 05:53:46,591 INFO L78 Accepts]: Start accepts. Automaton has 37601 states and 55572 transitions. Word has length 393 [2021-11-20 05:53:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:53:46,593 INFO L470 AbstractCegarLoop]: Abstraction has 37601 states and 55572 transitions. [2021-11-20 05:53:46,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-20 05:53:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 37601 states and 55572 transitions. [2021-11-20 05:53:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-20 05:53:46,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:53:46,668 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:53:46,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:53:46,669 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:53:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:53:46,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2012155677, now seen corresponding path program 1 times [2021-11-20 05:53:46,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:53:46,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340971060] [2021-11-20 05:53:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:53:46,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:53:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:53:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:53:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:53:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:53:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:53:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:53:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:53:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:53:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:53:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:53:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:53:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:53:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:53:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:53:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:53:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:53:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:53:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:53:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:53:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:53:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:53:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:53:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:53:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:47,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:53:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:53:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:53:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:53:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:53:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:53:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:53:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:53:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:53:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:53:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:53:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:53:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:53:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:53:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:53:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:53:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:53:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:53:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:53:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:53:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:53:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:53:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:53:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:53:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:53:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:53:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:53:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:53:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:53:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 05:53:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 05:53:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:53:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 05:53:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 05:53:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 05:53:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:53:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 05:53:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:53:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:53:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 05:53:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 05:53:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:53:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 05:53:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 05:53:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:53:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 05:53:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 05:53:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:53:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-11-20 05:53:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:53:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:53:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:53:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:53:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:53:48,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2021-11-20 05:53:48,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:53:48,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340971060] [2021-11-20 05:53:48,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340971060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:53:48,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:53:48,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:53:48,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026440390] [2021-11-20 05:53:48,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:53:48,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:53:48,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:53:48,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:53:48,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:53:48,858 INFO L87 Difference]: Start difference. First operand 37601 states and 55572 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-20 05:53:50,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:53,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:55,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:53:57,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:15,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:18,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:20,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:23,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:25,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:27,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:30,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:32,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:35,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:38,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:40,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:42,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:46,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:54:54,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:54:54,466 INFO L93 Difference]: Finished difference Result 102766 states and 153050 transitions. [2021-11-20 05:54:54,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:54:54,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 537 [2021-11-20 05:54:54,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:54:54,906 INFO L225 Difference]: With dead ends: 102766 [2021-11-20 05:54:54,907 INFO L226 Difference]: Without dead ends: 65275 [2021-11-20 05:54:54,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:54:54,995 INFO L933 BasicCegarLoop]: 2921 mSDtfsCounter, 2708 mSDsluCounter, 5514 mSDsCounter, 0 mSdLazyCounter, 4056 mSolverCounterSat, 689 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 4056 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:54:54,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 8435 Invalid, 4761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [689 Valid, 4056 Invalid, 16 Unknown, 0 Unchecked, 63.7s Time] [2021-11-20 05:54:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65275 states. [2021-11-20 05:54:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65275 to 56357. [2021-11-20 05:54:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56357 states, 45185 states have (on average 1.4437091955294898) internal successors, (65234), 45667 states have internal predecessors, (65234), 8586 states have call successors, (8586), 2438 states have call predecessors, (8586), 2585 states have return successors, (9249), 8551 states have call predecessors, (9249), 8585 states have call successors, (9249) [2021-11-20 05:54:57,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56357 states to 56357 states and 83069 transitions. [2021-11-20 05:54:57,846 INFO L78 Accepts]: Start accepts. Automaton has 56357 states and 83069 transitions. Word has length 537 [2021-11-20 05:54:57,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:54:57,847 INFO L470 AbstractCegarLoop]: Abstraction has 56357 states and 83069 transitions. [2021-11-20 05:54:57,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-20 05:54:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 56357 states and 83069 transitions. [2021-11-20 05:54:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-11-20 05:54:57,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:54:57,904 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:54:57,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:54:57,904 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:54:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:54:57,905 INFO L85 PathProgramCache]: Analyzing trace with hash -432724995, now seen corresponding path program 1 times [2021-11-20 05:54:57,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:54:57,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444478610] [2021-11-20 