./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.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_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/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_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/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_105400be-341f-49e0-9521-cd88a9c9642f/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 b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:35:31,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:35:31,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:35:31,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:35:31,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:35:31,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:35:31,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:35:31,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:35:31,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:35:31,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:35:31,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:35:31,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:35:31,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:35:31,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:35:31,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:35:31,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:35:31,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:35:31,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:35:31,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:35:31,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:35:31,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:35:31,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:35:31,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:35:31,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:35:31,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:35:31,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:35:31,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:35:31,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:35:31,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:35:31,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:35:31,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:35:31,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:35:31,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:35:31,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:35:31,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:35:31,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:35:31,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:35:31,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:35:31,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:35:31,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:35:31,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:35:31,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:35:31,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:35:31,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:35:31,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:35:31,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:35:31,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:35:31,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:35:31,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:35:31,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:35:31,934 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:35:31,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:35:31,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:35:31,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:35:31,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:35:31,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:35:31,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:35:31,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:35:31,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:35:31,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:35:31,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:35:31,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:35:31,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:35:31,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:31,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:35:31,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:35:31,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:35:31,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:35:31,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:35:31,939 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:35:31,940 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:35:31,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:35:31,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:35:31,940 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_105400be-341f-49e0-9521-cd88a9c9642f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd [2021-11-20 07:35:32,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:35:32,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:35:32,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:35:32,225 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:35:32,226 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:35:32,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-20 07:35:32,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/data/76512a1db/a443a59ce5334bbbadb77349b4f4a327/FLAG4c9ae1d6f [2021-11-20 07:35:33,507 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:35:33,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-20 07:35:33,601 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/data/76512a1db/a443a59ce5334bbbadb77349b4f4a327/FLAG4c9ae1d6f [2021-11-20 07:35:33,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/data/76512a1db/a443a59ce5334bbbadb77349b4f4a327 [2021-11-20 07:35:33,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:35:33,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:35:33,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:33,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:35:33,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:35:33,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:33" (1/1) ... [2021-11-20 07:35:33,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c52703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:33, skipping insertion in model container [2021-11-20 07:35:33,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:33" (1/1) ... [2021-11-20 07:35:33,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:35:34,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:35:43,977 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_105400be-341f-49e0-9521-cd88a9c9642f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-11-20 07:35:44,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:44,702 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:35:45,670 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_105400be-341f-49e0-9521-cd88a9c9642f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-11-20 07:35:45,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:46,099 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:35:46,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46 WrapperNode [2021-11-20 07:35:46,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:46,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:46,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:35:46,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:35:46,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:46,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:46,935 INFO L137 Inliner]: procedures = 905, calls = 9946, calls flagged for inlining = 323, calls inlined = 188, statements flattened = 12629 [2021-11-20 07:35:46,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:46,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:35:46,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:35:46,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:35:46,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:46,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:35:47,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:35:47,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:35:47,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:35:47,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (1/1) ... [2021-11-20 07:35:47,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:47,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:47,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:47,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_105400be-341f-49e0-9521-cd88a9c9642f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:35:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM_page [2021-11-20 07:35:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM_page [2021-11-20 07:35:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 07:35:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2021-11-20 07:35:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2021-11-20 07:35:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_status_to_errno [2021-11-20 07:35:47,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_status_to_errno [2021-11-20 07:35:47,756 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icms [2021-11-20 07:35:47,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icms [2021-11-20 07:35:47,756 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 07:35:47,756 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 07:35:47,756 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 07:35:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 07:35:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 07:35:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 07:35:47,757 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_key [2021-11-20 07:35:47,757 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_key [2021-11-20 07:35:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure key_to_hw_index [2021-11-20 07:35:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure key_to_hw_index [2021-11-20 07:35:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 07:35:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 07:35:47,758 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-20 07:35:47,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-20 07:35:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 07:35:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 07:35:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_icm [2021-11-20 07:35:47,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_icm [2021-11-20 07:35:47,759 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 07:35:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 07:35:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uarc_virt [2021-11-20 07:35:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uarc_virt [2021-11-20 07:35:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2021-11-20 07:35:47,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2021-11-20 07:35:47,760 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 07:35:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 07:35:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_ah [2021-11-20 07:35:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_ah [2021-11-20 07:35:47,761 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 07:35:47,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 07:35:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_zero [2021-11-20 07:35:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_zero [2021-11-20 07:35:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_cleanup [2021-11-20 07:35:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_cleanup [2021-11-20 07:35:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_device [2021-11-20 07:35:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_device [2021-11-20 07:35:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 07:35:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 07:35:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure ib_query_port [2021-11-20 07:35:47,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_query_port [2021-11-20 07:35:47,763 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_region [2021-11-20 07:35:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_region [2021-11-20 07:35:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 07:35:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 07:35:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-11-20 07:35:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-11-20 07:35:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_pcie_cap [2021-11-20 07:35:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_pcie_cap [2021-11-20 07:35:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CLOSE_IB [2021-11-20 07:35:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CLOSE_IB [2021-11-20 07:35:47,765 INFO L130 BoogieDeclarations]: Found specification of procedure clear_page [2021-11-20 07:35:47,765 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_page [2021-11-20 07:35:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_alloc [2021-11-20 07:35:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_alloc [2021-11-20 07:35:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:35:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_init_one [2021-11-20 07:35:47,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_init_one [2021-11-20 07:35:47,766 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_create_eq [2021-11-20 07:35:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_create_eq [2021-11-20 07:35:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt [2021-11-20 07:35:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt [2021-11-20 07:35:47,767 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm_table [2021-11-20 07:35:47,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm_table [2021-11-20 07:35:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_catas_cleanup [2021-11-20 07:35:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_catas_cleanup [2021-11-20 07:35:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure hw_index_to_key [2021-11-20 07:35:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_index_to_key [2021-11-20 07:35:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-20 07:35:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-20 07:35:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64_raw [2021-11-20 07:35:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64_raw [2021-11-20 07:35:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 07:35:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 07:35:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_use_polling [2021-11-20 07:35:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_use_polling [2021-11-20 07:35:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-20 07:35:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-20 07:35:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm_table [2021-11-20 07:35:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm_table [2021-11-20 07:35:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:35:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt_range [2021-11-20 07:35:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt_range [2021-11-20 07:35:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 07:35:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 07:35:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:35:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:35:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-20 07:35:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-20 07:35:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 07:35:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 07:35:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 07:35:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_free [2021-11-20 07:35:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_free [2021-11-20 07:35:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_cleanup [2021-11-20 07:35:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_cleanup [2021-11-20 07:35:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_eq_req_not [2021-11-20 07:35:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_eq_req_not [2021-11-20 07:35:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 07:35:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 07:35:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2021-11-20 07:35:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2021-11-20 07:35:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 07:35:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 07:35:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_cleanup [2021-11-20 07:35:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_cleanup [2021-11-20 07:35:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_eq_table [2021-11-20 07:35:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_eq_table [2021-11-20 07:35:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 07:35:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 07:35:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:35:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:35:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 07:35:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 07:35:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 07:35:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 