./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:51:32,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:51:32,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:51:32,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:51:32,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:51:32,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:51:32,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:51:32,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:51:32,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:51:32,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:51:32,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:51:32,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:51:32,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:51:32,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:51:32,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:51:32,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:51:32,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:51:32,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:51:32,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:51:32,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:51:32,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:51:32,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:51:32,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:51:32,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:51:32,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:51:32,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:51:32,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:51:32,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:51:32,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:51:32,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:51:32,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:51:32,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:51:32,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:51:32,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:51:32,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:51:32,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:51:32,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:51:32,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:51:32,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:51:32,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:51:32,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:51:32,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:51:32,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:51:32,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:51:32,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:51:32,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:51:32,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:51:32,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:51:32,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:51:32,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:51:32,832 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:51:32,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:51:32,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:51:32,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:51:32,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:51:32,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:51:32,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:51:32,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:51:32,836 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:51:32,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:51:32,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:51:32,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:51:32,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:51:32,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:51:32,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:51:32,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:51:32,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:51:32,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:51:32,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:51:32,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:51:32,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:51:32,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:51:32,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:51:32,842 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_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5652ce767ff2e1bcbd3f583f8e33ee2c54a0e67349cc7d1c1f8d74e875d01c [2021-11-13 17:51:33,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:51:33,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:51:33,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:51:33,186 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:51:33,187 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:51:33,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2021-11-13 17:51:33,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/data/f5278e701/784688c621914c2ab502e6a851410db5/FLAGcccd17d3a [2021-11-13 17:51:34,729 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:51:34,731 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2021-11-13 17:51:34,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/data/f5278e701/784688c621914c2ab502e6a851410db5/FLAGcccd17d3a [2021-11-13 17:51:35,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/data/f5278e701/784688c621914c2ab502e6a851410db5 [2021-11-13 17:51:35,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:51:35,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:51:35,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:51:35,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:51:35,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:51:35,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:51:35" (1/1) ... [2021-11-13 17:51:35,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd5742b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:35, skipping insertion in model container [2021-11-13 17:51:35,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:51:35" (1/1) ... [2021-11-13 17:51:35,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:51:35,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:51:40,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2021-11-13 17:51:40,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:51:40,722 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:51:41,424 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i[418024,418037] [2021-11-13 17:51:41,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:51:41,857 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:51:41,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41 WrapperNode [2021-11-13 17:51:41,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:51:41,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:51:41,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:51:41,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:51:41,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:51:42,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:51:42,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:51:42,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:51:42,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:42,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:43,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:51:43,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:51:43,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:51:43,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:51:43,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (1/1) ... [2021-11-13 17:51:43,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:51:43,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:51:43,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:51:43,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:51:43,163 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-13 17:51:43,165 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-13 17:51:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 17:51:43,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 17:51:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2021-11-13 17:51:43,166 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2021-11-13 17:51:43,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 17:51:43,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 17:51:43,166 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2021-11-13 17:51:43,166 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2021-11-13 17:51:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-13 17:51:43,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-13 17:51:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 17:51:43,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 17:51:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-13 17:51:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-13 17:51:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:51:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:51:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2021-11-13 17:51:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2021-11-13 17:51:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-13 17:51:43,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-13 17:51:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_error_detected [2021-11-13 17:51:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_error_detected [2021-11-13 17:51:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_change_mtu [2021-11-13 17:51:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_change_mtu [2021-11-13 17:51:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-13 17:51:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-13 17:51:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 17:51:43,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 17:51:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 17:51:43,172 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 17:51:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-13 17:51:43,172 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-13 17:51:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 17:51:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 17:51:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2021-11-13 17:51:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2021-11-13 17:51:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2021-11-13 17:51:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2021-11-13 17:51:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 17:51:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 17:51:43,175 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2021-11-13 17:51:43,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2021-11-13 17:51:43,175 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 17:51:43,176 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 17:51:43,176 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 17:51:43,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 17:51:43,176 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 17:51:43,176 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 17:51:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 17:51:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 17:51:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2021-11-13 17:51:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2021-11-13 17:51:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 17:51:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 17:51:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-13 17:51:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-13 17:51:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:51:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-13 17:51:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-13 17:51:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2021-11-13 17:51:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2021-11-13 17:51:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-13 17:51:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-13 17:51:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2021-11-13 17:51:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2021-11-13 17:51:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 17:51:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 17:51:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 17:51:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 17:51:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-13 17:51:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-13 17:51:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:51:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2021-11-13 17:51:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2021-11-13 17:51:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 17:51:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 17:51:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-13 17:51:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-13 17:51:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2021-11-13 17:51:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2021-11-13 17:51:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:51:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_task [2021-11-13 17:51:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_task [2021-11-13 17:51:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:51:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 17:51:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 17:51:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-13 