05:54:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:54:57,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:54:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:54:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:54:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:54:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:54:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:54:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:54:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:54:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:54:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:54:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:54:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:54:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:54:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:54:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:54:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:54:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:54:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:54:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:54:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:54:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:54:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:54:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:54:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:54:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:54:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:54:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:54:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:54:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:54:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:54:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:54:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:54:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:54:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:54:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:54:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:54:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:54:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:54:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:54:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:54:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:54:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:54:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:58,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:54:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:54:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:54:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:54:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:54:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:54:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:54:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:54:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:54:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:54:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:54:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 05:54:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 05:54:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:54:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 05:54:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 05:54:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 05:54:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:54:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 05:54:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:54:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:54:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 05:54:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 05:54:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:54:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 05:54:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 05:54:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:54:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 05:54:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 05:54:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:54:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-11-20 05:54:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:54:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:54:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:54:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:54:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:54:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9156 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2021-11-20 05:54:59,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:54:59,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444478610] [2021-11-20 05:54:59,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444478610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:54:59,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:54:59,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:54:59,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667812895] [2021-11-20 05:54:59,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:54:59,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:54:59,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:54:59,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:54:59,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:54:59,532 INFO L87 Difference]: Start difference. First operand 56357 states and 83069 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-20 05:55:01,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:03,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:06,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:19,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:22,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:24,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:26,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:29,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:31,307 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:33,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:39,672 INFO L93 Difference]: Finished difference Result 152288 states and 225861 transitions. [2021-11-20 05:55:39,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:55:39,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 530 [2021-11-20 05:55:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:40,046 INFO L225 Difference]: With dead ends: 152288 [2021-11-20 05:55:40,047 INFO L226 Difference]: Without dead ends: 96041 [2021-11-20 05:55:40,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:55:40,317 INFO L933 BasicCegarLoop]: 2991 mSDtfsCounter, 3244 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 1078 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 7658 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1078 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:40,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3468 Valid, 7658 Invalid, 3717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1078 Valid, 2630 Invalid, 9 Unknown, 0 Unchecked, 37.4s Time] [2021-11-20 05:55:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96041 states. [2021-11-20 05:55:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96041 to 83243. [2021-11-20 05:55:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83243 states, 66819 states have (on average 1.4412068423651956) internal successors, (96300), 67521 states have internal predecessors, (96300), 12574 states have call successors, (12574), 3654 states have call predecessors, (12574), 3849 states have return successors, (13414), 12515 states have call predecessors, (13414), 12573 states have call successors, (13414) [2021-11-20 05:55:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83243 states to 83243 states and 122288 transitions. [2021-11-20 05:55:43,980 INFO L78 Accepts]: Start accepts. Automaton has 83243 states and 122288 transitions. Word has length 530 [2021-11-20 05:55:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:43,982 INFO L470 AbstractCegarLoop]: Abstraction has 83243 states and 122288 transitions. [2021-11-20 05:55:43,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-20 05:55:43,982 INFO L276 IsEmpty]: Start isEmpty. Operand 83243 states and 122288 transitions. [2021-11-20 05:55:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-20 05:55:44,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:44,023 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:44,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:55:44,023 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:55:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash 991798494, now seen corresponding path program 1 times [2021-11-20 05:55:44,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:55:44,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926325358] [2021-11-20 05:55:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:44,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:55:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:55:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:55:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:55:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:55:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:55:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:55:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:55:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:55:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:55:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:55:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:55:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:55:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:55:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:55:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:55:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:55:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:55:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:55:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:55:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:55:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:55:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:44,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:55:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:55:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:55:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:55:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:55:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:55:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:55:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:55:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:55:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:55:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:55:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:55:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:55:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:55:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:55:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:55:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:55:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:55:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:55:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:55:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:55:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:55:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:55:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:55:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:55:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:55:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:55:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:55:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:55:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:55:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:55:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 