07:35:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:35:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 07:35:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 07:35:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_av_table [2021-11-20 07:35:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_av_table [2021-11-20 07:35:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm [2021-11-20 07:35:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm [2021-11-20 07:35:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_alloc_mtt [2021-11-20 07:35:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_alloc_mtt [2021-11-20 07:35:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2021-11-20 07:35:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2021-11-20 07:35:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 07:35:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 07:35:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 07:35:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 07:35:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_is_memfree [2021-11-20 07:35:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_is_memfree [2021-11-20 07:35:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_eq_req_not [2021-11-20 07:35:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_eq_req_not [2021-11-20 07:35:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM [2021-11-20 07:35:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM [2021-11-20 07:35:47,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:35:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:35:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure set_eqe_hw [2021-11-20 07:35:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure set_eqe_hw [2021-11-20 07:35:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-20 07:35:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-20 07:35:47,781 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-20 07:35:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-20 07:35:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:35:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 07:35:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 07:35:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_update_rate [2021-11-20 07:35:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_update_rate [2021-11-20 07:35:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:35:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM [2021-11-20 07:35:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM [2021-11-20 07:35:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_init [2021-11-20 07:35:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_init [2021-11-20 07:35:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 07:35:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 07:35:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-20 07:35:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-20 07:35:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_uar_table [2021-11-20 07:35:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_uar_table [2021-11-20 07:35:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 07:35:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 07:35:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 07:35:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 07:35:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_addr [2021-11-20 07:35:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_addr [2021-11-20 07:35:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-20 07:35:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-20 07:35:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-20 07:35:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-20 07:35:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-20 07:35:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-20 07:35:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 07:35:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 07:35:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mtt [2021-11-20 07:35:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mtt [2021-11-20 07:35:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure go_bit [2021-11-20 07:35:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure go_bit [2021-11-20 07:35:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:35:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free [2021-11-20 07:35:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free [2021-11-20 07:35:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2021-11-20 07:35:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2021-11-20 07:35:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 07:35:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 07:35:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:35:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:35:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mthca_device_mutex [2021-11-20 07:35:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mthca_device_mutex [2021-11-20 07:35:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SW2HW_MPT [2021-11-20 07:35:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SW2HW_MPT [2021-11-20 07:35:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure pcie_capability_write_word [2021-11-20 07:35:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pcie_capability_write_word [2021-11-20 07:35:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_irqs [2021-11-20 07:35:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_irqs [2021-11-20 07:35:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mr_table [2021-11-20 07:35:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mr_table [2021-11-20 07:35:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure __be64_to_cpup [2021-11-20 07:35:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __be64_to_cpup [2021-11-20 07:35:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_GET [2021-11-20 07:35:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-20 07:35:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-11-20 07:35:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2021-11-20 07:35:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2021-11-20 07:35:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_notrans [2021-11-20 07:35:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_notrans [2021-11-20 07:35:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2021-11-20 07:35:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2021-11-20 07:35:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 07:35:47,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 07:35:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_put [2021-11-20 07:35:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_put [2021-11-20 07:35:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc [2021-11-20 07:35:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc [2021-11-20 07:35:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64 [2021-11-20 07:35:47,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64 [2021-11-20 07:35:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-20 07:35:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-20 07:35:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_imm [2021-11-20 07:35:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_imm [2021-11-20 07:35:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mcg_table [2021-11-20 07:35:47,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mcg_table [2021-11-20 07:35:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_qp_table [2021-11-20 07:35:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_qp_table [2021-11-20 07:35:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 07:35:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 07:35:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_device [2021-11-20 07:35:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_device [2021-11-20 07:35:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_mad_agent [2021-11-20 07:35:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_mad_agent [2021-11-20 07:35:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-20 07:35:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-20 07:35:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-20 07:35:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-20 07:35:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_INIT_HCA [2021-11-20 07:35:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_INIT_HCA [2021-11-20 07:35:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_hw_index_to_key [2021-11-20 07:35:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_hw_index_to_key [2021-11-20 07:35:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:35:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:35:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 07:35:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 07:35:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-11-20 07:35:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-11-20 07:35:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_cq_table [2021-11-20 07:35:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_cq_table [2021-11-20 07:35:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_cleanup [2021-11-20 07:35:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_cleanup [2021-11-20 07:35:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 07:35:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 07:35:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_close_hca [2021-11-20 07:35:47,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_close_hca [2021-11-20 07:35:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_EQ [2021-11-20 07:35:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_EQ [2021-11-20 07:35:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure down [2021-11-20 07:35:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2021-11-20 07:35:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-11-20 07:35:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-11-20 07:35:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAD_IFC [2021-11-20 07:35:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAD_IFC [2021-11-20 07:35:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_cmd [2021-11-20 07:35:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_cmd [2021-11-20 07:35:47,801 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-20 07:35:47,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-20 07:35:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:35:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2021-11-20 07:35:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2021-11-20 07:35:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_eq [2021-11-20 07:35:47,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_eq [2021-11-20 07:35:47,802 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_alloc [2021-11-20 07:35:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_alloc [2021-11-20 07:35:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mailbox [2021-11-20 07:35:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mailbox [2021-11-20 07:35:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 07:35:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 07:35:47,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-20 07:35:47,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-20 07:35:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:35:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_DISABLE_LAM [2021-11-20 07:35:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_DISABLE_LAM [2021-11-20 07:35:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 07:35:47,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 07:35:47,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:35:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-20 07:35:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-20 07:35:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_alloc [2021-11-20 07:35:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_alloc [2021-11-20 07:35:47,805 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_empty [2021-11-20 07:35:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_empty [2021-11-20 07:35:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mthca_device_mutex [2021-11-20 07:35:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mthca_device_mutex [2021-11-20 07:35:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_setup_hca [2021-11-20 07:35:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_setup_hca [2021-11-20 07:35:47,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:35:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:35:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc [2021-11-20 07:35:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc [2021-11-20 07:35:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CONF_SPECIAL_QP [2021-11-20 07:35:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CONF_SPECIAL_QP [2021-11-20 07:35:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_reg [2021-11-20 07:35:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_reg [2021-11-20 07:35:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_check_profile_val [2021-11-20 07:35:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_check_profile_val [2021-11-20 07:35:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_sg [2021-11-20 07:35:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_sg [2021-11-20 07:35:47,808 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_FA [2021-11-20 07:35:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_FA [2021-11-20 07:35:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_free [2021-11-20 07:35:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_free [2021-11-20 07:35:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-20 07:35:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-20 07:35:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt_size [2021-11-20 07:35:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt_size [2021-11-20 07:35:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure dma_get_cache_alignment [2021-11-20 07:35:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_get_cache_alignment [2021-11-20 07:35:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mr [2021-11-20 07:35:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mr [2021-11-20 07:35:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mailbox [2021-11-20 07:35:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mailbox [2021-11-20 07:35:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 07:35:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 07:35:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 07:35:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 07:35:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_dev_lim [2021-11-20 07:35:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_dev_lim [2021-11-20 07:35:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2021-11-20 07:35:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2021-11-20 07:35:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_hw_index_to_key [2021-11-20 07:35:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_hw_index_to_key [2021-11-20 07:35:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_QUERY_FW [2021-11-20 07:35:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_QUERY_FW [2021-11-20 07:35:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-11-20 07:35:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-11-20 07:35:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-20 07:35:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-20 07:35:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SYS_DIS [2021-11-20 07:35:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SYS_DIS [2021-11-20 07:35:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_init [2021-11-20 07:35:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_init [2021-11-20 07:35:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_box [2021-11-20 07:35:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_box [2021-11-20 07:35:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:35:47,814 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-11-20 07:35:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-11-20 07:35:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 07:35:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 07:35:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_make_profile [2021-11-20 07:35:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_make_profile [2021-11-20 07:35:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2021-11-20 07:35:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2021-11-20 07:35:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 07:35:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 07:35:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unregister_device [2021-11-20 07:35:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unregister_device [2021-11-20 07:35:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_key_to_hw_index [2021-11-20 07:35:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_key_to_hw_index [2021-11-20 07:35:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-11-20 07:35:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-11-20 07:35:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-20 07:35:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-20 