17:51:43,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-13 17:51:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:51:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:51:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-13 17:51:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-13 17:51:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-13 17:51:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-13 17:51:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 17:51:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 17:51:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2021-11-13 17:51:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2021-11-13 17:51:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 17:51:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 17:51:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-13 17:51:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-13 17:51:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2021-11-13 17:51:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2021-11-13 17:51:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 17:51:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 17:51:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:51:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2021-11-13 17:51:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2021-11-13 17:51:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-13 17:51:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-13 17:51:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_fix_features [2021-11-13 17:51:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_fix_features [2021-11-13 17:51:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 17:51:43,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 17:51:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:51:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 17:51:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-13 17:51:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-13 17:51:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2021-11-13 17:51:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2021-11-13 17:51:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-13 17:51:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-13 17:51:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2021-11-13 17:51:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2021-11-13 17:51:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 17:51:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 17:51:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 17:51:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 17:51:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 17:51:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 17:51:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2021-11-13 17:51:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2021-11-13 17:51:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_stats [2021-11-13 17:51:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_stats [2021-11-13 17:51:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-13 17:51:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-13 17:51:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 17:51:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 17:51:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-13 17:51:43,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-13 17:51:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2021-11-13 17:51:43,213 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2021-11-13 17:51:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-13 17:51:43,213 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-13 17:51:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-13 17:51:43,213 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-13 17:51:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:51:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:51:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-13 17:51:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-13 17:51:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 17:51:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 17:51:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:51:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:51:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 17:51:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 17:51:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 17:51:43,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-13 17:51:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 17:51:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 17:51:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 17:51:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 17:51:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2021-11-13 17:51:43,216 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2021-11-13 17:51:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-11-13 17:51:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-11-13 17:51:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:51:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:51:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 17:51:43,217 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 17:51:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-13 17:51:43,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-13 17:51:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-13 17:51:43,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-13 17:51:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_mac_addr [2021-11-13 17:51:43,218 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_mac_addr [2021-11-13 17:51:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 17:51:43,219 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 17:51:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:51:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:51:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2021-11-13 17:51:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2021-11-13 17:51:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 17:51:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 17:51:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 17:51:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 17:51:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 17:51:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 17:51:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-11-13 17:51:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-11-13 17:51:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:51:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 17:51:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 17:51:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-13 17:51:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-13 17:51:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 17:51:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 17:51:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2021-11-13 17:51:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2021-11-13 17:51:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:51:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2021-11-13 17:51:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2021-11-13 17:51:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2021-11-13 17:51:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2021-11-13 17:51:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-13 17:51:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-13 17:51:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-13 17:51:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-13 17:51:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2021-11-13 17:51:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2021-11-13 17:51:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:51:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-11-13 17:51:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-11-13 17:51:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2021-11-13 17:51:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2021-11-13 17:51:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 17:51:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 17:51:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-13 17:51:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-13 17:51:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-13 17:51:43,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-13 17:51:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-13 17:51:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-13 17:51:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 17:51:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 17:51:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 17:51:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 17:51:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-13 17:51:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-13 17:51:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_ioctl [2021-11-13 17:51:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_ioctl [2021-11-13 17:51:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_link_chg_task [2021-11-13 17:51:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_link_chg_task [2021-11-13 17:51:43,230 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2021-11-13 17:51:43,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2021-11-13 17:51:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2021-11-13 17:51:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2021-11-13 17:51:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2021-11-13 17:51:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2021-11-13 17:51:43,231 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 17:51:43,231 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 17:51:43,232 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-13 17:51:43,232 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-13 17:51:43,233 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 17:51:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 17:51:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2021-11-13 17:51:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2021-11-13 17:51:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-13 17:51:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-13 17:51:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2021-11-13 17:51:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2021-11-13 17:51:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:51:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:51:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:51:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_slot_reset [2021-11-13 17:51:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_slot_reset [2021-11-13 17:51:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2021-11-13 17:51:43,243 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2021-11-13 17:51:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:51:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:51:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2021-11-13 17:51:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2021-11-13 17:51:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2021-11-13 17:51:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2021-11-13 17:51:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 17:51:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 17:51:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-13 17:51:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-13 17:51:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 17:51:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 17:51:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_features [2021-11-13 17:51:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_features [2021-11-13 17:51:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-13 17:51:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-13 17:51:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2021-11-13 17:51:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2021-11-13 17:51:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-13 17:51:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-13 17:51:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-13 17:51:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-13 17:51:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_6 [2021-11-13 17:51:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_6 [2021-11-13 17:51:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 17:51:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 17:51:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-13 17:51:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-13 17:51:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2021-11-13 17:51:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2021-11-13 17:51:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 17:51:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 17:51:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 17:51:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 17:51:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2021-11-13 17:51:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2021-11-13 17:51:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-13 17:51:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-13 17:51:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-13 17:51:43,249 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-13 17:51:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 17:51:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 17:51:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:51:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-13 17:51:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-13 17:51:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2021-11-13 17:51:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2021-11-13 17:51:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2021-11-13 17:51:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2021-11-13 17:51:45,301 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 17:52:03,516 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:52:03,516 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:52:03,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:52:03 BoogieIcfgContainer [2021-11-13 17:52:03,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:52:03,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:52:03,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:52:03,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:52:03,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:51:35" (1/3) ... [2021-11-13 17:52:03,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a474046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:52:03, skipping insertion in model container [2021-11-13 17:52:03,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:51:41" (2/3) ... [2021-11-13 17:52:03,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a474046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:52:03, skipping insertion in model container [2021-11-13 17:52:03,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:52:03" (3/3) ... [2021-11-13 17:52:03,541 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--atl1e--atl1e.ko-entry_point.cil.out.i [2021-11-13 17:52:03,548 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:52:03,549 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:52:03,649 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:52:03,658 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:52:03,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:52:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 2730 states, 1872 states have (on average 1.3178418803418803) internal successors, (2467), 1910 states have internal predecessors, (2467), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) [2021-11-13 17:52:03,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-13 17:52:03,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:03,809 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:03,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:03,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1343496821, now seen corresponding path program 1 times [2021-11-13 17:52:03,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:03,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512518847] [2021-11-13 17:52:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:03,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:04,670 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:52:04,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365837924] [2021-11-13 17:52:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:04,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:52:04,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:52:04,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:52:04,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:52:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:06,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:52:06,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:52:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-11-13 17:52:07,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:52:07,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:07,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512518847] [2021-11-13 17:52:07,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:52:07,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365837924] [2021-11-13 17:52:07,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365837924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:07,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:07,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:52:07,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380944576] [2021-11-13 17:52:07,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:07,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:52:07,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:07,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:52:07,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:52:07,648 INFO L87 Difference]: Start difference. First operand has 2730 states, 1872 states have (on average 1.3178418803418803) internal successors, (2467), 1910 states have internal predecessors, (2467), 710 states have call successors, (710), 147 states have call predecessors, (710), 146 states have return successors, (699), 695 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 17:52:08,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:08,767 INFO L93 Difference]: Finished difference Result 7516 states and 10737 transitions. [2021-11-13 17:52:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:52:08,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2021-11-13 17:52:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:08,844 INFO L225 Difference]: With dead ends: 7516 [2021-11-13 17:52:08,845 INFO L226 Difference]: Without dead ends: 4738 [2021-11-13 17:52:08,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:52:08,879 INFO L933 BasicCegarLoop]: 4332 mSDtfsCounter, 2950 mSDsluCounter, 3696 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 361.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 8028 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 95.37ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 484.53ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:08,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2950 Valid, 8028 Invalid, 180 Unknown, 0 Unchecked, 95.37ms Time], IncrementalHoareTripleChecker [40 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 484.53ms Time] [2021-11-13 17:52:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2021-11-13 17:52:09,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 4688. [2021-11-13 17:52:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 3247 states have (on average 1.312596242685556) internal successors, (4262), 3296 states have internal predecessors, (4262), 1185 states have call successors, (1185), 257 states have call predecessors, (1185), 255 states have return successors, (1184), 1169 states have call predecessors, (1184), 1184 states have call successors, (1184) [2021-11-13 17:52:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 6631 transitions. [2021-11-13 17:52:09,407 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 6631 transitions. Word has length 175 [2021-11-13 17:52:09,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:09,409 INFO L470 AbstractCegarLoop]: Abstraction has 4688 states and 6631 transitions. [2021-11-13 17:52:09,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-13 17:52:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 6631 transitions. [2021-11-13 17:52:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-13 17:52:09,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:09,431 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:09,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:52:09,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-13 17:52:09,651 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:09,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1325061642, now seen corresponding path program 1 times [2021-11-13 17:52:09,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:09,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967186502] [2021-11-13 17:52:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:09,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:52:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:52:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:52:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:52:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:52:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:52:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 17:52:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 17:52:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-13 17:52:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 17:52:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 17:52:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-13 17:52:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-13 17:52:11,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:11,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967186502] [2021-11-13 17:52:11,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967186502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:11,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:11,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:52:11,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241403691] [2021-11-13 17:52:11,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:11,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:52:11,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:11,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:52:11,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:52:11,219 INFO L87 Difference]: Start difference. First operand 4688 states and 6631 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:52:13,315 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 [] [2021-11-13 17:52:19,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:26,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:28,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:30,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:35,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:37,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:40,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:52:40,786 INFO L93 Difference]: Finished difference Result 14594 states and 20907 transitions. [2021-11-13 17:52:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:52:40,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 251 [2021-11-13 17:52:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:52:40,938 INFO L225 Difference]: With dead ends: 14594 [2021-11-13 17:52:40,938 INFO L226 Difference]: Without dead ends: 9937 [2021-11-13 17:52:40,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:52:40,984 INFO L933 BasicCegarLoop]: 4047 mSDtfsCounter, 8187 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 5745 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25890.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8622 SdHoareTripleChecker+Valid, 8709 SdHoareTripleChecker+Invalid, 8861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 151.79ms SdHoareTripleChecker+Time, 5745 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28465.05ms IncrementalHoareTripleChecker+Time [2021-11-13 17:52:40,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8622 Valid, 8709 Invalid, 8861 Unknown, 0 Unchecked, 151.79ms Time], IncrementalHoareTripleChecker [5745 Valid, 3110 Invalid, 6 Unknown, 0 Unchecked, 28465.05ms Time] [2021-11-13 17:52:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9937 states. [2021-11-13 17:52:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9937 to 8702. [2021-11-13 17:52:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8702 states, 6035 states have (on average 1.3108533554266777) internal successors, (7911), 6129 states have internal predecessors, (7911), 2170 states have call successors, (2170), 499 states have call predecessors, (2170), 496 states have return successors, (2169), 2139 states have call predecessors, (2169), 2169 states have call successors, (2169) [2021-11-13 17:52:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 12250 transitions. [2021-11-13 17:52:41,999 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 12250 transitions. Word has length 251 [2021-11-13 17:52:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:52:42,002 INFO L470 AbstractCegarLoop]: Abstraction has 8702 states and 12250 transitions. [2021-11-13 17:52:42,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-13 17:52:42,004 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 12250 transitions. [2021-11-13 17:52:42,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-11-13 17:52:42,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:52:42,038 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:52:42,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:52:42,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:52:42,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:52:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1856672465, now seen corresponding path program 1 times [2021-11-13 17:52:42,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:52:42,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050988680] [2021-11-13 17:52:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:52:42,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:52:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:52:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:52:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:52:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:52:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:52:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:42,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:52:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:52:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:52:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:52:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:52:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 17:52:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:52:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:52:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:52:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 17:52:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 17:52:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-13 17:52:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-13 17:52:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-13 17:52:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-13 17:52:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-13 17:52:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:52:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:52:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-13 17:52:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:52:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-11-13 17:52:43,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:52:43,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050988680] [2021-11-13 17:52:43,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050988680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:52:43,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:52:43,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:52:43,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067320548] [2021-11-13 17:52:43,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:52:43,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:52:43,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:52:43,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:52:43,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:52:43,763 INFO L87 Difference]: Start difference. First operand 8702 states and 12250 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 17:52:45,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:47,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:55,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:52:59,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:10,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:10,287 INFO L93 Difference]: Finished difference Result 19284 states and 27850 transitions. [2021-11-13 17:53:10,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:53:10,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 358 [2021-11-13 17:53:10,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:10,476 INFO L225 Difference]: With dead ends: 19284 [2021-11-13 17:53:10,476 INFO L226 Difference]: Without dead ends: 19281 [2021-11-13 17:53:10,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:53:10,489 INFO L933 BasicCegarLoop]: 4385 mSDtfsCounter, 9736 mSDsluCounter, 6456 mSDsCounter, 0 mSdLazyCounter, 4409 mSolverCounterSat, 7734 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22669.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10255 SdHoareTripleChecker+Valid, 10841 SdHoareTripleChecker+Invalid, 12147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 137.40ms SdHoareTripleChecker+Time, 7734 IncrementalHoareTripleChecker+Valid, 4409 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25363.32ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:10,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10255 Valid, 10841 Invalid, 12147 Unknown, 0 Unchecked, 137.40ms Time], IncrementalHoareTripleChecker [7734 Valid, 4409 Invalid, 4 Unknown, 0 Unchecked, 25363.32ms Time] [2021-11-13 17:53:10,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2021-11-13 17:53:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 17182. [2021-11-13 17:53:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17182 states, 11958 states have (on average 1.3131794614484027) internal successors, (15703), 12128 states have internal predecessors, (15703), 4250 states have call successors, (4250), 968 states have call predecessors, (4250), 973 states have return successors, (4317), 4203 states have call predecessors, (4317), 4249 states have call successors, (4317) [2021-11-13 17:53:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17182 states to 17182 states and 24270 transitions. [2021-11-13 17:53:11,702 INFO L78 Accepts]: Start accepts. Automaton has 17182 states and 24270 transitions. Word has length 358 [2021-11-13 17:53:11,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:11,704 INFO L470 AbstractCegarLoop]: Abstraction has 17182 states and 24270 transitions. [2021-11-13 17:53:11,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 17:53:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 17182 states and 24270 transitions. [2021-11-13 17:53:11,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-11-13 17:53:11,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:11,785 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:11,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:53:11,786 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:53:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:11,786 INFO L85 PathProgramCache]: Analyzing trace with hash -437176915, now seen corresponding path program 1 times [2021-11-13 17:53:11,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:11,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716151588] [2021-11-13 17:53:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:11,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:53:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:53:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:53:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:53:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:53:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:53:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:53:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:53:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:53:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:53:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 17:53:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-13 17:53:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 17:53:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 17:53:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-13 17:53:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:12,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:53:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-13 17:53:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-13 17:53:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-13 17:53:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-13 17:53:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 17:53:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-13 17:53:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-13 17:53:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 17:53:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:53:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-13 17:53:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-13 17:53:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-13 17:53:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-13 17:53:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-13 17:53:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-13 17:53:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-13 17:53:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-13 17:53:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-13 17:53:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-13 17:53:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 17:53:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-13 17:53:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-13 17:53:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-13 17:53:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-11-13 17:53:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-11-13 17:53:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-11-13 17:53:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-13 17:53:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-11-13 17:53:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:13,615 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-13 17:53:13,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:13,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716151588] [2021-11-13 17:53:13,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716151588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:13,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:13,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:13,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116720720] [2021-11-13 17:53:13,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:13,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:53:13,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:13,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:53:13,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:53:13,619 INFO L87 Difference]: Start difference. First operand 17182 states and 24270 transitions. Second operand has 8 states, 8 states have (on average 29.375) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (53), 7 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-13 17:53:15,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:21,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:25,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:30,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:36,841 INFO L93 Difference]: Finished difference Result 51139 states and 73076 transitions. [2021-11-13 17:53:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:53:36,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (53), 7 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 475 [2021-11-13 17:53:36,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:37,231 INFO L225 Difference]: With dead ends: 51139 [2021-11-13 17:53:37,232 INFO L226 Difference]: Without dead ends: 33988 [2021-11-13 17:53:37,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:53:37,355 INFO L933 BasicCegarLoop]: 4781 mSDtfsCounter, 6103 mSDsluCounter, 7185 mSDsCounter, 0 mSdLazyCounter, 4929 mSolverCounterSat, 3693 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19708.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6753 SdHoareTripleChecker+Valid, 11966 SdHoareTripleChecker+Invalid, 8625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 95.44ms SdHoareTripleChecker+Time, 3693 IncrementalHoareTripleChecker+Valid, 4929 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21936.47ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:37,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6753 Valid, 11966 Invalid, 8625 Unknown, 0 Unchecked, 95.44ms Time], IncrementalHoareTripleChecker [3693 Valid, 4929 Invalid, 3 Unknown, 0 Unchecked, 21936.47ms Time] [2021-11-13 17:53:37,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33988 states. [2021-11-13 17:53:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33988 to 30196. [2021-11-13 17:53:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30196 states, 21043 states have (on average 1.3119327092144657) internal successors, (27607), 21319 states have internal predecessors, (27607), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1760 states have return successors, (7527), 7325 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-13 17:53:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30196 states to 30196 states and 42526 transitions. [2021-11-13 17:53:39,559 INFO L78 Accepts]: Start accepts. Automaton has 30196 states and 42526 transitions. Word has length 475 [2021-11-13 17:53:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:39,561 INFO L470 AbstractCegarLoop]: Abstraction has 30196 states and 42526 transitions. [2021-11-13 17:53:39,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (53), 7 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-13 17:53:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 30196 states and 42526 transitions. [2021-11-13 17:53:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-11-13 17:53:39,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:39,692 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:39,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:53:39,693 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:53:39,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash -494377388, now seen corresponding path program 1 times [2021-11-13 17:53:39,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:39,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850829620] [2021-11-13 17:53:39,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:39,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:53:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:53:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:53:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:53:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:53:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:53:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:53:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:53:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:53:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:53:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 17:53:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-13 17:53:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-13 17:53:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-13 17:53:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-13 17:53:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-13 17:53:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-13 17:53:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-13 17:53:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-13 17:53:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-13 17:53:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-13 17:53:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-13 17:53:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-13 17:53:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-13 17:53:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 17:53:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:53:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-13 17:53:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-13 17:53:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-13 17:53:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-13 17:53:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-13 17:53:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-13 17:53:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 17:53:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-13 17:53:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-13 17:53:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-13 17:53:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-13 17:53:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:53:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-13 17:53:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-13 17:53:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-11-13 17:53:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-11-13 17:53:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-13 17:53:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-13 17:53:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:53:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2021-11-13 17:53:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-11-13 17:53:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-13 17:53:41,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:41,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850829620] [2021-11-13 17:53:41,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850829620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:41,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:41,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:41,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511636161] [2021-11-13 17:53:41,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:41,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:53:41,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:41,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:53:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:53:41,446 INFO L87 Difference]: Start difference. First operand 30196 states and 42526 transitions. Second operand has 8 states, 8 states have (on average 31.75) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (54), 7 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-13 17:53:43,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:45,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:52,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:53:57,122 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:00,499 INFO L93 Difference]: Finished difference Result 64126 states and 91299 transitions. [2021-11-13 17:54:00,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:54:00,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.75) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (54), 7 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 510 [2021-11-13 17:54:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:00,699 INFO L225 Difference]: With dead ends: 64126 [2021-11-13 17:54:00,700 INFO L226 Difference]: Without dead ends: 33975 [2021-11-13 17:54:01,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:54:01,085 INFO L933 BasicCegarLoop]: 3549 mSDtfsCounter, 7733 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 5540 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16059.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8232 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 7747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.21ms SdHoareTripleChecker+Time, 5540 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17704.68ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:01,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8232 Valid, 6607 Invalid, 7747 Unknown, 0 Unchecked, 52.21ms Time], IncrementalHoareTripleChecker [5540 Valid, 2203 Invalid, 4 Unknown, 0 Unchecked, 17704.68ms Time] [2021-11-13 17:54:01,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33975 states. [2021-11-13 17:54:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33975 to 30172. [2021-11-13 17:54:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30172 states, 21019 states have (on average 1.3119082734668632) internal successors, (27575), 21299 states have internal predecessors, (27575), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1760 states have return successors, (7527), 7321 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-13 17:54:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30172 states to 30172 states and 42494 transitions. [2021-11-13 17:54:03,472 INFO L78 Accepts]: Start accepts. Automaton has 30172 states and 42494 transitions. Word has length 510 [2021-11-13 17:54:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:03,478 INFO L470 AbstractCegarLoop]: Abstraction has 30172 states and 42494 transitions. [2021-11-13 17:54:03,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.75) internal successors, (254), 3 states have internal predecessors, (254), 2 states have call successors, (54), 7 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-13 17:54:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 30172 states and 42494 transitions. [2021-11-13 17:54:03,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2021-11-13 17:54:03,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:03,596 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:03,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:54:03,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:54:03,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1753705096, now seen corresponding path program 1 times [2021-11-13 17:54:03,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:03,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129095875] [2021-11-13 17:54:03,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:03,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:54:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:54:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:54:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:54:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:54:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:54:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:54:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:54:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:54:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:54:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 17:54:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:54:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:54:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:54:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 17:54:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 17:54:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-13 17:54:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-13 17:54:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-13 17:54:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-13 17:54:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-13 17:54:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-13 17:54:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-13 17:54:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-13 17:54:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-13 17:54:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-13 17:54:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-13 17:54:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-11-13 17:54:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-13 17:54:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 17:54:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:54:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-13 17:54:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-13 17:54:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2021-11-13 17:54:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-11-13 17:54:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-11-13 17:54:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-13 17:54:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-11-13 17:54:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-11-13 17:54:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2021-11-13 17:54:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-11-13 17:54:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2021-11-13 17:54:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:54:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:05,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-13 17:54:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-11-13 17:54:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2021-11-13 17:54:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-13 17:54:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2021-11-13 17:54:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2021-11-13 17:54:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:54:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2021-11-13 17:54:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2021-11-13 17:54:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,127 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-13 17:54:06,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:06,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129095875] [2021-11-13 17:54:06,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129095875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:06,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:06,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:54:06,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728238216] [2021-11-13 17:54:06,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:06,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:06,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:06,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:06,134 INFO L87 Difference]: Start difference. First operand 30172 states and 42494 transitions. Second operand has 9 states, 9 states have (on average 29.0) internal successors, (261), 4 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-13 17:54:08,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:10,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:12,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:22,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:24,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:31,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:34,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:38,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:40,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:54:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:43,931 INFO L93 Difference]: Finished difference Result 65698 states and 93919 transitions. [2021-11-13 17:54:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:54:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.0) internal successors, (261), 4 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 582 [2021-11-13 17:54:43,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:44,125 INFO L225 Difference]: With dead ends: 65698 [2021-11-13 17:54:44,125 INFO L226 Difference]: Without dead ends: 35571 [2021-11-13 17:54:44,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:54:44,256 INFO L933 BasicCegarLoop]: 4567 mSDtfsCounter, 4836 mSDsluCounter, 11589 mSDsCounter, 0 mSdLazyCounter, 5842 mSolverCounterSat, 3436 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33459.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5091 SdHoareTripleChecker+Valid, 16156 SdHoareTripleChecker+Invalid, 9286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.82ms SdHoareTripleChecker+Time, 3436 IncrementalHoareTripleChecker+Valid, 5842 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36206.28ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:44,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5091 Valid, 16156 Invalid, 9286 Unknown, 0 Unchecked, 102.82ms Time], IncrementalHoareTripleChecker [3436 Valid, 5842 Invalid, 8 Unknown, 0 Unchecked, 36206.28ms Time] [2021-11-13 17:54:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35571 states. [2021-11-13 17:54:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35571 to 30172. [2021-11-13 17:54:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30172 states, 21019 states have (on average 1.3115276654455492) internal successors, (27567), 21299 states have internal predecessors, (27567), 7392 states have call successors, (7392), 1747 states have call predecessors, (7392), 1760 states have return successors, (7527), 7321 states have call predecessors, (7527), 7391 states have call successors, (7527) [2021-11-13 17:54:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30172 states to 30172 states and 42486 transitions. [2021-11-13 17:54:46,239 INFO L78 Accepts]: Start accepts. Automaton has 30172 states and 42486 transitions. Word has length 582 [2021-11-13 17:54:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:46,240 INFO L470 AbstractCegarLoop]: Abstraction has 30172 states and 42486 transitions. [2021-11-13 17:54:46,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.0) internal successors, (261), 4 states have internal predecessors, (261), 2 states have call successors, (59), 7 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-13 17:54:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 30172 states and 42486 transitions. [2021-11-13 17:54:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-11-13 17:54:46,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:46,327 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:46,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:54:46,327 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:54:46,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:46,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1763657867, now seen corresponding path program 1 times [2021-11-13 17:54:46,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:46,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340072943] [2021-11-13 17:54:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:46,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:46,810 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:54:46,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146996283] [2021-11-13 17:54:46,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:46,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:54:46,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:54:46,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:54:46,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:54:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:49,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 5976 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:54:49,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:54:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2021-11-13 17:54:50,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:54:50,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:50,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340072943] [2021-11-13 17:54:50,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:54:50,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146996283] [2021-11-13 17:54:50,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146996283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:50,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:50,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:54:50,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648111651] [2021-11-13 17:54:50,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:50,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:54:50,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:50,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:54:50,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:54:50,633 INFO L87 Difference]: Start difference. First operand 30172 states and 42486 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-13 17:54:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:51,853 INFO L93 Difference]: Finished difference Result 60491 states and 85638 transitions. [2021-11-13 17:54:51,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:54:51,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 609 [2021-11-13 17:54:51,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:52,006 INFO L225 Difference]: With dead ends: 60491 [2021-11-13 17:54:52,006 INFO L226 Difference]: Without dead ends: 30364 [2021-11-13 17:54:52,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:54:52,116 INFO L933 BasicCegarLoop]: 3823 mSDtfsCounter, 15 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7630 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.04ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.70ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:52,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 7630 Invalid, 10 Unknown, 0 Unchecked, 12.04ms Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 16.70ms Time] [2021-11-13 17:54:52,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30364 states. [2021-11-13 17:54:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30364 to 30268. [2021-11-13 17:54:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30268 states, 21099 states have (on average 1.311104791696289) internal successors, (27663), 21379 states have internal predecessors, (27663), 7408 states have call successors, (7408), 1747 states have call predecessors, (7408), 1760 states have return successors, (7543), 7337 states have call predecessors, (7543), 7407 states have call successors, (7543) [2021-11-13 17:54:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30268 states to 30268 states and 42614 transitions. [2021-11-13 17:54:54,050 INFO L78 Accepts]: Start accepts. Automaton has 30268 states and 42614 transitions. Word has length 609 [2021-11-13 17:54:54,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:54,052 INFO L470 AbstractCegarLoop]: Abstraction has 30268 states and 42614 transitions. [2021-11-13 17:54:54,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-13 17:54:54,052 INFO L276 IsEmpty]: Start isEmpty. Operand 30268 states and 42614 transitions. [2021-11-13 17:54:54,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2021-11-13 17:54:54,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:54,141 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:54,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:54:54,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:54:54,367 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:54:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 873911495, now seen corresponding path program 1 times [2021-11-13 17:54:54,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:54,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555586651] [2021-11-13 17:54:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:54,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:55,047 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:54:55,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937173161] [2021-11-13 17:54:55,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:55,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:54:55,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:54:55,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:54:55,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:54:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:57,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 5999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:54:57,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:54:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2021-11-13 17:54:58,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:54:58,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:58,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555586651] [2021-11-13 17:54:58,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:54:58,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937173161] [2021-11-13 17:54:58,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937173161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:58,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:58,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:54:58,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629980693] [2021-11-13 17:54:58,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:58,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:54:58,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:58,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:54:58,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:54:58,704 INFO L87 Difference]: Start difference. First operand 30268 states and 42614 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-13 17:55:00,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:00,701 INFO L93 Difference]: Finished difference Result 73850 states and 104085 transitions. [2021-11-13 17:55:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 616 [2021-11-13 17:55:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:01,099 INFO L225 Difference]: With dead ends: 73850 [2021-11-13 17:55:01,100 INFO L226 Difference]: Without dead ends: 43627 [2021-11-13 17:55:01,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:01,204 INFO L933 BasicCegarLoop]: 4315 mSDtfsCounter, 3057 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 253.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.97ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 306.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:01,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3057 Valid, 7931 Invalid, 180 Unknown, 0 Unchecked, 15.97ms Time], IncrementalHoareTripleChecker [51 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 306.50ms Time] [2021-11-13 17:55:01,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43627 states. [2021-11-13 17:55:03,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43627 to 43392. [2021-11-13 17:55:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43392 states, 30353 states have (on average 1.314202879451784) internal successors, (39890), 30759 states have internal predecessors, (39890), 10493 states have call successors, (10493), 2526 states have call predecessors, (10493), 2545 states have return successors, (10676), 10382 states have call predecessors, (10676), 10492 states have call successors, (10676) [2021-11-13 17:55:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43392 states to 43392 states and 61059 transitions. [2021-11-13 17:55:03,587 INFO L78 Accepts]: Start accepts. Automaton has 43392 states and 61059 transitions. Word has length 616 [2021-11-13 17:55:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:03,589 INFO L470 AbstractCegarLoop]: Abstraction has 43392 states and 61059 transitions. [2021-11-13 17:55:03,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-11-13 17:55:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 43392 states and 61059 transitions. [2021-11-13 17:55:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2021-11-13 17:55:03,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:03,679 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:03,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:03,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:03,880 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:55:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:03,880 INFO L85 PathProgramCache]: Analyzing trace with hash 728386406, now seen corresponding path program 1 times [2021-11-13 17:55:03,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:03,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030613119] [2021-11-13 17:55:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:03,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:04,733 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:04,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109138319] [2021-11-13 17:55:04,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:04,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:04,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:04,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:04,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 17:55:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:06,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 6060 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:55:06,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2021-11-13 17:55:08,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:55:08,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:08,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030613119] [2021-11-13 17:55:08,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:55:08,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109138319] [2021-11-13 17:55:08,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109138319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:08,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:08,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:08,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661181447] [2021-11-13 17:55:08,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:08,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:08,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:08,033 INFO L87 Difference]: Start difference. First operand 43392 states and 61059 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-13 17:55:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:10,862 INFO L93 Difference]: Finished difference Result 100470 states and 141473 transitions. [2021-11-13 17:55:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:10,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 640 [2021-11-13 17:55:10,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:11,133 INFO L225 Difference]: With dead ends: 100470 [2021-11-13 17:55:11,134 INFO L226 Difference]: Without dead ends: 57123 [2021-11-13 17:55:11,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:11,311 INFO L933 BasicCegarLoop]: 4300 mSDtfsCounter, 3245 mSDsluCounter, 3509 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 445.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 7809 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.68ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 493.25ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:11,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3245 Valid, 7809 Invalid, 181 Unknown, 0 Unchecked, 15.68ms Time], IncrementalHoareTripleChecker [64 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 493.25ms Time] [2021-11-13 17:55:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57123 states. [2021-11-13 17:55:14,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57123 to 56888. [2021-11-13 17:55:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56888 states, 39855 states have (on average 1.318153305733283) internal successors, (52535), 40403 states have internal predecessors, (52535), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13515 states have call predecessors, (13897), 13665 states have call successors, (13897) [2021-11-13 17:55:14,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56888 states to 56888 states and 80098 transitions. [2021-11-13 17:55:14,886 INFO L78 Accepts]: Start accepts. Automaton has 56888 states and 80098 transitions. Word has length 640 [2021-11-13 17:55:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:14,888 INFO L470 AbstractCegarLoop]: Abstraction has 56888 states and 80098 transitions. [2021-11-13 17:55:14,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-13 17:55:14,888 INFO L276 IsEmpty]: Start isEmpty. Operand 56888 states and 80098 transitions. [2021-11-13 17:55:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2021-11-13 17:55:15,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:15,009 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:15,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-13 17:55:15,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:15,223 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:55:15,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1771656934, now seen corresponding path program 1 times [2021-11-13 17:55:15,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:15,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521012481] [2021-11-13 17:55:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:15,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:15,604 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:55:15,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918385507] [2021-11-13 17:55:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:15,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:55:15,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:55:15,606 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:55:15,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 17:55:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:17,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 6166 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:55:17,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:55:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-11-13 17:55:19,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:55:19,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:19,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521012481] [2021-11-13 17:55:19,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:55:19,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918385507] [2021-11-13 17:55:19,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918385507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:19,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:19,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:19,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157687831] [2021-11-13 17:55:19,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:19,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:19,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:19,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:19,190 INFO L87 Difference]: Start difference. First operand 56888 states and 80098 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-13 17:55:21,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:24,195 INFO L93 Difference]: Finished difference Result 113966 states and 160416 transitions. [2021-11-13 17:55:24,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:24,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 670 [2021-11-13 17:55:24,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:24,577 INFO L225 Difference]: With dead ends: 113966 [2021-11-13 17:55:24,577 INFO L226 Difference]: Without dead ends: 57123 [2021-11-13 17:55:24,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:24,769 INFO L933 BasicCegarLoop]: 6808 mSDtfsCounter, 3540 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2272.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 10012 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.61ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2479.06ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:24,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3540 Valid, 10012 Invalid, 169 Unknown, 0 Unchecked, 18.61ms Time], IncrementalHoareTripleChecker [33 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 2479.06ms Time] [2021-11-13 17:55:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57123 states. [2021-11-13 17:55:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57123 to 56888. [2021-11-13 17:55:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56888 states, 39855 states have (on average 1.313536570066491) internal successors, (52351), 40403 states have internal predecessors, (52351), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13515 states have call predecessors, (13897), 13665 states have call successors, (13897) [2021-11-13 17:55:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56888 states to 56888 states and 79914 transitions. [2021-11-13 17:55:27,870 INFO L78 Accepts]: Start accepts. Automaton has 56888 states and 79914 transitions. Word has length 670 [2021-11-13 17:55:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:27,871 INFO L470 AbstractCegarLoop]: Abstraction has 56888 states and 79914 transitions. [2021-11-13 17:55:27,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-13 17:55:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 56888 states and 79914 transitions. [2021-11-13 17:55:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2021-11-13 17:55:27,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:27,990 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:28,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:55:28,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-13 17:55:28,195 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:55:28,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:28,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1893224617, now seen corresponding path program 1 times [2021-11-13 17:55:28,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:28,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680135689] [2021-11-13 17:55:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:28,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:28,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:55:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:28,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:55:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:55:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:55:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:55:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:55:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:55:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:55:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:55:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:55:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 17:55:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:55:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:55:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:55:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 17:55:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 17:55:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-13 17:55:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-13 17:55:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:29,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-13 17:55:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-13 17:55:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-13 17:55:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-13 17:55:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-13 17:55:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-13 17:55:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-13 17:55:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-13 17:55:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-13 17:55:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-13 17:55:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 17:55:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-13 17:55:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-13 17:55:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-13 17:55:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-13 17:55:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-13 17:55:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-11-13 17:55:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 17:55:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:55:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 17:55:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-11-13 17:55:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-11-13 17:55:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-11-13 17:55:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-13 17:55:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-13 17:55:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-11-13 17:55:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2021-11-13 17:55:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2021-11-13 17:55:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-13 17:55:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-11-13 17:55:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2021-11-13 17:55:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:55:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2021-11-13 17:55:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2021-11-13 17:55:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2021-11-13 17:55:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2021-11-13 17:55:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2021-11-13 17:55:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2021-11-13 17:55:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2021-11-13 17:55:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2021-11-13 17:55:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2021-11-13 17:55:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-11-13 17:55:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:55:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2021-11-13 17:55:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2021-11-13 17:55:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:55:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2021-11-13 17:55:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2021-11-13 17:55:30,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:30,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680135689] [2021-11-13 17:55:30,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680135689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:30,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:30,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:55:30,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281316880] [2021-11-13 17:55:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:30,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:55:30,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:30,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:55:30,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:55:30,957 INFO L87 Difference]: Start difference. First operand 56888 states and 79914 transitions. Second operand has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 4 states have internal predecessors, (311), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-13 17:55:33,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:42,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:48,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:55:53,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:00,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:56:00,622 INFO L93 Difference]: Finished difference Result 153770 states and 226213 transitions. [2021-11-13 17:56:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:56:00,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 4 states have internal predecessors, (311), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 692 [2021-11-13 17:56:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:56:01,082 INFO L225 Difference]: With dead ends: 153770 [2021-11-13 17:56:01,082 INFO L226 Difference]: Without dead ends: 96927 [2021-11-13 17:56:01,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:56:01,284 INFO L933 BasicCegarLoop]: 5058 mSDtfsCounter, 6091 mSDsluCounter, 12383 mSDsCounter, 0 mSdLazyCounter, 5530 mSolverCounterSat, 3935 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23051.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6717 SdHoareTripleChecker+Valid, 17441 SdHoareTripleChecker+Invalid, 9469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 120.49ms SdHoareTripleChecker+Time, 3935 IncrementalHoareTripleChecker+Valid, 5530 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25720.22ms IncrementalHoareTripleChecker+Time [2021-11-13 17:56:01,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6717 Valid, 17441 Invalid, 9469 Unknown, 0 Unchecked, 120.49ms Time], IncrementalHoareTripleChecker [3935 Valid, 5530 Invalid, 4 Unknown, 0 Unchecked, 25720.22ms Time] [2021-11-13 17:56:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96927 states. [2021-11-13 17:56:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96927 to 56920. [2021-11-13 17:56:04,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56920 states, 39887 states have (on average 1.3132850302103443) internal successors, (52383), 40435 states have internal predecessors, (52383), 13666 states have call successors, (13666), 3341 states have call predecessors, (13666), 3366 states have return successors, (13897), 13515 states have call predecessors, (13897), 13665 states have call successors, (13897) [2021-11-13 17:56:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56920 states to 56920 states and 79946 transitions. [2021-11-13 17:56:05,531 INFO L78 Accepts]: Start accepts. Automaton has 56920 states and 79946 transitions. Word has length 692 [2021-11-13 17:56:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:56:05,533 INFO L470 AbstractCegarLoop]: Abstraction has 56920 states and 79946 transitions. [2021-11-13 17:56:05,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 4 states have internal predecessors, (311), 2 states have call successors, (72), 7 states have call predecessors, (72), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-13 17:56:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 56920 states and 79946 transitions. [2021-11-13 17:56:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2021-11-13 17:56:05,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:56:05,704 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:56:05,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 17:56:05,705 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:56:05,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:56:05,706 INFO L85 PathProgramCache]: Analyzing trace with hash -98176589, now seen corresponding path program 1 times [2021-11-13 17:56:05,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:56:05,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848227592] [2021-11-13 17:56:05,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:56:05,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:56:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 17:56:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 17:56:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 17:56:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 17:56:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-13 17:56:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 17:56:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 17:56:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 17:56:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-13 17:56:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 17:56:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 17:56:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 17:56:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-13 17:56:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 17:56:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-13 17:56:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 17:56:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-13 17:56:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-13 17:56:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-13 17:56:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-13 17:56:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-13 17:56:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-13 17:56:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-13 17:56:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-13 17:56:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-13 17:56:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-13 17:56:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-13 17:56:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-13 17:56:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 17:56:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-13 17:56:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-13 17:56:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-13 17:56:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-13 17:56:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-13 17:56:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-11-13 17:56:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 17:56:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 17:56:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-13 17:56:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-11-13 17:56:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-11-13 17:56:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-11-13 17:56:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-13 17:56:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-13 17:56:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-11-13 17:56:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-13 17:56:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-11-13 17:56:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2021-11-13 17:56:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-11-13 17:56:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2021-11-13 17:56:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2021-11-13 17:56:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:56:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2021-11-13 17:56:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2021-11-13 17:56:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2021-11-13 17:56:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2021-11-13 17:56:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2021-11-13 17:56:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2021-11-13 17:56:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2021-11-13 17:56:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2021-11-13 17:56:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2021-11-13 17:56:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2021-11-13 17:56:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 17:56:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2021-11-13 17:56:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2021-11-13 17:56:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:08,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:56:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2021-11-13 17:56:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2021-11-13 17:56:08,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:56:08,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848227592] [2021-11-13 17:56:08,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848227592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:56:08,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:56:08,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:56:08,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584684088] [2021-11-13 17:56:08,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:56:08,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:56:08,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:56:08,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:56:08,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:56:08,038 INFO L87 Difference]: Start difference. First operand 56920 states and 79946 transitions. Second operand has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 4 states have internal predecessors, (323), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2021-11-13 17:56:10,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:12,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:14,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:23,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:27,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:29,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:36,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:51,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:55,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:56:57,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:57:05,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:57:05,974 INFO L93 Difference]: Finished difference Result 167355 states and 238139 transitions. [2021-11-13 17:57:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:57:05,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 4 states have internal predecessors, (323), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 699 [2021-11-13 17:57:05,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:57:06,512 INFO L225 Difference]: With dead ends: 167355 [2021-11-13 17:57:06,513 INFO L226 Difference]: Without dead ends: 110480 [2021-11-13 17:57:06,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:57:06,992 INFO L933 BasicCegarLoop]: 6320 mSDtfsCounter, 6090 mSDsluCounter, 18167 mSDsCounter, 0 mSdLazyCounter, 11484 mSolverCounterSat, 4483 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47795.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 24487 SdHoareTripleChecker+Invalid, 15976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 165.98ms SdHoareTripleChecker+Time, 4483 IncrementalHoareTripleChecker+Valid, 11484 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52384.65ms IncrementalHoareTripleChecker+Time [2021-11-13 17:57:06,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6536 Valid, 24487 Invalid, 15976 Unknown, 0 Unchecked, 165.98ms Time], IncrementalHoareTripleChecker [4483 Valid, 11484 Invalid, 9 Unknown, 0 Unchecked, 52384.65ms Time] [2021-11-13 17:57:07,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110480 states. [2021-11-13 17:57:12,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110480 to 97252. [2021-11-13 17:57:12,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97252 states, 68271 states have (on average 1.3154633739069297) internal successors, (89808), 69201 states have internal predecessors, (89808), 23233 states have call successors, (23233), 5706 states have call predecessors, (23233), 5747 states have return successors, (23632), 22972 states have call predecessors, (23632), 23232 states have call successors, (23632) [2021-11-13 17:57:13,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97252 states to 97252 states and 136673 transitions. [2021-11-13 17:57:13,168 INFO L78 Accepts]: Start accepts. Automaton has 97252 states and 136673 transitions. Word has length 699 [2021-11-13 17:57:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:57:13,176 INFO L470 AbstractCegarLoop]: Abstraction has 97252 states and 136673 transitions. [2021-11-13 17:57:13,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 4 states have internal predecessors, (323), 2 states have call successors, (73), 7 states have call predecessors, (73), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2021-11-13 17:57:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 97252 states and 136673 transitions. [2021-11-13 17:57:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2021-11-13 17:57:13,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:57:13,422 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:57:13,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 17:57:13,423 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:57:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:57:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1673350931, now seen corresponding path program 1 times [2021-11-13 17:57:13,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:57:13,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556090241] [2021-11-13 17:57:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:57:13,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:57:13,798 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:57:13,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139815972] [2021-11-13 17:57:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:57:13,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:57:13,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:13,801 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:57:13,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0207d1d-6b81-4096-8e3b-1d0b0f7a2fec/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 17:57:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:57:15,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 6396 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:57:15,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:57:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2021-11-13 17:57:17,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:57:17,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:57:17,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556090241] [2021-11-13 17:57:17,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:57:17,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139815972] [2021-11-13 17:57:17,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139815972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:57:17,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:57:17,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:57:17,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316524757] [2021-11-13 17:57:17,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:57:17,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:57:17,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:57:17,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:57:17,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:57:17,946 INFO L87 Difference]: Start difference. First operand 97252 states and 136673 transitions. Second operand has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74)