05:55:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 05:55:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:55:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 05:55:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 05:55:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 05:55:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:55:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 05:55:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:55:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:55:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 05:55:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 05:55:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:55:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 05:55:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 05:55:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:55:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 05:55:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 05:55:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:55:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-11-20 05:55:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:55:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:55:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:55:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:55:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:45,649 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2021-11-20 05:55:45,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:55:45,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926325358] [2021-11-20 05:55:45,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926325358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:45,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:45,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:55:45,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888983732] [2021-11-20 05:55:45,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:45,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:55:45,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:55:45,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:55:45,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:55:45,653 INFO L87 Difference]: Start difference. First operand 83243 states and 122288 transitions. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-20 05:55:47,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:55:50,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:08,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:14,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:16,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:18,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:20,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:22,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:56:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:31,749 INFO L93 Difference]: Finished difference Result 224572 states and 331994 transitions. [2021-11-20 05:56:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:56:31,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 543 [2021-11-20 05:56:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:32,356 INFO L225 Difference]: With dead ends: 224572 [2021-11-20 05:56:32,356 INFO L226 Difference]: Without dead ends: 141439 [2021-11-20 05:56:32,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:56:32,502 INFO L933 BasicCegarLoop]: 2857 mSDtfsCounter, 2696 mSDsluCounter, 5480 mSDsCounter, 0 mSdLazyCounter, 3948 mSolverCounterSat, 689 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2914 SdHoareTripleChecker+Valid, 8337 SdHoareTripleChecker+Invalid, 4644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 3948 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:32,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2914 Valid, 8337 Invalid, 4644 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [689 Valid, 3948 Invalid, 7 Unknown, 0 Unchecked, 41.8s Time] [2021-11-20 05:56:32,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141439 states. [2021-11-20 05:56:36,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141439 to 122191. [2021-11-20 05:56:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122191 states, 98349 states have (on average 1.43938423369836) internal successors, (141562), 99405 states have internal predecessors, (141562), 18108 states have call successors, (18108), 5438 states have call predecessors, (18108), 5733 states have return successors, (19328), 18019 states have call predecessors, (19328), 18107 states have call successors, (19328) [2021-11-20 05:56:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122191 states to 122191 states and 178998 transitions. [2021-11-20 05:56:37,063 INFO L78 Accepts]: Start accepts. Automaton has 122191 states and 178998 transitions. Word has length 543 [2021-11-20 05:56:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:37,064 INFO L470 AbstractCegarLoop]: Abstraction has 122191 states and 178998 transitions. [2021-11-20 05:56:37,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-20 05:56:37,065 INFO L276 IsEmpty]: Start isEmpty. Operand 122191 states and 178998 transitions. [2021-11-20 05:56:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-20 05:56:37,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:37,103 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:37,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:56:37,103 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1403443674, now seen corresponding path program 1 times [2021-11-20 05:56:37,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:37,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720528085] [2021-11-20 05:56:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:37,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:56:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:56:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:56:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:56:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:56:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:56:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:56:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:56:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:56:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:56:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:56:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:56:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:56:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:56:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:56:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:56:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:56:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:56:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:56:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:56:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:56:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:56:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:56:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:56:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:56:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:56:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:56:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:56:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:56:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:56:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:56:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:56:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:56:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:56:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:56:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:56:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:56:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:56:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:56:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:56:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:56:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:56:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:56:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:56:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:56:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:56:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:56:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:56:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:56:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:56:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:56:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:56:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 05:56:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 05:56:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:56:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 05:56:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 05:56:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 05:56:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:56:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 