07:35:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-20 07:35:47,817 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-20 07:35:47,817 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-20 07:35:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-20 07:35:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-20 07:35:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-20 07:35:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:35:47,818 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_find [2021-11-20 07:35:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_find [2021-11-20 07:35:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm [2021-11-20 07:35:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm [2021-11-20 07:35:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_size [2021-11-20 07:35:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_size [2021-11-20 07:35:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-20 07:35:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-20 07:35:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-20 07:35:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-20 07:35:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_srq_table [2021-11-20 07:35:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_srq_table [2021-11-20 07:35:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_poll [2021-11-20 07:35:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_poll [2021-11-20 07:35:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM_AUX [2021-11-20 07:35:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM_AUX [2021-11-20 07:35:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2021-11-20 07:35:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2021-11-20 07:35:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_wait [2021-11-20 07:35:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_wait [2021-11-20 07:35:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_phys [2021-11-20 07:35:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_phys [2021-11-20 07:35:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_sg [2021-11-20 07:35:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_sg [2021-11-20 07:35:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 07:35:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 07:35:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_eqe [2021-11-20 07:35:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eqe [2021-11-20 07:35:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure async_mask [2021-11-20 07:35:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mask [2021-11-20 07:35:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_init [2021-11-20 07:35:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_init [2021-11-20 07:35:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_free [2021-11-20 07:35:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_free [2021-11-20 07:35:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd [2021-11-20 07:35:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd [2021-11-20 07:35:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-20 07:35:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-20 07:35:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_get [2021-11-20 07:35:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_get [2021-11-20 07:35:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_remove_one [2021-11-20 07:35:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_remove_one [2021-11-20 07:35:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-20 07:35:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-20 07:35:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_pd_table [2021-11-20 07:35:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_pd_table [2021-11-20 07:35:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure init_query_mad [2021-11-20 07:35:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure init_query_mad [2021-11-20 07:35:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-11-20 07:35:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-11-20 07:35:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2021-11-20 07:35:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2021-11-20 07:35:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_post [2021-11-20 07:35:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_post [2021-11-20 07:35:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 07:35:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 07:35:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 07:35:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 07:35:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:35:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_regs [2021-11-20 07:35:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_regs [2021-11-20 07:35:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_PUT [2021-11-20 07:35:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt [2021-11-20 07:35:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt [2021-11-20 07:35:49,334 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:35:49,346 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:36:29,647 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:36:29,709 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:36:29,710 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:36:29,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:29 BoogieIcfgContainer [2021-11-20 07:36:29,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:36:29,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:36:29,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:36:29,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:36:29,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:35:33" (1/3) ... [2021-11-20 07:36:29,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f33c25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:36:29, skipping insertion in model container [2021-11-20 07:36:29,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:46" (2/3) ... [2021-11-20 07:36:29,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f33c25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:36:29, skipping insertion in model container [2021-11-20 07:36:29,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:29" (3/3) ... [2021-11-20 07:36:29,731 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-11-20 07:36:29,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:36:29,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:36:29,817 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:36:29,824 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 07:36:29,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:36:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 4985 states, 3560 states have (on average 1.3747191011235955) internal successors, (4894), 3629 states have internal predecessors, (4894), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) [2021-11-20 07:36:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:36:29,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:29,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:29,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:29,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:29,945 INFO L85 PathProgramCache]: Analyzing trace with hash -717393883, now seen corresponding path program 1 times [2021-11-20 07:36:29,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:29,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896185929] [2021-11-20 07:36:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:29,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:36:30,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:36:30,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896185929] [2021-11-20 07:36:30,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896185929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:36:30,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:36:30,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:36:30,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145489494] [2021-11-20 07:36:30,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:36:30,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:36:30,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:36:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:36:30,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:36:30,703 INFO L87 Difference]: Start difference. First operand has 4985 states, 3560 states have (on average 1.3747191011235955) internal successors, (4894), 3629 states have internal predecessors, (4894), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:36:31,396 INFO L93 Difference]: Finished difference Result 10089 states and 15078 transitions. [2021-11-20 07:36:31,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:36:31,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 07:36:31,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:36:31,472 INFO L225 Difference]: With dead ends: 10089 [2021-11-20 07:36:31,472 INFO L226 Difference]: Without dead ends: 5081 [2021-11-20 07:36:31,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:36:31,532 INFO L933 BasicCegarLoop]: 7283 mSDtfsCounter, 198 mSDsluCounter, 7256 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 14539 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:36:31,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 14539 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:36:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5081 states. [2021-11-20 07:36:32,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5081 to 5051. [2021-11-20 07:36:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 3610 states have (on average 1.3731301939058171) internal successors, (4957), 3678 states have internal predecessors, (4957), 1225 states have call successors, (1225), 216 states have call predecessors, (1225), 215 states have return successors, (1206), 1205 states have call predecessors, (1206), 1206 states have call successors, (1206) [2021-11-20 07:36:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 7388 transitions. [2021-11-20 07:36:32,114 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 7388 transitions. Word has length 18 [2021-11-20 07:36:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:36:32,114 INFO L470 AbstractCegarLoop]: Abstraction has 5051 states and 7388 transitions. [2021-11-20 07:36:32,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 7388 transitions. [2021-11-20 07:36:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-20 07:36:32,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:32,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:32,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:36:32,121 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:32,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:32,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1416412498, now seen corresponding path program 1 times [2021-11-20 07:36:32,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:32,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560776739] [2021-11-20 07:36:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:32,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:36:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:36:32,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:36:32,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560776739] [2021-11-20 07:36:32,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560776739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:36:32,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:36:32,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:36:32,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365343743] [2021-11-20 07:36:32,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:36:32,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:36:32,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:36:32,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:36:32,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:36:32,487 INFO L87 Difference]: Start difference. First operand 5051 states and 7388 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:36:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:36:33,180 INFO L93 Difference]: Finished difference Result 15033 states and 21994 transitions. [2021-11-20 07:36:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:36:33,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-11-20 07:36:33,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:36:33,279 INFO L225 Difference]: With dead ends: 15033 [2021-11-20 07:36:33,279 INFO L226 Difference]: Without dead ends: 9985 [2021-11-20 07:36:33,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:36:33,314 INFO L933 BasicCegarLoop]: 14253 mSDtfsCounter, 7171 mSDsluCounter, 7166 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7171 SdHoareTripleChecker+Valid, 21419 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:36:33,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7171 Valid, 21419 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:36:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2021-11-20 07:36:33,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9971. [2021-11-20 07:36:33,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9971 states, 7144 states have (on average 1.3722004479283314) internal successors, (9803), 7260 states have internal predecessors, (9803), 2403 states have call successors, (2403), 424 states have call predecessors, (2403), 423 states have return successors, (2384), 2384 states have call predecessors, (2384), 2384 states have call successors, (2384) [2021-11-20 07:36:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9971 states to 9971 states and 14590 transitions. [2021-11-20 07:36:33,969 INFO L78 Accepts]: Start accepts. Automaton has 9971 states and 14590 transitions. Word has length 21 [2021-11-20 07:36:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:36:33,969 INFO L470 AbstractCegarLoop]: Abstraction has 9971 states and 14590 transitions. [2021-11-20 07:36:33,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:36:33,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9971 states and 14590 transitions. [2021-11-20 07:36:33,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-20 07:36:33,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:33,975 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:36:33,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:36:33,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:33,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1846771227, now seen corresponding path program 1 times [2021-11-20 07:36:33,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:33,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546164022] [2021-11-20 07:36:33,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:33,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:36:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:36:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:36:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:36:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:36:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:36:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:36:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:36:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:36:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:36:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:36:34,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:36:34,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546164022] [2021-11-20 07:36:34,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546164022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:36:34,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:36:34,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:36:34,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538636434] [2021-11-20 07:36:34,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:36:34,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:36:34,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:36:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:36:34,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:36:34,833 INFO L87 Difference]: Start difference. First operand 9971 states and 14590 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 07:36:38,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:36:40,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:36:44,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:36:50,441 WARN L515 Checker$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 07:36:52,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:36:54,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:36:56,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:05,259 WARN L515 Checker$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 07:37:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:37:05,385 INFO L93 Difference]: Finished difference Result 20906 states and 30795 transitions. [2021-11-20 07:37:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:37:05,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2021-11-20 07:37:05,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:37:05,513 INFO L225 Difference]: With dead ends: 20906 [2021-11-20 07:37:05,513 INFO L226 Difference]: Without dead ends: 10938 [2021-11-20 07:37:05,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:37:05,576 INFO L933 BasicCegarLoop]: 6840 mSDtfsCounter, 7412 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 