05:56:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:56:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:56:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 05:56:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 05:56:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:56:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 05:56:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 05:56:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:56:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 05:56:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 05:56:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:56:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-20 05:56:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:56:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:56:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:56:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:56:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2021-11-20 05:56:39,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:39,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720528085] [2021-11-20 05:56:39,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720528085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:39,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:39,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 05:56:39,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296736129] [2021-11-20 05:56:39,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:39,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 05:56:39,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 05:56:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:56:39,781 INFO L87 Difference]: Start difference. First operand 122191 states and 178998 transitions. Second operand has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (77), 5 states have call predecessors, (77), 4 states have return successors, (76), 4 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-20 05:56:41,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:57:07,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:57:12,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:57:14,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:57:17,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:57:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:57:24,661 INFO L93 Difference]: Finished difference Result 271743 states and 402644 transitions. [2021-11-20 05:57:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 05:57:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (77), 5 states have call predecessors, (77), 4 states have return successors, (76), 4 states have call predecessors, (76), 2 states have call successors, (76) Word has length 543 [2021-11-20 05:57:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:57:25,556 INFO L225 Difference]: With dead ends: 271743 [2021-11-20 05:57:25,556 INFO L226 Difference]: Without dead ends: 149662 [2021-11-20 05:57:25,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-11-20 05:57:25,832 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 979 mSDsluCounter, 15101 mSDsCounter, 0 mSdLazyCounter, 4787 mSolverCounterSat, 582 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 17219 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 4787 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:57:25,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 17219 Invalid, 5373 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [582 Valid, 4787 Invalid, 4 Unknown, 0 Unchecked, 39.0s Time] [2021-11-20 05:57:25,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149662 states. [2021-11-20 05:57:30,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149662 to 125387. [2021-11-20 05:57:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125387 states, 100821 states have (on average 1.4372997688973528) internal successors, (144910), 102029 states have internal predecessors, (144910), 18572 states have call successors, (18572), 5438 states have call predecessors, (18572), 5993 states have return successors, (20513), 18607 states have call predecessors, (20513), 18571 states have call successors, (20513) [2021-11-20 05:57:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125387 states to 125387 states and 183995 transitions. [2021-11-20 05:57:30,656 INFO L78 Accepts]: Start accepts. Automaton has 125387 states and 183995 transitions. Word has length 543 [2021-11-20 05:57:30,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:57:30,658 INFO L470 AbstractCegarLoop]: Abstraction has 125387 states and 183995 transitions. [2021-11-20 05:57:30,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 7 states have internal predecessors, (175), 2 states have call successors, (77), 5 states have call predecessors, (77), 4 states have return successors, (76), 4 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-20 05:57:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 125387 states and 183995 transitions. [2021-11-20 05:57:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-11-20 05:57:30,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:57:30,693 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 67, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:57:30,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:57:30,693 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:57:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:57:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash 157658853, now seen corresponding path program 1 times [2021-11-20 05:57:30,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:57:30,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101139399] [2021-11-20 05:57:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:57:30,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:57:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:57:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:57:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:57:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:57:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:57:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:57:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:57:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:57:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:57:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:57:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:57:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:57:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:57:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:57:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:57:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:57:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:57:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:57:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:57:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:57:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:57:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:57:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:57:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:57:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:57:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:57:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:57:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:57:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:57:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:57:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:57:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:57:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:57:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:57:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:57:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:57:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:57:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:57:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:57:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:57:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:57:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:57:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:57:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:57:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:57:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:57:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:57:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:57:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:57:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:57:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:57:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:57:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 05:57:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 05:57:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:57:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 05:57:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 05:57:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 05:57:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:57:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 05:57:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:57:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:57:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 05:57:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 05:57:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:57:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 05:57:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 05:57:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:57:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 05:57:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 05:57:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:57:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-20 05:57:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:57:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:57:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:57:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:33,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:57:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:57:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2021-11-20 05:57:33,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:57:33,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101139399] [2021-11-20 05:57:33,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101139399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:57:33,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:57:33,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 05:57:33,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516524388] [2021-11-20 05:57:33,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:57:33,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:57:33,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:57:33,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:57:33,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:57:33,889 INFO L87 Difference]: Start difference. First operand 125387 states and 183995 transitions. Second operand has 13 states, 13 states have (on average 13.384615384615385) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (78), 5 states have call predecessors, (78), 4 states have return successors, (77), 5 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-20 05:57:36,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:57:38,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:03,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:09,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:11,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:15,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:17,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:19,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:21,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:23,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:26,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:28,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:30,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:58:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:58:40,168 INFO L93 Difference]: Finished difference Result 279611 states and 415725 transitions. [2021-11-20 05:58:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:58:40,169 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.384615384615385) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (78), 5 states have call predecessors, (78), 4 states have return successors, (77), 5 states have call predecessors, (77), 3 states have call successors, (77) Word has length 544 [2021-11-20 05:58:40,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:58:41,165 INFO L225 Difference]: With dead ends: 279611 [2021-11-20 05:58:41,166 INFO L226 Difference]: Without dead ends: 154334 [2021-11-20 05:58:41,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:58:41,437 INFO L933 BasicCegarLoop]: 2275 mSDtfsCounter, 980 mSDsluCounter, 18359 mSDsCounter, 0 mSdLazyCounter, 5309 mSolverCounterSat, 565 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 20634 SdHoareTripleChecker+Invalid, 5886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 5309 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:58:41,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1052 Valid, 20634 Invalid, 5886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [565 Valid, 5309 Invalid, 12 Unknown, 0 Unchecked, 60.5s Time] [2021-11-20 05:58:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154334 states. [2021-11-20 05:58:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154334 to 124783. [2021-11-20 05:58:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124783 states, 100337 states have (on average 1.4373361770832296) internal successors, (144218), 101425 states have internal predecessors, (144218), 18572 states have call successors, (18572), 5438 states have call predecessors, (18572), 5873 states have return successors, (20205), 18607 states have call predecessors, (20205), 18571 states have call successors, (20205) [2021-11-20 05:58:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124783 states to 124783 states and 182995 transitions. [2021-11-20 05:58:46,614 INFO L78 Accepts]: Start accepts. Automaton has 124783 states and 182995 transitions. Word has length 544 [2021-11-20 05:58:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:58:46,615 INFO L470 AbstractCegarLoop]: Abstraction has 124783 states and 182995 transitions. [2021-11-20 05:58:46,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.384615384615385) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (78), 5 states have call predecessors, (78), 4 states have return successors, (77), 5 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-20 05:58:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 124783 states and 182995 transitions. [2021-11-20 05:58:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-20 05:58:46,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:58:46,652 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:58:46,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:58:46,652 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:58:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:58:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1942982147, now seen corresponding path program 1 times [2021-11-20 05:58:46,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:58:46,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783233224] [2021-11-20 05:58:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:58:46,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:58:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:58:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:58:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:58:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:58:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:58:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 05:58:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 05:58:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 05:58:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:58:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 05:58:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:58:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:58:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 05:58:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:58:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 05:58:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 05:58:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 05:58:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 05:58:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 05:58:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 05:58:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 05:58:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:58:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:58:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:58:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:58:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:58:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 05:58:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 05:58:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 05:58:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:58:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:58:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 05:58:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:58:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 05:58:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:58:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 05:58:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 05:58:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 05:58:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:47,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 05:58:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 05:58:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 05:58:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 05:58:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 05:58:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:58:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 05:58:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 05:58:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 05:58:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 05:58:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:58:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 05:58:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:58:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 05:58:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 05:58:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 05:58:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 05:58:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 05:58:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 05:58:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 05:58:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 05:58:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 05:58:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:58:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 05:58:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 05:58:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 05:58:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:58:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 05:58:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 05:58:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 05:58:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 05:58:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 05:58:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 05:58:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-20 05:58:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:58:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 05:58:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:49,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:58:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 05:58:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 05:58:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:58:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2021-11-20 05:58:49,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:58:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783233224] [2021-11-20 05:58:49,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783233224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:58:49,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:58:49,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 05:58:49,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508008096] [2021-11-20 05:58:49,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:58:49,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 