2353 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8244 SdHoareTripleChecker+Valid, 10011 SdHoareTripleChecker+Invalid, 4969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2353 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:37:05,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8244 Valid, 10011 Invalid, 4969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2353 Valid, 2609 Invalid, 7 Unknown, 0 Unchecked, 29.6s Time] [2021-11-20 07:37:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2021-11-20 07:37:06,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 9992. [2021-11-20 07:37:06,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9992 states, 7158 states have (on average 1.371193070690137) internal successors, (9815), 7274 states have internal predecessors, (9815), 2403 states have call successors, (2403), 431 states have call predecessors, (2403), 430 states have return successors, (2384), 2384 states have call predecessors, (2384), 2384 states have call successors, (2384) [2021-11-20 07:37:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9992 states to 9992 states and 14602 transitions. [2021-11-20 07:37:06,418 INFO L78 Accepts]: Start accepts. Automaton has 9992 states and 14602 transitions. Word has length 91 [2021-11-20 07:37:06,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:37:06,420 INFO L470 AbstractCegarLoop]: Abstraction has 9992 states and 14602 transitions. [2021-11-20 07:37:06,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 07:37:06,420 INFO L276 IsEmpty]: Start isEmpty. Operand 9992 states and 14602 transitions. [2021-11-20 07:37:06,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-20 07:37:06,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:37:06,427 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:06,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:37:06,427 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:37:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:37:06,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1627916509, now seen corresponding path program 1 times [2021-11-20 07:37:06,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:37:06,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762829579] [2021-11-20 07:37:06,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:37:06,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:37:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:37:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:37:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:37:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:37:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:37:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:37:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:37:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:37:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:37:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:37:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:37:07,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:37:07,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762829579] [2021-11-20 07:37:07,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762829579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:37:07,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:37:07,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:37:07,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701781215] [2021-11-20 07:37:07,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:37:07,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:37:07,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:37:07,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:37:07,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:37:07,057 INFO L87 Difference]: Start difference. First operand 9992 states and 14602 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:37:10,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:12,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:15,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:17,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:22,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:28,930 WARN L515 Checker$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 07:37:32,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:37:34,636 WARN L515 Checker$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 07:37:41,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:43,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:47,627 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 07:37:47,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:37:47,779 INFO L93 Difference]: Finished difference Result 21278 states and 31380 transitions. [2021-11-20 07:37:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:37:47,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-11-20 07:37:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:37:47,851 INFO L225 Difference]: With dead ends: 21278 [2021-11-20 07:37:47,851 INFO L226 Difference]: Without dead ends: 11289 [2021-11-20 07:37:47,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:37:47,890 INFO L933 BasicCegarLoop]: 7069 mSDtfsCounter, 1412 mSDsluCounter, 16087 mSDsCounter, 0 mSdLazyCounter, 4910 mSolverCounterSat, 1340 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 23156 SdHoareTripleChecker+Invalid, 6261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1340 IncrementalHoareTripleChecker+Valid, 4910 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:37:47,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1726 Valid, 23156 Invalid, 6261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1340 Valid, 4910 Invalid, 11 Unknown, 0 Unchecked, 40.0s Time] [2021-11-20 07:37:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11289 states. [2021-11-20 07:37:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11289 to 9996. [2021-11-20 07:37:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9996 states, 7162 states have (on average 1.3709857581681095) internal successors, (9819), 7278 states have internal predecessors, (9819), 2403 states have call successors, (2403), 431 states have call predecessors, (2403), 430 states have return successors, (2384), 2384 states have call predecessors, (2384), 2384 states have call successors, (2384) [2021-11-20 07:37:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9996 states to 9996 states and 14606 transitions. [2021-11-20 07:37:48,566 INFO L78 Accepts]: Start accepts. Automaton has 9996 states and 14606 transitions. Word has length 91 [2021-11-20 07:37:48,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:37:48,567 INFO L470 AbstractCegarLoop]: Abstraction has 9996 states and 14606 transitions. [2021-11-20 07:37:48,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:37:48,567 INFO L276 IsEmpty]: Start isEmpty. Operand 9996 states and 14606 transitions. [2021-11-20 07:37:48,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-20 07:37:48,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:37:48,571 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:48,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:37:48,572 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:37:48,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:37:48,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1234889499, now seen corresponding path program 1 times [2021-11-20 07:37:48,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:37:48,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542072634] [2021-11-20 07:37:48,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:37:48,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:37:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:37:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:37:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:48,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:37:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:37:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:37:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:37:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:37:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:37:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:37:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:37:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:37:49,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:37:49,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542072634] [2021-11-20 07:37:49,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542072634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:37:49,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:37:49,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:37:49,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657535730] [2021-11-20 07:37:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:37:49,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:37:49,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:37:49,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:37:49,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:37:49,130 INFO L87 Difference]: Start difference. First operand 9996 states and 14606 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:37:52,332 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 07:37:54,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:37:57,170 WARN L515 Checker$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 07:38:01,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:07,599 WARN L515 Checker$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 07:38:10,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:12,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:38:14,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:20,962 WARN L515 Checker$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 07:38:23,885 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 07:38:24,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:38:24,023 INFO L93 Difference]: Finished difference Result 12132 states and 17692 transitions. [2021-11-20 07:38:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:38:24,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-11-20 07:38:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:38:24,088 INFO L225 Difference]: With dead ends: 12132 [2021-11-20 07:38:24,088 INFO L226 Difference]: Without dead ends: 12103 [2021-11-20 07:38:24,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:38:24,097 INFO L933 BasicCegarLoop]: 7003 mSDtfsCounter, 7552 mSDsluCounter, 3706 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 2395 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8485 SdHoareTripleChecker+Valid, 10709 SdHoareTripleChecker+Invalid, 5600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2395 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:38:24,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8485 Valid, 10709 Invalid, 5600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2395 Valid, 3197 Invalid, 8 Unknown, 0 Unchecked, 34.4s Time] [2021-11-20 07:38:24,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12103 states. [2021-11-20 07:38:24,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12103 to 11142. [2021-11-20 07:38:24,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11142 states, 7910 states have (on average 1.3537294563843236) internal successors, (10708), 8042 states have internal predecessors, (10708), 2677 states have call successors, (2677), 555 states have call predecessors, (2677), 554 states have return successors, (2658), 2656 states have call predecessors, (2658), 2658 states have call successors, (2658) [2021-11-20 07:38:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11142 states to 11142 states and 16043 transitions. [2021-11-20 07:38:24,878 INFO L78 Accepts]: Start accepts. Automaton has 11142 states and 16043 transitions. Word has length 91 [2021-11-20 07:38:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:38:24,878 INFO L470 AbstractCegarLoop]: Abstraction has 11142 states and 16043 transitions. [2021-11-20 07:38:24,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:38:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 11142 states and 16043 transitions. [2021-11-20 07:38:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-20 07:38:24,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:38:24,884 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:24,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:38:24,885 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:38:24,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:38:24,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1177631197, now seen corresponding path program 1 times [2021-11-20 07:38:24,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:38:24,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192159509] [2021-11-20 07:38:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:38:24,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:38:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:38:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:38:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:38:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:38:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:38:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:38:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:38:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:38:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:38:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:38:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:38:25,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:38:25,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192159509] [2021-11-20 07:38:25,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192159509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:38:25,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:38:25,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:38:25,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832320189] [2021-11-20 07:38:25,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:38:25,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:38:25,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:38:25,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:38:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:38:25,422 INFO L87 Difference]: Start difference. First operand 11142 states and 16043 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:38:28,717 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 07:38:30,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:34,975 WARN L515 Checker$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 07:38:40,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:41,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:44,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:38:46,510 WARN L515 Checker$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 07:38:53,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:56,226 WARN L515 Checker$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 07:38:56,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:38:56,432 INFO L93 Difference]: Finished difference Result 12176 states and 17717 transitions. [2021-11-20 07:38:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:38:56,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-11-20 07:38:56,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:38:56,493 INFO L225 Difference]: With dead ends: 12176 [2021-11-20 07:38:56,494 INFO L226 Difference]: Without dead ends: 12173 [2021-11-20 07:38:56,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:38:56,503 INFO L933 BasicCegarLoop]: 6837 mSDtfsCounter, 7292 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 2291 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8129 SdHoareTripleChecker+Valid, 10103 SdHoareTripleChecker+Invalid, 4992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2291 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:38:56,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8129 Valid, 10103 Invalid, 4992 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2291 Valid, 2693 Invalid, 8 Unknown, 0 Unchecked, 30.5s Time] [2021-11-20 07:38:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12173 states. [2021-11-20 07:38:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12173 to 11229. [2021-11-20 07:38:57,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11229 states, 7972 states have (on average 1.3518564977420973) internal successors, (10777), 8103 states have internal predecessors, (10777), 2682 states have call successors, (2682), 575 states have call predecessors, (2682), 574 states have return successors, (2664), 2662 states have call predecessors, (2664), 2664 states have call successors, (2664) [2021-11-20 07:38:57,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11229 states to 11229 states and 16123 transitions. [2021-11-20 07:38:57,244 INFO L78 Accepts]: Start accepts. Automaton has 11229 states and 16123 transitions. Word has length 91 [2021-11-20 07:38:57,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:38:57,245 INFO L470 AbstractCegarLoop]: Abstraction has 11229 states and 16123 transitions. [2021-11-20 07:38:57,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:38:57,246 INFO L276 IsEmpty]: Start isEmpty. Operand 11229 states and 16123 transitions. [2021-11-20 07:38:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-20 07:38:57,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:38:57,250 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:57,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:38:57,251 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:38:57,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:38:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2146053021, now seen corresponding path program 1 times [2021-11-20 07:38:57,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:38:57,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864047107] [2021-11-20 07:38:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:38:57,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:38:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:38:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:38:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:38:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:38:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:38:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:38:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:38:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:38:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:38:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:38:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:38:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:38:57,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:38:57,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864047107] [2021-11-20 07:38:57,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864047107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:38:57,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:38:57,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:38:57,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455012321] [2021-11-20 07:38:57,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:38:57,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:38:57,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:38:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:38:57,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:38:57,761 INFO L87 Difference]: Start difference. First operand 11229 states and 16123 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:39:01,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:03,243 WARN L515 Checker$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 07:39:06,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:10,259 WARN L515 Checker$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 07:39:16,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:19,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:39:22,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:29,746 WARN L515 Checker$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 07:39:29,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:29,930 INFO L93 Difference]: Finished difference Result 12233 states and 17793 transitions. [2021-11-20 07:39:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:39:29,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 92 [2021-11-20 07:39:29,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:29,990 INFO L225 Difference]: With dead ends: 12233 [2021-11-20 07:39:29,990 INFO L226 Difference]: Without dead ends: 12230 [2021-11-20 07:39:29,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:29,998 INFO L933 BasicCegarLoop]: 6922 mSDtfsCounter, 7678 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 2476 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8610 SdHoareTripleChecker+Valid, 10460 SdHoareTripleChecker+Invalid, 5634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2476 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:29,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8610 Valid, 10460 Invalid, 5634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2476 Valid, 3150 Invalid, 8 Unknown, 0 Unchecked, 31.6s Time] [2021-11-20 07:39:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12230 states. [2021-11-20 07:39:30,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12230 to 11228. [2021-11-20 07:39:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11228 states, 7972 states have (on average 1.3517310587054692) internal successors, (10776), 8102 states have internal predecessors, (10776), 2681 states have call successors, (2681), 575 states have call predecessors, (2681), 574 states have return successors, (2664), 2662 states have call predecessors, (2664), 2664 states have call successors, (2664) [2021-11-20 07:39:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11228 states to 11228 states and 16121 transitions. [2021-11-20 07:39:30,688 INFO L78 Accepts]: Start accepts. Automaton has 11228 states and 16121 transitions. Word has length 92 [2021-11-20 07:39:30,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:30,689 INFO L470 AbstractCegarLoop]: Abstraction has 11228 states and 16121 transitions. [2021-11-20 07:39:30,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:39:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 11228 states and 16121 transitions. [2021-11-20 07:39:30,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 07:39:30,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:30,691 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:30,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:39:30,692 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:30,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2101053542, now seen corresponding path program 1 times [2021-11-20 07:39:30,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:39:30,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362924163] [2021-11-20 07:39:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:30,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:39:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:39:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:39:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:39:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:39:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:39:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:39:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:39:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:39:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:39:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:39:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:39:31,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:39:31,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362924163] [2021-11-20 07:39:31,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362924163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:31,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:31,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:39:31,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820156532] [2021-11-20 07:39:31,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:31,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:31,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:39:31,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:31,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:31,155 INFO L87 Difference]: Start difference. First operand 11228 states and 16121 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:39:34,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:36,810 WARN L515 Checker$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 07:39:39,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:43,744 WARN L515 Checker$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 07:39:48,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:52,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:39:54,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:02,862 WARN L515 Checker$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 07:40:05,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:07,920 WARN L515 Checker$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 07:40:13,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:15,950 WARN L515 Checker$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 07:40:18,188 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 07:40:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:18,342 INFO L93 Difference]: Finished difference Result 18320 states and 26396 transitions. [2021-11-20 07:40:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:40:18,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 93 [2021-11-20 07:40:18,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:18,530 INFO L225 Difference]: With dead ends: 18320 [2021-11-20 07:40:18,530 INFO L226 Difference]: Without dead ends: 18316 [2021-11-20 07:40:18,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:40:18,538 INFO L933 BasicCegarLoop]: 7439 mSDtfsCounter, 8353 mSDsluCounter, 6086 mSDsCounter, 0 mSdLazyCounter, 4255 mSolverCounterSat, 2963 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9375 SdHoareTripleChecker+Valid, 13525 SdHoareTripleChecker+Invalid, 7231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2963 IncrementalHoareTripleChecker+Valid, 4255 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:18,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9375 Valid, 13525 Invalid, 7231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2963 Valid, 4255 Invalid, 13 Unknown, 0 Unchecked, 46.2s Time] [2021-11-20 07:40:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18316 states. [2021-11-20 07:40:19,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18316 to 17152. [2021-11-20 07:40:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17152 states, 12092 states have (on average 1.3326166060205094) internal successors, (16114), 12366 states have internal predecessors, (16114), 4027 states have call successors, (4027), 1011 states have call predecessors, (4027), 1032 states have return successors, (4284), 3942 states have call predecessors, (4284), 4010 states have call successors, (4284) [2021-11-20 07:40:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17152 states to 17152 states and 24425 transitions. [2021-11-20 07:40:19,630 INFO L78 Accepts]: Start accepts. Automaton has 17152 states and 24425 transitions. Word has length 93 [2021-11-20 07:40:19,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:19,630 INFO L470 AbstractCegarLoop]: Abstraction has 17152 states and 24425 transitions. [2021-11-20 07:40:19,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:40:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 17152 states and 24425 transitions. [2021-11-20 07:40:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-20 07:40:19,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:19,633 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:19,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:40:19,633 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:40:19,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:19,634 INFO L85 PathProgramCache]: Analyzing trace with hash 706074560, now seen corresponding path program 1 times [2021-11-20 07:40:19,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:40:19,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452147049] [2021-11-20 07:40:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:40:19,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:40:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:40:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:19,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:40:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:19,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:40:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:40:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:40:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:40:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:20,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:40:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:40:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:40:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:40:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:40:20,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:40:20,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452147049] [2021-11-20 07:40:20,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452147049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:40:20,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:40:20,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:40:20,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968888405] [2021-11-20 07:40:20,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:40:20,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:40:20,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:40:20,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:40:20,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:40:20,113 INFO L87 Difference]: Start difference. First operand 17152 states and 24425 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:40:23,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:25,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:29,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:34,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:38,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:40:40,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:47,837 WARN L515 Checker$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 07:40:50,854 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 07:40:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:51,211 INFO L93 Difference]: Finished difference Result 18326 states and 26391 transitions. [2021-11-20 07:40:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:40:51,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 94 [2021-11-20 07:40:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:51,294 INFO L225 Difference]: With dead ends: 18326 [2021-11-20 07:40:51,294 INFO L226 Difference]: Without dead ends: 18323 [2021-11-20 07:40:51,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:40:51,303 INFO L933 BasicCegarLoop]: 6810 mSDtfsCounter, 7307 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 2297 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8142 SdHoareTripleChecker+Valid, 10076 SdHoareTripleChecker+Invalid, 4998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2297 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:51,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8142 Valid, 10076 Invalid, 4998 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2297 Valid, 2694 Invalid, 7 Unknown, 0 Unchecked, 30.3s Time] [2021-11-20 07:40:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18323 states. [2021-11-20 07:40:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18323 to 17039. [2021-11-20 07:40:52,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17039 states, 12008 states have (on average 1.3330279813457695) internal successors, (16007), 12279 states have internal predecessors, (16007), 4000 states have call successors, (4000), 1011 states have call predecessors, (4000), 1030 states have return successors, (4254), 3916 states have call predecessors, (4254), 3984 states have call successors, (4254) [2021-11-20 07:40:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17039 states to 17039 states and 24261 transitions. [2021-11-20 07:40:52,442 INFO L78 Accepts]: Start accepts. Automaton has 17039 states and 24261 transitions. Word has length 94 [2021-11-20 07:40:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:52,442 INFO L470 AbstractCegarLoop]: Abstraction has 17039 states and 24261 transitions. [2021-11-20 07:40:52,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:40:52,443 INFO L276 IsEmpty]: Start isEmpty. Operand 17039 states and 24261 transitions. [2021-11-20 07:40:52,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-20 07:40:52,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:52,444 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:52,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:40:52,445 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:40:52,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:52,445 INFO L85 PathProgramCache]: Analyzing trace with hash 411403945, now seen corresponding path program 1 times [2021-11-20 07:40:52,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:40:52,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719521038] [2021-11-20 07:40:52,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:40:52,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:40:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:40:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:40:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:40:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:40:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:40:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:40:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:40:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:40:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:40:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:40:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:40:52,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:40:52,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719521038] [2021-11-20 07:40:52,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719521038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:40:52,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:40:52,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:40:52,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357558994] [2021-11-20 