05:58:49,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:58:49,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 05:58:49,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:58:49,592 INFO L87 Difference]: Start difference. First operand 124783 states and 182995 transitions. Second operand has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (78), 6 states have call predecessors, (78), 3 states have return successors, (77), 3 states have call predecessors, (77), 4 states have call successors, (77) [2021-11-20 05:58:51,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:09,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:20,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:22,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:25,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:27,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:29,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:31,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:33,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:36,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:38,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:45,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:48,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:59:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:59:58,889 INFO L93 Difference]: Finished difference Result 278763 states and 414313 transitions. [2021-11-20 05:59:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:59:58,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (78), 6 states have call predecessors, (78), 3 states have return successors, (77), 3 states have call predecessors, (77), 4 states have call successors, (77) Word has length 543 [2021-11-20 05:59:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:59:59,503 INFO L225 Difference]: With dead ends: 278763 [2021-11-20 05:59:59,503 INFO L226 Difference]: Without dead ends: 154090 [2021-11-20 06:00:00,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:00:00,042 INFO L933 BasicCegarLoop]: 2031 mSDtfsCounter, 1059 mSDsluCounter, 11479 mSDsCounter, 0 mSdLazyCounter, 5214 mSolverCounterSat, 538 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 13510 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 5214 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:00:00,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 13510 Invalid, 5764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [538 Valid, 5214 Invalid, 12 Unknown, 0 Unchecked, 62.6s Time] [2021-11-20 06:00:00,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154090 states. [2021-11-20 06:00:04,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154090 to 127835. [2021-11-20 06:00:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127835 states, 102677 states have (on average 1.4377708737107628) internal successors, (147626), 103717 states have internal predecessors, (147626), 19316 states have call successors, (19316), 5438 states have call predecessors, (19316), 5841 states have return successors, (21035), 19367 states have call predecessors, (21035), 19315 states have call successors, (21035) [2021-11-20 06:00:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127835 states to 127835 states and 187977 transitions. [2021-11-20 06:00:05,824 INFO L78 Accepts]: Start accepts. Automaton has 127835 states and 187977 transitions. Word has length 543 [2021-11-20 06:00:05,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:00:05,828 INFO L470 AbstractCegarLoop]: Abstraction has 127835 states and 187977 transitions. [2021-11-20 06:00:05,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (78), 6 states have call predecessors, (78), 3 states have return successors, (77), 3 states have call predecessors, (77), 4 states have call successors, (77) [2021-11-20 06:00:05,828 INFO L276 IsEmpty]: Start isEmpty. Operand 127835 states and 187977 transitions. [2021-11-20 06:00:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2021-11-20 06:00:05,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:00:05,874 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 67, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:00:05,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:00:05,874 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:00:05,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:00:05,875 INFO L85 PathProgramCache]: Analyzing trace with hash 705387594, now seen corresponding path program 1 times [2021-11-20 06:00:05,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:00:05,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224739859] [2021-11-20 06:00:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:05,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:00:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:00:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:06,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:00:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:00:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:00:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 06:00:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:00:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 06:00:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-20 06:00:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:00:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 06:00:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:00:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:00:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:00:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 06:00:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 06:00:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:00:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 06:00:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 06:00:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 06:00:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 06:00:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 06:00:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 06:00:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 06:00:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 06:00:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 06:00:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 06:00:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 06:00:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 06:00:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 06:00:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 06:00:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 06:00:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 06:00:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 06:00:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 06:00:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 06:00:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 06:00:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 06:00:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-20 06:00:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 06:00:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 06:00:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-20 06:00:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 06:00:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 06:00:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 06:00:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-20 06:00:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-20 06:00:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-20 06:00:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-20 06:00:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 06:00:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-20 06:00:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 06:00:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-20 06:00:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-20 06:00:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-20 06:00:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-20 06:00:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-20 06:00:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-20 06:00:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-20 06:00:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 06:00:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 06:00:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 06:00:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-20 06:00:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-20 06:00:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-20 06:00:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 06:00:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-20 06:00:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-20 06:00:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-20 06:00:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-20 06:00:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-20 06:00:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:07,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-20 06:00:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-20 06:00:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:00:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:00:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:00:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:00:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 06:00:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:00:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 130 proven. 30 refuted. 0 times theorem prover too weak. 9002 trivial. 0 not checked. [2021-11-20 06:00:08,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:00:08,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224739859] [2021-11-20 06:00:08,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224739859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:00:08,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378939732] [2021-11-20 06:00:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:00:08,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:00:08,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:00:08,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:00:08,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_550f60bd-6a61-4474-bb0a-f9384a7d9ca0/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:00:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:00:19,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 6314 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:00:19,494 INFO L286 TraceCheckSpWp]: Computing forward predicates...