07:40:52,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:40:52,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:40:52,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:40:52,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:40:52,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:40:52,896 INFO L87 Difference]: Start difference. First operand 17039 states and 24261 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:40:55,638 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 07:40:58,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:00,976 WARN L515 Checker$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 07:41:03,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:07,891 WARN L515 Checker$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 07:41:12,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:15,355 WARN L515 Checker$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 07:41:19,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:41:21,467 WARN L515 Checker$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 07:41:28,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:31,859 WARN L515 Checker$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 07:41:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:41:32,148 INFO L93 Difference]: Finished difference Result 18269 states and 26283 transitions. [2021-11-20 07:41:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:41:32,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 95 [2021-11-20 07:41:32,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:41:32,233 INFO L225 Difference]: With dead ends: 18269 [2021-11-20 07:41:32,234 INFO L226 Difference]: Without dead ends: 18265 [2021-11-20 07:41:32,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:41:32,245 INFO L933 BasicCegarLoop]: 6839 mSDtfsCounter, 1418 mSDsluCounter, 9142 mSDsCounter, 0 mSdLazyCounter, 3673 mSolverCounterSat, 1340 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 15981 SdHoareTripleChecker+Invalid, 5024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1340 IncrementalHoareTripleChecker+Valid, 3673 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:41:32,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1704 Valid, 15981 Invalid, 5024 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1340 Valid, 3673 Invalid, 11 Unknown, 0 Unchecked, 38.3s Time] [2021-11-20 07:41:32,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18265 states. [2021-11-20 07:41:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18265 to 17073. [2021-11-20 07:41:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17073 states, 12032 states have (on average 1.3319481382978724) internal successors, (16026), 12301 states have internal predecessors, (16026), 4000 states have call successors, (4000), 1021 states have call predecessors, (4000), 1040 states have return successors, (4256), 3918 states have call predecessors, (4256), 3986 states have call successors, (4256) [2021-11-20 07:41:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17073 states to 17073 states and 24282 transitions. [2021-11-20 07:41:33,487 INFO L78 Accepts]: Start accepts. Automaton has 17073 states and 24282 transitions. Word has length 95 [2021-11-20 07:41:33,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:41:33,488 INFO L470 AbstractCegarLoop]: Abstraction has 17073 states and 24282 transitions. [2021-11-20 07:41:33,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:41:33,488 INFO L276 IsEmpty]: Start isEmpty. Operand 17073 states and 24282 transitions. [2021-11-20 07:41:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-20 07:41:33,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:41:33,490 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:33,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:41:33,491 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:41:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:33,491 INFO L85 PathProgramCache]: Analyzing trace with hash -133445661, now seen corresponding path program 1 times [2021-11-20 07:41:33,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:33,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042712577] [2021-11-20 07:41:33,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:33,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:41:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:41:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:41:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:41:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:41:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:41:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:41:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:41:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:41:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:41:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:33,961 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:41:33,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:41:33,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042712577] [2021-11-20 07:41:33,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042712577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:41:33,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:41:33,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:41:33,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425475501] [2021-11-20 07:41:33,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:41:33,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:41:33,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:41:33,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:41:33,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:41:33,964 INFO L87 Difference]: Start difference. First operand 17073 states and 24282 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:41:36,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:39,328 WARN L515 Checker$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 07:41:43,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:48,931 WARN L515 Checker$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 07:41:52,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:42:00,162 WARN L515 Checker$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 07:42:03,184 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 07:42:03,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:03,572 INFO L93 Difference]: Finished difference Result 18287 states and 26308 transitions. [2021-11-20 07:42:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:03,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 96 [2021-11-20 07:42:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:03,625 INFO L225 Difference]: With dead ends: 18287 [2021-11-20 07:42:03,625 INFO L226 Difference]: Without dead ends: 18284 [2021-11-20 07:42:03,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:03,632 INFO L933 BasicCegarLoop]: 6809 mSDtfsCounter, 7293 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 2295 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8127 SdHoareTripleChecker+Valid, 10074 SdHoareTripleChecker+Invalid, 4996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2295 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:03,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8127 Valid, 10074 Invalid, 4996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2295 Valid, 2694 Invalid, 7 Unknown, 0 Unchecked, 28.6s Time] [2021-11-20 07:42:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18284 states. [2021-11-20 07:42:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18284 to 17072. [2021-11-20 07:42:04,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17072 states, 12032 states have (on average 1.3318650265957446) internal successors, (16025), 12300 states have internal predecessors, (16025), 3999 states have call successors, (3999), 1021 states have call predecessors, (3999), 1040 states have return successors, (4256), 3918 states have call predecessors, (4256), 3986 states have call successors, (4256) [2021-11-20 07:42:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17072 states to 17072 states and 24280 transitions. [2021-11-20 07:42:04,886 INFO L78 Accepts]: Start accepts. Automaton has 17072 states and 24280 transitions. Word has length 96 [2021-11-20 07:42:04,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:04,887 INFO L470 AbstractCegarLoop]: Abstraction has 17072 states and 24280 transitions. [2021-11-20 07:42:04,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:42:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 17072 states and 24280 transitions. [2021-11-20 07:42:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-20 07:42:04,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:04,889 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:04,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 07:42:04,890 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:04,890 INFO L85 PathProgramCache]: Analyzing trace with hash 156090604, now seen corresponding path program 1 times [2021-11-20 07:42:04,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:04,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987417082] [2021-11-20 07:42:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:04,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:42:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:42:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:42:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:42:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:42:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:42:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:42:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:42:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:42:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:42:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:42:05,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:05,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987417082] [2021-11-20 07:42:05,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987417082] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:05,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:05,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:05,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761003299] [2021-11-20 07:42:05,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:05,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:42:05,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:05,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:42:05,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:05,342 INFO L87 Difference]: Start difference. First operand 17072 states and 24280 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:42:08,363 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 07:42:10,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:15,247 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:20,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:24,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:42:26,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:33,771 WARN L515 Checker$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 07:42:36,850 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 07:42:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:37,263 INFO L93 Difference]: Finished difference Result 18286 states and 26306 transitions. [2021-11-20 07:42:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:42:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 97 [2021-11-20 07:42:37,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:37,311 INFO L225 Difference]: With dead ends: 18286 [2021-11-20 07:42:37,311 INFO L226 Difference]: Without dead ends: 18283 [2021-11-20 07:42:37,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:42:37,318 INFO L933 BasicCegarLoop]: 6810 mSDtfsCounter, 7288 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 2294 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8119 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 4991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2294 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:37,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8119 Valid, 10077 Invalid, 4991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2294 Valid, 2689 Invalid, 8 Unknown, 0 Unchecked, 30.8s Time] [2021-11-20 07:42:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18283 states. [2021-11-20 07:42:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18283 to 17071. [2021-11-20 07:42:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17071 states, 12032 states have (on average 1.331781914893617) internal successors, (16024), 12299 states have internal predecessors, (16024), 3998 states have call successors, (3998), 1021 states have call predecessors, (3998), 1040 states have return successors, (4256), 3918 states have call predecessors, (4256), 3986 states have call successors, (4256) [2021-11-20 07:42:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17071 states to 17071 states and 24278 transitions. [2021-11-20 07:42:38,304 INFO L78 Accepts]: Start accepts. Automaton has 17071 states and 24278 transitions. Word has length 97 [2021-11-20 07:42:38,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:38,304 INFO L470 AbstractCegarLoop]: Abstraction has 17071 states and 24278 transitions. [2021-11-20 07:42:38,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:42:38,305 INFO L276 IsEmpty]: Start isEmpty. Operand 17071 states and 24278 transitions. [2021-11-20 07:42:38,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 07:42:38,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:38,306 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:38,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 07:42:38,307 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:38,307 INFO L85 PathProgramCache]: Analyzing trace with hash 541785094, now seen corresponding path program 1 times [2021-11-20 07:42:38,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:38,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140711948] [2021-11-20 07:42:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:38,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:42:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:42:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:42:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:42:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:42:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:42:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:42:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:42:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:42:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:42:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:42:38,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:38,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140711948] [2021-11-20 07:42:38,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140711948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:38,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:38,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:42:38,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884283833] [2021-11-20 07:42:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:38,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:42:38,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:42:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:42:38,940 INFO L87 Difference]: Start difference. First operand 17071 states and 24278 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:42:42,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:44,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:49,123 WARN L515 Checker$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 07:42:54,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:42:58,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:43:00,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:08,323 WARN L515 Checker$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 07:43:11,400 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 07:43:11,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:11,748 INFO L93 Difference]: Finished difference Result 18285 states and 26304 transitions. [2021-11-20 07:43:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:43:11,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 98 [2021-11-20 07:43:11,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:11,798 INFO L225 Difference]: With dead ends: 18285 [2021-11-20 07:43:11,798 INFO L226 Difference]: Without dead ends: 18282 [2021-11-20 07:43:11,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:43:11,807 INFO L933 BasicCegarLoop]: 6815 mSDtfsCounter, 7275 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 2287 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8113 SdHoareTripleChecker+Valid, 10074 SdHoareTripleChecker+Invalid, 4984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:11,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8113 Valid, 10074 Invalid, 4984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2287 Valid, 2689 Invalid, 8 Unknown, 0 Unchecked, 31.7s Time] [2021-11-20 07:43:11,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18282 states. [2021-11-20 07:43:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18282 to 17070. [2021-11-20 07:43:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17070 states, 12032 states have (on average 1.3316988031914894) internal successors, (16023), 12298 states have internal predecessors, (16023), 3997 states have call successors, (3997), 1021 states have call predecessors, (3997), 1040 states have return successors, (4256), 3918 states have call predecessors, (4256), 3986 states have call successors, (4256) [2021-11-20 07:43:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17070 states to 17070 states and 24276 transitions. [2021-11-20 07:43:12,862 INFO L78 Accepts]: Start accepts. Automaton has 17070 states and 24276 transitions. Word has length 98 [2021-11-20 07:43:12,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:12,862 INFO L470 AbstractCegarLoop]: Abstraction has 17070 states and 24276 transitions. [2021-11-20 07:43:12,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:43:12,863 INFO L276 IsEmpty]: Start isEmpty. Operand 17070 states and 24276 transitions. [2021-11-20 07:43:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 07:43:12,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:12,865 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:12,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 07:43:12,866 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:43:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash -386582737, now seen corresponding path program 1 times [2021-11-20 07:43:12,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:43:12,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218126899] [2021-11-20 07:43:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:12,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:43:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:43:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:43:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:43:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:43:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:43:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:43:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:43:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:43:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:43:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:43:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:43:13,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:43:13,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218126899] [2021-11-20 07:43:13,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218126899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:13,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:13,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:43:13,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861574133] [2021-11-20 07:43:13,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:13,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:43:13,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:43:13,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:43:13,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:43:13,386 INFO L87 Difference]: Start difference. First operand 17070 states and 24276 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:43:16,458 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 07:43:18,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:21,907 WARN L515 Checker$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 07:43:25,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:28,976 WARN L515 Checker$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 07:43:35,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:37,877 WARN L515 Checker$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 07:43:40,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:43:42,858 WARN L515 Checker$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 07:43:49,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:56,124 WARN L515 Checker$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 07:44:00,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:02,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:07,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:10,008 WARN L515 Checker$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 07:44:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:10,323 INFO L93 Difference]: Finished difference Result 34900 states and 50600 transitions. [2021-11-20 07:44:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:44:10,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 99 [2021-11-20 07:44:10,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:10,429 INFO L225 Difference]: With dead ends: 34900 [2021-11-20 07:44:10,429 INFO L226 Difference]: Without dead ends: 34896 [2021-11-20 07:44:10,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:44:10,443 INFO L933 BasicCegarLoop]: 7943 mSDtfsCounter, 8435 mSDsluCounter, 9471 mSDsCounter, 0 mSdLazyCounter, 4964 mSolverCounterSat, 3578 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9520 SdHoareTripleChecker+Valid, 17414 SdHoareTripleChecker+Invalid, 8556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3578 IncrementalHoareTripleChecker+Valid, 4964 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:10,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9520 Valid, 17414 Invalid, 8556 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3578 Valid, 4964 Invalid, 14 Unknown, 0 Unchecked, 55.0s Time] [2021-11-20 07:44:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34896 states. [2021-11-20 07:44:12,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34896 to 32796. [2021-11-20 07:44:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32796 states, 23176 states have (on average 1.3342250604073178) internal successors, (30922), 23696 states have internal predecessors, (30922), 7673 states have call successors, (7673), 1897 states have call predecessors, (7673), 1946 states have return successors, (8426), 7516 states have call predecessors, (8426), 7662 states have call successors, (8426) [2021-11-20 07:44:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32796 states to 32796 states and 47021 transitions. [2021-11-20 07:44:12,453 INFO L78 Accepts]: Start accepts. Automaton has 32796 states and 47021 transitions. Word has length 99 [2021-11-20 07:44:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:12,454 INFO L470 AbstractCegarLoop]: Abstraction has 32796 states and 47021 transitions. [2021-11-20 07:44:12,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:44:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 32796 states and 47021 transitions. [2021-11-20 07:44:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 07:44:12,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:12,456 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:12,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 07:44:12,457 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:44:12,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:12,457 INFO L85 PathProgramCache]: Analyzing trace with hash 898790441, now seen corresponding path program 1 times [2021-11-20 07:44:12,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:12,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601626761] [2021-11-20 07:44:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:12,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:44:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:44:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:44:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:44:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:44:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:44:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:44:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:44:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:44:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:44:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:44:13,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601626761] [2021-11-20 07:44:13,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601626761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:13,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:13,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:44:13,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833115818] [2021-11-20 07:44:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:13,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:44:13,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:44:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:44:13,170 INFO L87 Difference]: Start difference. First operand 32796 states and 47021 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:44:16,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:18,812 WARN L515 Checker$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 07:44:23,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:28,819 WARN L515 Checker$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 07:44:32,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:44:34,856 WARN L515 Checker$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 07:44:42,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:45,443 WARN L515 Checker$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 07:44:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:46,391 INFO L93 Difference]: Finished difference Result 34904 states and 50577 transitions. [2021-11-20 07:44:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:44:46,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 100 [2021-11-20 07:44:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:46,507 INFO L225 Difference]: With dead ends: 34904 [2021-11-20 07:44:46,507 INFO L226 Difference]: Without dead ends: 34901 [2021-11-20 07:44:46,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:44:46,519 INFO L933 BasicCegarLoop]: 6808 mSDtfsCounter, 7282 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 2285 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8116 SdHoareTripleChecker+Valid, 10070 SdHoareTripleChecker+Invalid, 4985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2285 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:46,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8116 Valid, 10070 Invalid, 4985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2285 Valid, 2692 Invalid, 8 Unknown, 0 Unchecked, 31.4s Time] [2021-11-20 07:44:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34901 states. [2021-11-20 07:44:48,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34901 to 32771. [2021-11-20 07:44:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32771 states, 23160 states have (on average 1.3342400690846288) internal successors, (30901), 23679 states have internal predecessors, (30901), 7666 states have call successors, (7666), 1897 states have call predecessors, (7666), 1944 states have return successors, (8400), 7508 states have call predecessors, (8400), 7656 states have call successors, (8400) [2021-11-20 07:44:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32771 states to 32771 states and 46967 transitions. [2021-11-20 07:44:48,735 INFO L78 Accepts]: Start accepts. Automaton has 32771 states and 46967 transitions. Word has length 100 [2021-11-20 07:44:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:48,736 INFO L470 AbstractCegarLoop]: Abstraction has 32771 states and 46967 transitions. [2021-11-20 07:44:48,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:44:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 32771 states and 46967 transitions. [2021-11-20 07:44:48,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 07:44:48,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:48,738 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:48,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 07:44:48,739 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:44:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2090658162, now seen corresponding path program 1 times [2021-11-20 07:44:48,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:44:48,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310272851] [2021-11-20 07:44:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:48,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:44:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:44:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:44:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:44:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:44:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:44:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:44:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:44:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:44:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:44:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:44:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:44:49,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:44:49,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310272851] [2021-11-20 07:44:49,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310272851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:49,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:49,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:44:49,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790633946] [2021-11-20 07:44:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:49,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:44:49,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:44:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:44:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:44:49,185 INFO L87 Difference]: Start difference. First operand 32771 states and 46967 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:44:52,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:54,758 WARN L515 Checker$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 07:44:59,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:05,044 WARN L515 Checker$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 07:45:07,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:10,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:45:12,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:21,237 WARN L515 Checker$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 07:45:22,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:45:22,109 INFO L93 Difference]: Finished difference Result 35183 states and 50988 transitions. [2021-11-20 07:45:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:45:22,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 101 [2021-11-20 07:45:22,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:45:22,210 INFO L225 Difference]: With dead ends: 35183 [2021-11-20 07:45:22,210 INFO L226 Difference]: Without dead ends: 35180 [2021-11-20 07:45:22,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:45:22,223 INFO L933 BasicCegarLoop]: 6822 mSDtfsCounter, 7370 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 2342 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8198 SdHoareTripleChecker+Valid, 9987 SdHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2342 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:45:22,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8198 Valid, 9987 Invalid, 4958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2342 Valid, 2608 Invalid, 8 Unknown, 0 Unchecked, 31.1s Time] [2021-11-20 07:45:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35180 states. [2021-11-20 07:45:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35180 to 33046. [2021-11-20 07:45:23,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33046 states, 23360 states have (on average 1.3330479452054795) internal successors, (31140), 23882 states have internal predecessors, (31140), 7737 states have call successors, (7737), 1897 states have call predecessors, (7737), 1948 states have return successors, (8488), 7580 states have call predecessors, (8488), 7728 states have call successors, (8488) [2021-11-20 07:45:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33046 states to 33046 states and 47365 transitions. [2021-11-20 07:45:24,139 INFO L78 Accepts]: Start accepts. Automaton has 33046 states and 47365 transitions. Word has length 101 [2021-11-20 07:45:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:45:24,139 INFO L470 AbstractCegarLoop]: Abstraction has 33046 states and 47365 transitions. [2021-11-20 07:45:24,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:45:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand 33046 states and 47365 transitions. [2021-11-20 07:45:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 07:45:24,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:45:24,141 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:24,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 07:45:24,142 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:45:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash 383856716, now seen corresponding path program 1 times [2021-11-20 07:45:24,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:24,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509933553] [2021-11-20 07:45:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:24,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:45:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:45:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:45:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:45:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:45:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:45:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:45:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:45:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:45:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:45:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:45:24,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:24,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509933553] [2021-11-20 07:45:24,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509933553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:24,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:24,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:45:24,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905896107] [2021-11-20 07:45:24,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:24,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:45:24,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:24,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:45:24,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:45:24,564 INFO L87 Difference]: Start difference. First operand 33046 states and 47365 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:45:27,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:30,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:34,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:39,585 WARN L515 Checker$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 07:45:42,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:45:44,627 WARN L515 Checker$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 07:45:47,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:45:49,791 WARN L515 Checker$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 07:45:57,940 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 07:46:00,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:46:00,141 INFO L93 Difference]: Finished difference Result 35178 states and 50973 transitions. [2021-11-20 07:46:00,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:46:00,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 102 [2021-11-20 07:46:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:46:00,253 INFO L225 Difference]: With dead ends: 35178 [2021-11-20 07:46:00,254 INFO L226 Difference]: Without dead ends: 35175 [2021-11-20 07:46:00,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:46:00,267 INFO L933 BasicCegarLoop]: 6808 mSDtfsCounter, 7273 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 2281 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 10067 SdHoareTripleChecker+Invalid, 4983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2281 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:46:00,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8108 Valid, 10067 Invalid, 4983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2281 Valid, 2693 Invalid, 9 Unknown, 0 Unchecked, 33.6s Time] [2021-11-20 07:46:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35175 states. [2021-11-20 07:46:02,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35175 to 33045. [2021-11-20 07:46:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33045 states, 23360 states have (on average 1.3330051369863014) internal successors, (31139), 23881 states have internal predecessors, (31139), 7736 states have call successors, (7736), 1897 states have call predecessors, (7736), 1948 states have return successors, (8488), 7580 states have call predecessors, (8488), 7728 states have call successors, (8488) [2021-11-20 07:46:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33045 states to 33045 states and 47363 transitions. [2021-11-20 07:46:02,223 INFO L78 Accepts]: Start accepts. Automaton has 33045 states and 47363 transitions. Word has length 102 [2021-11-20 07:46:02,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:46:02,224 INFO L470 AbstractCegarLoop]: Abstraction has 33045 states and 47363 transitions. [2021-11-20 07:46:02,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:46:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 33045 states and 47363 transitions. [2021-11-20 07:46:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 07:46:02,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:46:02,225 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:02,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 07:46:02,226 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:46:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash -987375691, now seen corresponding path program 1 times [2021-11-20 07:46:02,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:02,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982578287] [2021-11-20 07:46:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:02,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:46:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:46:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:46:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:46:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:46:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:46:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:46:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:46:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:46:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:46:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-11-20 07:46:02,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:02,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982578287] [2021-11-20 07:46:02,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982578287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:46:02,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:46:02,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:46:02,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091923612] [2021-11-20 07:46:02,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:46:02,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:46:02,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:02,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:46:02,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:46:02,659 INFO L87 Difference]: Start difference. First operand 33045 states and 47363 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:46:05,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:08,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:11,315 WARN L515 Checker$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 07:46:16,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:22,804 WARN L515 Checker$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 07:46:27,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:46:29,323 WARN L515 Checker$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 07:46:37,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:41,036 WARN L515 Checker$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 07:46:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:46:42,017 INFO L93 Difference]: Finished difference Result 35167 states and 50949 transitions. [2021-11-20 07:46:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:46:42,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2021-11-20 07:46:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:46:42,126 INFO L225 Difference]: With dead ends: 35167 [2021-11-20 07:46:42,126 INFO L226 Difference]: Without dead ends: 35143 [2021-11-20 07:46:42,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:46:42,139 INFO L933 BasicCegarLoop]: 6864 mSDtfsCounter, 7520 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 2404 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8453 SdHoareTripleChecker+Valid, 10465 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2404 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:46:42,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8453 Valid, 10465 Invalid, 5585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2404 Valid, 3172 Invalid, 9 Unknown, 0 Unchecked, 37.1s Time] [2021-11-20 07:46:42,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35143 states. [2021-11-20 07:46:43,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35143 to 33023. [2021-11-20 07:46:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33023 states, 23341 states have (on average 1.3330191508504348) internal successors, (31114), 23861 states have internal predecessors, (31114), 7734 states have call successors, (7734), 1896 states have call predecessors, (7734), 1947 states have return successors, (8487), 7579 states have call predecessors, (8487), 7727 states have call successors, (8487) [2021-11-20 07:46:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33023 states to 33023 states and 47335 transitions. [2021-11-20 07:46:44,149 INFO L78 Accepts]: Start accepts. Automaton has 33023 states and 47335 transitions. Word has length 103 [2021-11-20 07:46:44,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:46:44,150 INFO L470 AbstractCegarLoop]: Abstraction has 33023 states and 47335 transitions. [2021-11-20 07:46:44,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 07:46:44,150 INFO L276 IsEmpty]: Start isEmpty. Operand 33023 states and 47335 transitions. [2021-11-20 07:46:44,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-20 07:46:44,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:46:44,153 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-20 07:46:44,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 07:46:44,153 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:46:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:44,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1221044297, now seen corresponding path program 1 times [2021-11-20 07:46:44,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:44,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494435127] [2021-11-20 07:46:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:44,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:46:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:46:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:46:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:46:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:46:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:46:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:46:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:46:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:46:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:46:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 07:46:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-20 07:46:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 07:46:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-20 07:46:44,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:44,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494435127] [2021-11-20 07:46:44,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494435127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:46:44,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:46:44,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:46:44,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732972756] [2021-11-20 07:46:44,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:46:44,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:46:44,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:44,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:46:44,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:46:44,651 INFO L87 Difference]: Start difference. First operand 33023 states and 47335 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 07:46:48,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:46:51,167 WARN L515 Checker$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 07:46:58,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:03,984 WARN L515 Checker$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 07:47:08,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:11,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:15,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 07:47:18,083 WARN L515 Checker$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 07:47:20,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:33,138 WARN L515 Checker$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 07:47:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:47:36,211 INFO L93 Difference]: Finished difference Result 35165 states and 50955 transitions. [2021-11-20 07:47:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:47:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2021-11-20 07:47:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:47:36,310 INFO L225 Difference]: With dead ends: 35165 [2021-11-20 07:47:36,310 INFO L226 Difference]: Without dead ends: 35162 [2021-11-20 07:47:36,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:47:36,326 INFO L933 BasicCegarLoop]: 5876 mSDtfsCounter, 10859 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 6811 mSolverCounterSat, 7005 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10890 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 13825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7005 IncrementalHoareTripleChecker+Valid, 6811 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:47:36,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10890 Valid, 6359 Invalid, 13825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7005 Valid, 6811 Invalid, 9 Unknown, 0 Unchecked, 49.4s Time] [2021-11-20 07:47:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35162 states. [2021-11-20 07:47:38,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35162 to 33022. [2021-11-20 07:47:38,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33022 states, 23341 states have (on average 1.3326764063236365) internal successors, (31106), 23860 states have internal predecessors, (31106), 7733 states have call successors, (7733), 1896 states have call predecessors, (7733), 1947 states have return successors, (8487), 7579 states have call predecessors, (8487), 7727 states have call successors, (8487) [2021-11-20 07:47:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33022 states to 33022 states and 47326 transitions. [2021-11-20 07:47:38,389 INFO L78 Accepts]: Start accepts. Automaton has 33022 states and 47326 transitions. Word has length 123 [2021-11-20 07:47:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:47:38,390 INFO L470 AbstractCegarLoop]: Abstraction has 33022 states and 47326 transitions. [2021-11-20 07:47:38,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 07:47:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 33022 states and 47326 transitions. [2021-11-20 07:47:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-20 07:47:38,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:47:38,395 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-11-20 07:47:38,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 07:47:38,396 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:47:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:47:38,396 INFO L85 PathProgramCache]: Analyzing trace with hash 974775979, now seen corresponding path program 1 times [2021-11-20 07:47:38,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:47:38,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126604362] [2021-11-20 07:47:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:47:38,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:47:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:47:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 07:47:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:47:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 07:47:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 07:47:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 07:47:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-20 07:47:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:47:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 07:47:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 07:47:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-20 07:47:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:47:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-20 07:47:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-20 07:47:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:47:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:47:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 07:47:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 07:47:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 07:47:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-20 07:47:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:47:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-20 07:47:39,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:47:39,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126604362] [2021-11-20 07:47:39,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126604362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:47:39,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:47:39,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:47:39,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897225688] [2021-11-20 07:47:39,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:47:39,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:47:39,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:47:39,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:47:39,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:47:39,209 INFO L87 Difference]: Start difference. First operand 33022 states and 47326 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:47:43,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:46,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:49,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:47:58,197 WARN L515 Checker$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 07:48:00,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:48:10,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []