./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/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 e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:35:29,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:35:29,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:35:29,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:35:29,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:35:29,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:35:29,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:35:29,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:35:29,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:35:29,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:35:29,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:35:29,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:35:29,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:35:29,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:35:29,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:35:29,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:35:29,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:35:29,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:35:29,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:35:29,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:35:29,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:35:29,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:35:29,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:35:29,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:35:29,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:35:29,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:35:29,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:35:29,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:35:29,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:35:29,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:35:29,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:35:29,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:35:29,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:35:29,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:35:29,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:35:29,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:35:29,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:35:29,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:35:29,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:35:29,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:35:29,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:35:29,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:35:29,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:35:29,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:35:29,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:35:29,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:35:29,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:35:29,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:35:29,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:35:29,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:35:29,508 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:35:29,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:35:29,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:35:29,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:35:29,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:35:29,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:35:29,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:35:29,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:35:29,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:35:29,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:35:29,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:35:29,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:35:29,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:35:29,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:35:29,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:35:29,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:35:29,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:35:29,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:35:29,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:35:29,513 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:35:29,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:35:29,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:35:29,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:35:29,514 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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 [2021-11-13 18:35:29,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:35:29,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:35:29,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:35:29,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:35:29,785 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:35:29,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-13 18:35:29,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/data/1b1995e5b/cd02b538c78a4cdd860d6264ca56daf9/FLAGe7820625e [2021-11-13 18:35:30,796 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:35:30,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-13 18:35:30,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/data/1b1995e5b/cd02b538c78a4cdd860d6264ca56daf9/FLAGe7820625e [2021-11-13 18:35:31,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/data/1b1995e5b/cd02b538c78a4cdd860d6264ca56daf9 [2021-11-13 18:35:31,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:35:31,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:35:31,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:35:31,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:35:31,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:35:31,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:35:31" (1/1) ... [2021-11-13 18:35:31,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b9b33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:31, skipping insertion in model container [2021-11-13 18:35:31,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:35:31" (1/1) ... [2021-11-13 18:35:31,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:35:31,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:35:34,297 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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-13 18:35:34,300 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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-13 18:35:34,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:35:34,433 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:35:34,913 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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-13 18:35:34,913 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_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-13 18:35:34,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:35:35,137 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:35:35,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35 WrapperNode [2021-11-13 18:35:35,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:35:35,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:35:35,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:35:35,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:35:35,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:35:35,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:35:35,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:35:35,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:35:35,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:35:35,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:35:35,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:35:35,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:35:35,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (1/1) ... [2021-11-13 18:35:35,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:35:35,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:35:35,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:35:35,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:35:35,963 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-13 18:35:35,963 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2021-11-13 18:35:35,963 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2021-11-13 18:35:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-13 18:35:35,964 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-13 18:35:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:35:35,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:35:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:35:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:35:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2021-11-13 18:35:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2021-11-13 18:35:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2021-11-13 18:35:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2021-11-13 18:35:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2021-11-13 18:35:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2021-11-13 18:35:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:35:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:35:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2021-11-13 18:35:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2021-11-13 18:35:35,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:35:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:35:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-13 18:35:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-13 18:35:35,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2021-11-13 18:35:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2021-11-13 18:35:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2021-11-13 18:35:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2021-11-13 18:35:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:35:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:35:35,968 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2021-11-13 18:35:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2021-11-13 18:35:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-13 18:35:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-13 18:35:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2021-11-13 18:35:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2021-11-13 18:35:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2021-11-13 18:35:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2021-11-13 18:35:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-13 18:35:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-13 18:35:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:35:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:35:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:35:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:35:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-13 18:35:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-13 18:35:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-13 18:35:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-13 18:35:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:35:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:35:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:35:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:35:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:35:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-13 18:35:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-13 18:35:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-13 18:35:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-13 18:35:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:35:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:35:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:35:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:35:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:35:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:35:35,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:35:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:35:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:35:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:35:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:35:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-13 18:35:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-13 18:35:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 18:35:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 18:35:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:35:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:35:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:35:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:35:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:35:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:35:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2021-11-13 18:35:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2021-11-13 18:35:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2021-11-13 18:35:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2021-11-13 18:35:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:35:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2021-11-13 18:35:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2021-11-13 18:35:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-13 18:35:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-13 18:35:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2021-11-13 18:35:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2021-11-13 18:35:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:35:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:35:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:35:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:35:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:35:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:35:35,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:35:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:35:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:35:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 18:35:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 18:35:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 18:35:35,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 18:35:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:35:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:35:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-13 18:35:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-13 18:35:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:35:35,986 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:35:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 18:35:35,987 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 18:35:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 18:35:35,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 18:35:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-13 18:35:35,988 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-13 18:35:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2021-11-13 18:35:35,988 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2021-11-13 18:35:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:35:35,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:35:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2021-11-13 18:35:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2021-11-13 18:35:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-13 18:35:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-13 18:35:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:35:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2021-11-13 18:35:35,995 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2021-11-13 18:35:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:35:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:35:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:35:36,002 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 18:35:36,002 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 18:35:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-13 18:35:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-13 18:35:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 18:35:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 18:35:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:35:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:35:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:35:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:35:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-13 18:35:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-13 18:35:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-13 18:35:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-13 18:35:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-13 18:35:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-13 18:35:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:35:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:35:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 18:35:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 18:35:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2021-11-13 18:35:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2021-11-13 18:35:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:35:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-13 18:35:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-13 18:35:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2021-11-13 18:35:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2021-11-13 18:35:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:35:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:35:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:35:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:35:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-13 18:35:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-13 18:35:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2021-11-13 18:35:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2021-11-13 18:35:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2021-11-13 18:35:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2021-11-13 18:35:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-13 18:35:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-13 18:35:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:35:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:35:36,008 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2021-11-13 18:35:36,008 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2021-11-13 18:35:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:35:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:35:36,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:35:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-13 18:35:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-13 18:35:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:35:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:35:36,010 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 18:35:36,010 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 18:35:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-13 18:35:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-13 18:35:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-13 18:35:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-13 18:35:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:35:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-13 18:35:36,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-13 18:35:36,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:35:36,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:35:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-13 18:35:36,012 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-13 18:35:36,012 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2021-11-13 18:35:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2021-11-13 18:35:37,508 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:35:54,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:35:54,617 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:35:54,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:35:54 BoogieIcfgContainer [2021-11-13 18:35:54,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:35:54,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:35:54,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:35:54,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:35:54,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:35:31" (1/3) ... [2021-11-13 18:35:54,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa42d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:35:54, skipping insertion in model container [2021-11-13 18:35:54,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:35:35" (2/3) ... [2021-11-13 18:35:54,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa42d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:35:54, skipping insertion in model container [2021-11-13 18:35:54,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:35:54" (3/3) ... [2021-11-13 18:35:54,630 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-13 18:35:54,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:35:54,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:35:54,692 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:35:54,698 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 18:35:54,699 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:35:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 1847 states, 1225 states have (on average 1.2938775510204081) internal successors, (1585), 1272 states have internal predecessors, (1585), 533 states have call successors, (533), 88 states have call predecessors, (533), 87 states have return successors, (529), 515 states have call predecessors, (529), 529 states have call successors, (529) [2021-11-13 18:35:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 18:35:54,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:35:54,783 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:35:54,784 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:35:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:35:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2081191878, now seen corresponding path program 1 times [2021-11-13 18:35:54,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:35:54,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415773329] [2021-11-13 18:35:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:35:54,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:35:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:35:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:35:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:35:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:35:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:35:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:35:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:35:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:35:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:35:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:35:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:35:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:35:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:35:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:35:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:35:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:35:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:35:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:35:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:35:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:35:55,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:35:55,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415773329] [2021-11-13 18:35:55,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415773329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:35:55,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:35:55,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:35:55,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471438486] [2021-11-13 18:35:55,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:35:55,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:35:55,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:35:55,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:35:55,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:35:55,982 INFO L87 Difference]: Start difference. First operand has 1847 states, 1225 states have (on average 1.2938775510204081) internal successors, (1585), 1272 states have internal predecessors, (1585), 533 states have call successors, (533), 88 states have call predecessors, (533), 87 states have return successors, (529), 515 states have call predecessors, (529), 529 states have call successors, (529) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:35:58,068 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 18:36:00,198 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 18:36:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:36:05,294 INFO L93 Difference]: Finished difference Result 3789 states and 5482 transitions. [2021-11-13 18:36:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:36:05,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2021-11-13 18:36:05,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:36:05,344 INFO L225 Difference]: With dead ends: 3789 [2021-11-13 18:36:05,344 INFO L226 Difference]: Without dead ends: 1817 [2021-11-13 18:36:05,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:36:05,372 INFO L933 BasicCegarLoop]: 2315 mSDtfsCounter, 1153 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 1462 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7962.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.16ms SdHoareTripleChecker+Time, 1462 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8917.22ms IncrementalHoareTripleChecker+Time [2021-11-13 18:36:05,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 3971 Invalid, 3018 Unknown, 0 Unchecked, 59.16ms Time], IncrementalHoareTripleChecker [1462 Valid, 1554 Invalid, 2 Unknown, 0 Unchecked, 8917.22ms Time] [2021-11-13 18:36:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2021-11-13 18:36:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1692. [2021-11-13 18:36:05,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1125 states have (on average 1.2746666666666666) internal successors, (1434), 1169 states have internal predecessors, (1434), 481 states have call successors, (481), 85 states have call predecessors, (481), 85 states have return successors, (480), 466 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:36:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2395 transitions. [2021-11-13 18:36:05,632 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2395 transitions. Word has length 120 [2021-11-13 18:36:05,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:36:05,636 INFO L470 AbstractCegarLoop]: Abstraction has 1692 states and 2395 transitions. [2021-11-13 18:36:05,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2395 transitions. [2021-11-13 18:36:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-13 18:36:05,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:36:05,646 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:36:05,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:36:05,647 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:36:05,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:36:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash -506003098, now seen corresponding path program 1 times [2021-11-13 18:36:05,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:36:05,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779852418] [2021-11-13 18:36:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:36:05,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:36:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:36:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:36:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:36:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:36:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:36:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:36:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:36:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:36:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:36:06,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:36:06,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779852418] [2021-11-13 18:36:06,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779852418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:36:06,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:36:06,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:36:06,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797799848] [2021-11-13 18:36:06,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:36:06,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:36:06,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:36:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:36:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:36:06,333 INFO L87 Difference]: Start difference. First operand 1692 states and 2395 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:08,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:10,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:12,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:19,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:36:19,747 INFO L93 Difference]: Finished difference Result 3489 states and 4965 transitions. [2021-11-13 18:36:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:36:19,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2021-11-13 18:36:19,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:36:19,769 INFO L225 Difference]: With dead ends: 3489 [2021-11-13 18:36:19,769 INFO L226 Difference]: Without dead ends: 1817 [2021-11-13 18:36:19,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:36:19,783 INFO L933 BasicCegarLoop]: 2102 mSDtfsCounter, 2858 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 1925 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11841.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.86ms SdHoareTripleChecker+Time, 1925 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12993.73ms IncrementalHoareTripleChecker+Time [2021-11-13 18:36:19,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3130 Valid, 4452 Invalid, 4918 Unknown, 0 Unchecked, 66.86ms Time], IncrementalHoareTripleChecker [1925 Valid, 2990 Invalid, 3 Unknown, 0 Unchecked, 12993.73ms Time] [2021-11-13 18:36:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2021-11-13 18:36:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1692. [2021-11-13 18:36:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1125 states have (on average 1.2737777777777777) internal successors, (1433), 1169 states have internal predecessors, (1433), 481 states have call successors, (481), 85 states have call predecessors, (481), 85 states have return successors, (480), 466 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:36:19,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2394 transitions. [2021-11-13 18:36:19,905 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2394 transitions. Word has length 121 [2021-11-13 18:36:19,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:36:19,906 INFO L470 AbstractCegarLoop]: Abstraction has 1692 states and 2394 transitions. [2021-11-13 18:36:19,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2394 transitions. [2021-11-13 18:36:19,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-13 18:36:19,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:36:19,911 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:36:19,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:36:19,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:36:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:36:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash -802042173, now seen corresponding path program 1 times [2021-11-13 18:36:19,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:36:19,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462990178] [2021-11-13 18:36:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:36:19,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:36:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:36:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:36:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:36:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:36:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:36:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:36:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:36:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:36:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:36:20,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:36:20,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462990178] [2021-11-13 18:36:20,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462990178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:36:20,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:36:20,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:36:20,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968124981] [2021-11-13 18:36:20,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:36:20,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:36:20,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:36:20,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:36:20,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:36:20,597 INFO L87 Difference]: Start difference. First operand 1692 states and 2394 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:22,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:24,818 WARN L515 Checker$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 18:36:26,955 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 18:36:34,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:36:34,515 INFO L93 Difference]: Finished difference Result 3489 states and 4963 transitions. [2021-11-13 18:36:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:36:34,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2021-11-13 18:36:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:36:34,543 INFO L225 Difference]: With dead ends: 3489 [2021-11-13 18:36:34,543 INFO L226 Difference]: Without dead ends: 1817 [2021-11-13 18:36:34,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:36:34,564 INFO L933 BasicCegarLoop]: 2093 mSDtfsCounter, 4067 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 3569 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12194.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4067 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 6556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.93ms SdHoareTripleChecker+Time, 3569 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13491.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:36:34,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4067 Valid, 4432 Invalid, 6556 Unknown, 0 Unchecked, 53.93ms Time], IncrementalHoareTripleChecker [3569 Valid, 2984 Invalid, 3 Unknown, 0 Unchecked, 13491.53ms Time] [2021-11-13 18:36:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2021-11-13 18:36:34,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1692. [2021-11-13 18:36:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1125 states have (on average 1.272888888888889) internal successors, (1432), 1169 states have internal predecessors, (1432), 481 states have call successors, (481), 85 states have call predecessors, (481), 85 states have return successors, (480), 466 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:36:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2393 transitions. [2021-11-13 18:36:34,689 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2393 transitions. Word has length 122 [2021-11-13 18:36:34,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:36:34,690 INFO L470 AbstractCegarLoop]: Abstraction has 1692 states and 2393 transitions. [2021-11-13 18:36:34,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2393 transitions. [2021-11-13 18:36:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-13 18:36:34,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:36:34,693 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:36:34,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:36:34,694 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:36:34,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:36:34,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1274802302, now seen corresponding path program 1 times [2021-11-13 18:36:34,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:36:34,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748912515] [2021-11-13 18:36:34,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:36:34,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:36:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:36:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:36:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:36:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:36:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:36:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:36:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:36:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:36:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:36:35,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:36:35,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748912515] [2021-11-13 18:36:35,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748912515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:36:35,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:36:35,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:36:35,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110008263] [2021-11-13 18:36:35,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:36:35,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:36:35,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:36:35,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:36:35,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:36:35,306 INFO L87 Difference]: Start difference. First operand 1692 states and 2393 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:37,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:39,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:41,593 WARN L515 Checker$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 18:36:48,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:36:48,013 INFO L93 Difference]: Finished difference Result 3489 states and 4961 transitions. [2021-11-13 18:36:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:36:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2021-11-13 18:36:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:36:48,032 INFO L225 Difference]: With dead ends: 3489 [2021-11-13 18:36:48,033 INFO L226 Difference]: Without dead ends: 1817 [2021-11-13 18:36:48,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:36:48,047 INFO L933 BasicCegarLoop]: 2095 mSDtfsCounter, 4060 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 3563 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11265.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4060 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 6551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.41ms SdHoareTripleChecker+Time, 3563 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12388.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:36:48,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4060 Valid, 4438 Invalid, 6551 Unknown, 0 Unchecked, 39.41ms Time], IncrementalHoareTripleChecker [3563 Valid, 2985 Invalid, 3 Unknown, 0 Unchecked, 12388.31ms Time] [2021-11-13 18:36:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2021-11-13 18:36:48,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1692. [2021-11-13 18:36:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1125 states have (on average 1.272) internal successors, (1431), 1169 states have internal predecessors, (1431), 481 states have call successors, (481), 85 states have call predecessors, (481), 85 states have return successors, (480), 466 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:36:48,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2392 transitions. [2021-11-13 18:36:48,168 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2392 transitions. Word has length 123 [2021-11-13 18:36:48,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:36:48,169 INFO L470 AbstractCegarLoop]: Abstraction has 1692 states and 2392 transitions. [2021-11-13 18:36:48,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2392 transitions. [2021-11-13 18:36:48,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-13 18:36:48,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:36:48,171 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:36:48,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:36:48,172 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:36:48,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:36:48,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1364019487, now seen corresponding path program 1 times [2021-11-13 18:36:48,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:36:48,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110285055] [2021-11-13 18:36:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:36:48,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:36:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:36:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:36:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:36:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:36:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:36:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:36:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:36:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:36:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:36:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:36:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:36:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:36:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:36:48,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:36:48,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110285055] [2021-11-13 18:36:48,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110285055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:36:48,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:36:48,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:36:48,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813352015] [2021-11-13 18:36:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:36:48,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:36:48,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:36:48,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:36:48,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:36:48,770 INFO L87 Difference]: Start difference. First operand 1692 states and 2392 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:36:50,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:52,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:36:55,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:01,448 INFO L93 Difference]: Finished difference Result 3489 states and 4959 transitions. [2021-11-13 18:37:01,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:37:01,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2021-11-13 18:37:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:01,475 INFO L225 Difference]: With dead ends: 3489 [2021-11-13 18:37:01,475 INFO L226 Difference]: Without dead ends: 1817 [2021-11-13 18:37:01,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:37:01,489 INFO L933 BasicCegarLoop]: 2093 mSDtfsCounter, 4053 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 3569 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11222.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4053 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 6557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.52ms SdHoareTripleChecker+Time, 3569 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12219.05ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:01,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4053 Valid, 4438 Invalid, 6557 Unknown, 0 Unchecked, 35.52ms Time], IncrementalHoareTripleChecker [3569 Valid, 2985 Invalid, 3 Unknown, 0 Unchecked, 12219.05ms Time] [2021-11-13 18:37:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2021-11-13 18:37:01,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1692. [2021-11-13 18:37:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1125 states have (on average 1.271111111111111) internal successors, (1430), 1169 states have internal predecessors, (1430), 481 states have call successors, (481), 85 states have call predecessors, (481), 85 states have return successors, (480), 466 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:37:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2391 transitions. [2021-11-13 18:37:01,614 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2391 transitions. Word has length 124 [2021-11-13 18:37:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:37:01,614 INFO L470 AbstractCegarLoop]: Abstraction has 1692 states and 2391 transitions. [2021-11-13 18:37:01,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2391 transitions. [2021-11-13 18:37:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-13 18:37:01,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:01,617 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:01,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:37:01,618 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:01,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:01,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1677632926, now seen corresponding path program 1 times [2021-11-13 18:37:01,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:01,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652293648] [2021-11-13 18:37:01,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:01,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:37:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:01,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:37:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:37:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:37:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:37:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:37:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:37:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:37:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:37:02,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:02,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652293648] [2021-11-13 18:37:02,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652293648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:02,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:02,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:37:02,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018777024] [2021-11-13 18:37:02,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:02,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:37:02,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:37:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:37:02,221 INFO L87 Difference]: Start difference. First operand 1692 states and 2391 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:04,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:06,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:08,547 WARN L515 Checker$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 18:37:17,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:17,182 INFO L93 Difference]: Finished difference Result 4391 states and 6195 transitions. [2021-11-13 18:37:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:37:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2021-11-13 18:37:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:17,212 INFO L225 Difference]: With dead ends: 4391 [2021-11-13 18:37:17,212 INFO L226 Difference]: Without dead ends: 2719 [2021-11-13 18:37:17,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:37:17,224 INFO L933 BasicCegarLoop]: 2666 mSDtfsCounter, 5452 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 3609 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13079.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5769 SdHoareTripleChecker+Valid, 6182 SdHoareTripleChecker+Invalid, 7939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.76ms SdHoareTripleChecker+Time, 3609 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14277.18ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:17,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5769 Valid, 6182 Invalid, 7939 Unknown, 0 Unchecked, 53.76ms Time], IncrementalHoareTripleChecker [3609 Valid, 4327 Invalid, 3 Unknown, 0 Unchecked, 14277.18ms Time] [2021-11-13 18:37:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-11-13 18:37:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2587. [2021-11-13 18:37:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2788461538461537) internal successors, (2261), 1840 states have internal predecessors, (2261), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:37:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3614 transitions. [2021-11-13 18:37:17,428 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3614 transitions. Word has length 125 [2021-11-13 18:37:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:37:17,428 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3614 transitions. [2021-11-13 18:37:17,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3614 transitions. [2021-11-13 18:37:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-13 18:37:17,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:17,431 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:17,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:37:17,432 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:17,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1370735749, now seen corresponding path program 1 times [2021-11-13 18:37:17,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:17,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428805021] [2021-11-13 18:37:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:17,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:37:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:37:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:37:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:37:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:37:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:37:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:37:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:37:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:37:17,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:17,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428805021] [2021-11-13 18:37:17,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428805021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:17,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:17,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:37:17,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187188548] [2021-11-13 18:37:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:17,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:37:17,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:37:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:37:17,990 INFO L87 Difference]: Start difference. First operand 2587 states and 3614 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:20,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:22,172 WARN L515 Checker$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 18:37:24,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:30,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:30,827 INFO L93 Difference]: Finished difference Result 5280 states and 7442 transitions. [2021-11-13 18:37:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:37:30,828 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2021-11-13 18:37:30,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:30,859 INFO L225 Difference]: With dead ends: 5280 [2021-11-13 18:37:30,859 INFO L226 Difference]: Without dead ends: 2713 [2021-11-13 18:37:30,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:37:30,877 INFO L933 BasicCegarLoop]: 2089 mSDtfsCounter, 4049 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 3573 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11328.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 6554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.72ms SdHoareTripleChecker+Time, 3573 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12292.64ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:30,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4049 Valid, 4427 Invalid, 6554 Unknown, 0 Unchecked, 37.72ms Time], IncrementalHoareTripleChecker [3573 Valid, 2978 Invalid, 3 Unknown, 0 Unchecked, 12292.64ms Time] [2021-11-13 18:37:30,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-11-13 18:37:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2587. [2021-11-13 18:37:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2771493212669682) internal successors, (2258), 1840 states have internal predecessors, (2258), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:37:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3611 transitions. [2021-11-13 18:37:31,103 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3611 transitions. Word has length 126 [2021-11-13 18:37:31,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:37:31,103 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3611 transitions. [2021-11-13 18:37:31,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:31,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3611 transitions. [2021-11-13 18:37:31,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-13 18:37:31,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:31,106 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:31,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:37:31,107 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:31,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:31,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1266367558, now seen corresponding path program 1 times [2021-11-13 18:37:31,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:31,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088976018] [2021-11-13 18:37:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:31,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:37:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:37:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:37:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:37:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:37:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:37:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:37:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:37:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:37:31,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:31,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088976018] [2021-11-13 18:37:31,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088976018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:31,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:31,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:37:31,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019978662] [2021-11-13 18:37:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:31,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:37:31,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:31,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:37:31,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:37:31,648 INFO L87 Difference]: Start difference. First operand 2587 states and 3611 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:33,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:35,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:37,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:44,323 INFO L93 Difference]: Finished difference Result 5280 states and 7436 transitions. [2021-11-13 18:37:44,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:37:44,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2021-11-13 18:37:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:44,345 INFO L225 Difference]: With dead ends: 5280 [2021-11-13 18:37:44,345 INFO L226 Difference]: Without dead ends: 2713 [2021-11-13 18:37:44,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:37:44,361 INFO L933 BasicCegarLoop]: 2083 mSDtfsCounter, 4050 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 3581 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11288.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4050 SdHoareTripleChecker+Valid, 4415 SdHoareTripleChecker+Invalid, 6559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.45ms SdHoareTripleChecker+Time, 3581 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12201.13ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:44,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4050 Valid, 4415 Invalid, 6559 Unknown, 0 Unchecked, 33.45ms Time], IncrementalHoareTripleChecker [3581 Valid, 2975 Invalid, 3 Unknown, 0 Unchecked, 12201.13ms Time] [2021-11-13 18:37:44,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-11-13 18:37:44,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2587. [2021-11-13 18:37:44,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2754524886877827) internal successors, (2255), 1840 states have internal predecessors, (2255), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:37:44,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3608 transitions. [2021-11-13 18:37:44,592 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3608 transitions. Word has length 127 [2021-11-13 18:37:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:37:44,593 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3608 transitions. [2021-11-13 18:37:44,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3608 transitions. [2021-11-13 18:37:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-13 18:37:44,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:44,597 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:44,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:37:44,597 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2083562967, now seen corresponding path program 1 times [2021-11-13 18:37:44,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:44,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118235935] [2021-11-13 18:37:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:44,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:37:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:37:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:37:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:37:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:37:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:37:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:37:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:37:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:37:45,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:45,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118235935] [2021-11-13 18:37:45,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118235935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:45,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:45,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:37:45,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714845005] [2021-11-13 18:37:45,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:45,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:37:45,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:45,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:37:45,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:37:45,043 INFO L87 Difference]: Start difference. First operand 2587 states and 3608 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:47,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:49,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:51,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:37:57,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:37:57,323 INFO L93 Difference]: Finished difference Result 5280 states and 7430 transitions. [2021-11-13 18:37:57,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:37:57,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 128 [2021-11-13 18:37:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:37:57,346 INFO L225 Difference]: With dead ends: 5280 [2021-11-13 18:37:57,347 INFO L226 Difference]: Without dead ends: 2713 [2021-11-13 18:37:57,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:37:57,358 INFO L933 BasicCegarLoop]: 2092 mSDtfsCounter, 4033 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 3567 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10904.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4033 SdHoareTripleChecker+Valid, 4439 SdHoareTripleChecker+Invalid, 6552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.12ms SdHoareTripleChecker+Time, 3567 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11829.05ms IncrementalHoareTripleChecker+Time [2021-11-13 18:37:57,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4033 Valid, 4439 Invalid, 6552 Unknown, 0 Unchecked, 30.12ms Time], IncrementalHoareTripleChecker [3567 Valid, 2982 Invalid, 3 Unknown, 0 Unchecked, 11829.05ms Time] [2021-11-13 18:37:57,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-11-13 18:37:57,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2587. [2021-11-13 18:37:57,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2737556561085972) internal successors, (2252), 1840 states have internal predecessors, (2252), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:37:57,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3605 transitions. [2021-11-13 18:37:57,575 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3605 transitions. Word has length 128 [2021-11-13 18:37:57,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:37:57,575 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3605 transitions. [2021-11-13 18:37:57,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:37:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3605 transitions. [2021-11-13 18:37:57,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-13 18:37:57,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:37:57,578 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:37:57,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:37:57,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:37:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:37:57,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1328256554, now seen corresponding path program 1 times [2021-11-13 18:37:57,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:37:57,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206072579] [2021-11-13 18:37:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:37:57,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:37:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:37:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:37:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:37:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:37:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:37:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:37:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:37:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:37:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:37:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:37:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:37:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:37:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:37:58,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:37:58,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206072579] [2021-11-13 18:37:58,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206072579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:37:58,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:37:58,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:37:58,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791614088] [2021-11-13 18:37:58,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:37:58,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:37:58,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:37:58,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:37:58,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:37:58,004 INFO L87 Difference]: Start difference. First operand 2587 states and 3605 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:00,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:02,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:04,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:10,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:38:10,368 INFO L93 Difference]: Finished difference Result 5280 states and 7424 transitions. [2021-11-13 18:38:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:38:10,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2021-11-13 18:38:10,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:38:10,391 INFO L225 Difference]: With dead ends: 5280 [2021-11-13 18:38:10,391 INFO L226 Difference]: Without dead ends: 2713 [2021-11-13 18:38:10,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:38:10,403 INFO L933 BasicCegarLoop]: 2084 mSDtfsCounter, 4036 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 3577 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10981.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4036 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 6554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.50ms SdHoareTripleChecker+Time, 3577 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11882.90ms IncrementalHoareTripleChecker+Time [2021-11-13 18:38:10,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4036 Valid, 4420 Invalid, 6554 Unknown, 0 Unchecked, 30.50ms Time], IncrementalHoareTripleChecker [3577 Valid, 2974 Invalid, 3 Unknown, 0 Unchecked, 11882.90ms Time] [2021-11-13 18:38:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-11-13 18:38:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2587. [2021-11-13 18:38:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2720588235294117) internal successors, (2249), 1840 states have internal predecessors, (2249), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:38:10,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3602 transitions. [2021-11-13 18:38:10,627 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3602 transitions. Word has length 129 [2021-11-13 18:38:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:38:10,628 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3602 transitions. [2021-11-13 18:38:10,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3602 transitions. [2021-11-13 18:38:10,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-13 18:38:10,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:38:10,631 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:38:10,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:38:10,632 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:38:10,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:38:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash 394037299, now seen corresponding path program 1 times [2021-11-13 18:38:10,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:38:10,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840179875] [2021-11-13 18:38:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:38:10,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:38:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:38:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:38:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:38:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:38:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:38:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:38:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:38:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:38:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:38:11,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:38:11,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840179875] [2021-11-13 18:38:11,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840179875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:38:11,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:38:11,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:38:11,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805211090] [2021-11-13 18:38:11,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:38:11,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:38:11,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:38:11,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:38:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:38:11,064 INFO L87 Difference]: Start difference. First operand 2587 states and 3602 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:13,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:15,258 WARN L515 Checker$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 18:38:17,403 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 18:38:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:38:23,524 INFO L93 Difference]: Finished difference Result 5280 states and 7418 transitions. [2021-11-13 18:38:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:38:23,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2021-11-13 18:38:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:38:23,545 INFO L225 Difference]: With dead ends: 5280 [2021-11-13 18:38:23,545 INFO L226 Difference]: Without dead ends: 2713 [2021-11-13 18:38:23,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:38:23,555 INFO L933 BasicCegarLoop]: 2090 mSDtfsCounter, 4023 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 3567 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10954.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 6551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.33ms SdHoareTripleChecker+Time, 3567 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11899.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:38:23,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4023 Valid, 4436 Invalid, 6551 Unknown, 0 Unchecked, 30.33ms Time], IncrementalHoareTripleChecker [3567 Valid, 2981 Invalid, 3 Unknown, 0 Unchecked, 11899.53ms Time] [2021-11-13 18:38:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-11-13 18:38:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2587. [2021-11-13 18:38:23,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2703619909502262) internal successors, (2246), 1840 states have internal predecessors, (2246), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:38:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3599 transitions. [2021-11-13 18:38:23,781 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3599 transitions. Word has length 130 [2021-11-13 18:38:23,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:38:23,782 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3599 transitions. [2021-11-13 18:38:23,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:23,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3599 transitions. [2021-11-13 18:38:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-13 18:38:23,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:38:23,785 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:38:23,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:38:23,785 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:38:23,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:38:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1934911502, now seen corresponding path program 1 times [2021-11-13 18:38:23,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:38:23,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222290951] [2021-11-13 18:38:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:38:23,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:38:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:23,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:38:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:38:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:38:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:38:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:38:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:38:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:38:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:38:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:38:24,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:38:24,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222290951] [2021-11-13 18:38:24,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222290951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:38:24,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:38:24,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:38:24,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120894670] [2021-11-13 18:38:24,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:38:24,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:38:24,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:38:24,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:38:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:38:24,206 INFO L87 Difference]: Start difference. First operand 2587 states and 3599 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:26,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:28,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:30,514 WARN L515 Checker$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 18:38:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:38:36,648 INFO L93 Difference]: Finished difference Result 5280 states and 7412 transitions. [2021-11-13 18:38:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:38:36,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 131 [2021-11-13 18:38:36,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:38:36,664 INFO L225 Difference]: With dead ends: 5280 [2021-11-13 18:38:36,664 INFO L226 Difference]: Without dead ends: 2713 [2021-11-13 18:38:36,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:38:36,674 INFO L933 BasicCegarLoop]: 2080 mSDtfsCounter, 4030 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 3579 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10978.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4030 SdHoareTripleChecker+Valid, 4414 SdHoareTripleChecker+Invalid, 6554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.81ms SdHoareTripleChecker+Time, 3579 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11899.08ms IncrementalHoareTripleChecker+Time [2021-11-13 18:38:36,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4030 Valid, 4414 Invalid, 6554 Unknown, 0 Unchecked, 31.81ms Time], IncrementalHoareTripleChecker [3579 Valid, 2972 Invalid, 3 Unknown, 0 Unchecked, 11899.08ms Time] [2021-11-13 18:38:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-11-13 18:38:36,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2587. [2021-11-13 18:38:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1768 states have (on average 1.2686651583710407) internal successors, (2243), 1840 states have internal predecessors, (2243), 672 states have call successors, (672), 159 states have call predecessors, (672), 146 states have return successors, (681), 625 states have call predecessors, (681), 671 states have call successors, (681) [2021-11-13 18:38:36,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3596 transitions. [2021-11-13 18:38:36,903 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3596 transitions. Word has length 131 [2021-11-13 18:38:36,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:38:36,904 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3596 transitions. [2021-11-13 18:38:36,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:36,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3596 transitions. [2021-11-13 18:38:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-13 18:38:36,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:38:36,907 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:38:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:38:36,908 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:38:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:38:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1003363697, now seen corresponding path program 1 times [2021-11-13 18:38:36,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:38:36,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501956026] [2021-11-13 18:38:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:38:36,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:38:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:38:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:38:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:38:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:38:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:38:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:38:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:38:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:38:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:38:37,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:38:37,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501956026] [2021-11-13 18:38:37,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501956026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:38:37,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:38:37,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:38:37,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367453413] [2021-11-13 18:38:37,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:38:37,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:38:37,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:38:37,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:38:37,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:38:37,333 INFO L87 Difference]: Start difference. First operand 2587 states and 3596 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:39,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:38:41,517 WARN L515 Checker$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 18:38:43,643 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 18:38:56,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:38:56,543 INFO L93 Difference]: Finished difference Result 7545 states and 10632 transitions. [2021-11-13 18:38:56,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:38:56,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 132 [2021-11-13 18:38:56,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:38:56,571 INFO L225 Difference]: With dead ends: 7545 [2021-11-13 18:38:56,571 INFO L226 Difference]: Without dead ends: 4978 [2021-11-13 18:38:56,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:38:56,583 INFO L933 BasicCegarLoop]: 3367 mSDtfsCounter, 5405 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 6779 mSolverCounterSat, 4694 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16784.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 7905 SdHoareTripleChecker+Invalid, 11476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.60ms SdHoareTripleChecker+Time, 4694 IncrementalHoareTripleChecker+Valid, 6779 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18513.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:38:56,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5682 Valid, 7905 Invalid, 11476 Unknown, 0 Unchecked, 70.60ms Time], IncrementalHoareTripleChecker [4694 Valid, 6779 Invalid, 3 Unknown, 0 Unchecked, 18513.31ms Time] [2021-11-13 18:38:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2021-11-13 18:38:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4801. [2021-11-13 18:38:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4801 states, 3258 states have (on average 1.2648864333947207) internal successors, (4121), 3390 states have internal predecessors, (4121), 1264 states have call successors, (1264), 290 states have call predecessors, (1264), 278 states have return successors, (1328), 1191 states have call predecessors, (1328), 1262 states have call successors, (1328) [2021-11-13 18:38:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 6713 transitions. [2021-11-13 18:38:56,993 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 6713 transitions. Word has length 132 [2021-11-13 18:38:56,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:38:56,994 INFO L470 AbstractCegarLoop]: Abstraction has 4801 states and 6713 transitions. [2021-11-13 18:38:56,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:56,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 6713 transitions. [2021-11-13 18:38:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-13 18:38:56,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:38:56,997 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:38:56,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:38:56,998 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:38:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:38:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2075636210, now seen corresponding path program 1 times [2021-11-13 18:38:56,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:38:56,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997869225] [2021-11-13 18:38:56,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:38:56,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:38:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:38:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:38:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:38:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:38:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:38:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:38:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:38:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:38:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:38:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:38:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:38:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:38:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:38:57,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:38:57,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997869225] [2021-11-13 18:38:57,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997869225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:38:57,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:38:57,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:38:57,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245483816] [2021-11-13 18:38:57,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:38:57,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:38:57,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:38:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:38:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:38:57,448 INFO L87 Difference]: Start difference. First operand 4801 states and 6713 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:38:59,497 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 18:39:01,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:03,748 WARN L515 Checker$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 18:39:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:17,004 INFO L93 Difference]: Finished difference Result 7625 states and 10756 transitions. [2021-11-13 18:39:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:39:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 133 [2021-11-13 18:39:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:17,031 INFO L225 Difference]: With dead ends: 7625 [2021-11-13 18:39:17,031 INFO L226 Difference]: Without dead ends: 4978 [2021-11-13 18:39:17,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:39:17,046 INFO L933 BasicCegarLoop]: 3367 mSDtfsCounter, 5396 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 6778 mSolverCounterSat, 4684 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17071.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5674 SdHoareTripleChecker+Valid, 7910 SdHoareTripleChecker+Invalid, 11465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.34ms SdHoareTripleChecker+Time, 4684 IncrementalHoareTripleChecker+Valid, 6778 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18804.60ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:17,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5674 Valid, 7910 Invalid, 11465 Unknown, 0 Unchecked, 73.34ms Time], IncrementalHoareTripleChecker [4684 Valid, 6778 Invalid, 3 Unknown, 0 Unchecked, 18804.60ms Time] [2021-11-13 18:39:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2021-11-13 18:39:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4801. [2021-11-13 18:39:17,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4801 states, 3258 states have (on average 1.2639656230816452) internal successors, (4118), 3390 states have internal predecessors, (4118), 1264 states have call successors, (1264), 290 states have call predecessors, (1264), 278 states have return successors, (1328), 1191 states have call predecessors, (1328), 1262 states have call successors, (1328) [2021-11-13 18:39:17,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 6710 transitions. [2021-11-13 18:39:17,601 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 6710 transitions. Word has length 133 [2021-11-13 18:39:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:17,601 INFO L470 AbstractCegarLoop]: Abstraction has 4801 states and 6710 transitions. [2021-11-13 18:39:17,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:39:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 6710 transitions. [2021-11-13 18:39:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-13 18:39:17,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:17,607 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:17,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 18:39:17,607 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:17,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2047007059, now seen corresponding path program 1 times [2021-11-13 18:39:17,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:17,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942432510] [2021-11-13 18:39:17,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:17,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:39:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:39:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:39:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:39:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:39:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:39:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:39:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:39:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-13 18:39:18,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:18,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942432510] [2021-11-13 18:39:18,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942432510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:18,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:18,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:39:18,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891083673] [2021-11-13 18:39:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:18,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:39:18,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:18,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:39:18,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:39:18,008 INFO L87 Difference]: Start difference. First operand 4801 states and 6710 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-13 18:39:20,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:22,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:28,867 INFO L93 Difference]: Finished difference Result 4984 states and 7008 transitions. [2021-11-13 18:39:28,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:39:28,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 133 [2021-11-13 18:39:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:28,891 INFO L225 Difference]: With dead ends: 4984 [2021-11-13 18:39:28,891 INFO L226 Difference]: Without dead ends: 4982 [2021-11-13 18:39:28,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:39:28,895 INFO L933 BasicCegarLoop]: 2089 mSDtfsCounter, 1093 mSDsluCounter, 6344 mSDsCounter, 0 mSdLazyCounter, 3812 mSolverCounterSat, 1331 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9299.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 8433 SdHoareTripleChecker+Invalid, 5145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.15ms SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 3812 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10245.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:28,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 8433 Invalid, 5145 Unknown, 0 Unchecked, 50.15ms Time], IncrementalHoareTripleChecker [1331 Valid, 3812 Invalid, 2 Unknown, 0 Unchecked, 10245.31ms Time] [2021-11-13 18:39:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4982 states. [2021-11-13 18:39:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4982 to 4811. [2021-11-13 18:39:29,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 3264 states have (on average 1.2628676470588236) internal successors, (4122), 3399 states have internal predecessors, (4122), 1264 states have call successors, (1264), 290 states have call predecessors, (1264), 282 states have return successors, (1334), 1192 states have call predecessors, (1334), 1262 states have call successors, (1334) [2021-11-13 18:39:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6720 transitions. [2021-11-13 18:39:29,262 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6720 transitions. Word has length 133 [2021-11-13 18:39:29,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:29,263 INFO L470 AbstractCegarLoop]: Abstraction has 4811 states and 6720 transitions. [2021-11-13 18:39:29,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-13 18:39:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6720 transitions. [2021-11-13 18:39:29,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-13 18:39:29,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:29,270 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2021-11-13 18:39:29,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 18:39:29,271 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:29,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1800879820, now seen corresponding path program 1 times [2021-11-13 18:39:29,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:29,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054456458] [2021-11-13 18:39:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:29,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:39:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-13 18:39:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:39:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-13 18:39:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:39:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:39:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-13 18:39:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-13 18:39:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:39:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:39:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-13 18:39:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:39:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:39:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 18:39:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:39:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 18:39:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 18:39:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:39:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-13 18:39:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-13 18:39:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-13 18:39:29,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:29,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054456458] [2021-11-13 18:39:29,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054456458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:29,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:29,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:39:29,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205699264] [2021-11-13 18:39:29,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:29,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:39:29,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:29,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:39:29,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:39:29,732 INFO L87 Difference]: Start difference. First operand 4811 states and 6720 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 18:39:31,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:33,934 WARN L515 Checker$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 18:39:36,062 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 18:39:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:41,776 INFO L93 Difference]: Finished difference Result 6239 states and 8777 transitions. [2021-11-13 18:39:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:39:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 194 [2021-11-13 18:39:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:41,801 INFO L225 Difference]: With dead ends: 6239 [2021-11-13 18:39:41,802 INFO L226 Difference]: Without dead ends: 4988 [2021-11-13 18:39:41,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:39:41,811 INFO L933 BasicCegarLoop]: 2007 mSDtfsCounter, 2207 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 2940 mSolverCounterSat, 2118 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10531.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 5061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.16ms SdHoareTripleChecker+Time, 2118 IncrementalHoareTripleChecker+Valid, 2940 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11552.65ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:41,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2453 Valid, 4899 Invalid, 5061 Unknown, 0 Unchecked, 36.16ms Time], IncrementalHoareTripleChecker [2118 Valid, 2940 Invalid, 3 Unknown, 0 Unchecked, 11552.65ms Time] [2021-11-13 18:39:41,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-11-13 18:39:42,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4818. [2021-11-13 18:39:42,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4818 states, 3269 states have (on average 1.262159681859896) internal successors, (4126), 3405 states have internal predecessors, (4126), 1264 states have call successors, (1264), 290 states have call predecessors, (1264), 284 states have return successors, (1338), 1193 states have call predecessors, (1338), 1262 states have call successors, (1338) [2021-11-13 18:39:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 6728 transitions. [2021-11-13 18:39:42,257 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 6728 transitions. Word has length 194 [2021-11-13 18:39:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:42,257 INFO L470 AbstractCegarLoop]: Abstraction has 4818 states and 6728 transitions. [2021-11-13 18:39:42,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 18:39:42,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 6728 transitions. [2021-11-13 18:39:42,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 18:39:42,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:42,265 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:39:42,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 18:39:42,265 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:42,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:42,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1940953765, now seen corresponding path program 1 times [2021-11-13 18:39:42,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:42,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401632813] [2021-11-13 18:39:42,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:42,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:39:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 18:39:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:39:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 18:39:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:39:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 18:39:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:39:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 18:39:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 18:39:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:39:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:39:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:39:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-13 18:39:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:39:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-13 18:39:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-13 18:39:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:39:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-13 18:39:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:39:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 18:39:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-13 18:39:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-13 18:39:42,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:42,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401632813] [2021-11-13 18:39:42,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401632813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:42,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:42,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:39:42,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337911024] [2021-11-13 18:39:42,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:42,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:39:42,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:42,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:39:42,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:39:42,693 INFO L87 Difference]: Start difference. First operand 4818 states and 6728 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 18:39:44,748 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 18:39:46,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:49,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:39:55,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:39:55,325 INFO L93 Difference]: Finished difference Result 8947 states and 12665 transitions. [2021-11-13 18:39:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:39:55,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 210 [2021-11-13 18:39:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:39:55,359 INFO L225 Difference]: With dead ends: 8947 [2021-11-13 18:39:55,359 INFO L226 Difference]: Without dead ends: 5000 [2021-11-13 18:39:55,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 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 18:39:55,381 INFO L933 BasicCegarLoop]: 2001 mSDtfsCounter, 1760 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 2133 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10955.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 5068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.67ms SdHoareTripleChecker+Time, 2133 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12054.56ms IncrementalHoareTripleChecker+Time [2021-11-13 18:39:55,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 5475 Invalid, 5068 Unknown, 0 Unchecked, 40.67ms Time], IncrementalHoareTripleChecker [2133 Valid, 2932 Invalid, 3 Unknown, 0 Unchecked, 12054.56ms Time] [2021-11-13 18:39:55,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2021-11-13 18:39:55,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 4826. [2021-11-13 18:39:55,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4826 states, 3275 states have (on average 1.2622900763358778) internal successors, (4134), 3409 states have internal predecessors, (4134), 1266 states have call successors, (1266), 290 states have call predecessors, (1266), 284 states have return successors, (1340), 1197 states have call predecessors, (1340), 1264 states have call successors, (1340) [2021-11-13 18:39:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4826 states to 4826 states and 6740 transitions. [2021-11-13 18:39:55,857 INFO L78 Accepts]: Start accepts. Automaton has 4826 states and 6740 transitions. Word has length 210 [2021-11-13 18:39:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:39:55,858 INFO L470 AbstractCegarLoop]: Abstraction has 4826 states and 6740 transitions. [2021-11-13 18:39:55,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 18:39:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4826 states and 6740 transitions. [2021-11-13 18:39:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-13 18:39:55,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:39:55,865 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:55,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 18:39:55,865 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:39:55,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:39:55,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1839386694, now seen corresponding path program 1 times [2021-11-13 18:39:55,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:39:55,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130203456] [2021-11-13 18:39:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:39:55,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:39:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:39:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:39:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:39:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:39:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:39:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:39:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:39:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:39:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:39:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:39:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 18:39:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:39:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:39:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-13 18:39:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:39:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 18:39:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:39:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:39:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:39:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:39:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-13 18:39:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:39:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 18:39:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-13 18:39:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:39:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:39:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-13 18:39:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-13 18:39:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:39:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-13 18:39:56,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:39:56,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130203456] [2021-11-13 18:39:56,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130203456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:39:56,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:39:56,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:39:56,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079480413] [2021-11-13 18:39:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:39:56,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:39:56,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:39:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:39:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:39:56,471 INFO L87 Difference]: Start difference. First operand 4826 states and 6740 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 18:39:58,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:00,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:02,890 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 18:40:09,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:09,562 INFO L93 Difference]: Finished difference Result 9029 states and 12781 transitions. [2021-11-13 18:40:09,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:40:09,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 248 [2021-11-13 18:40:09,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:09,593 INFO L225 Difference]: With dead ends: 9029 [2021-11-13 18:40:09,593 INFO L226 Difference]: Without dead ends: 5074 [2021-11-13 18:40:09,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:40:09,615 INFO L933 BasicCegarLoop]: 2004 mSDtfsCounter, 1821 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 2202 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11373.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 5489 SdHoareTripleChecker+Invalid, 5170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.25ms SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12451.06ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:09,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1929 Valid, 5489 Invalid, 5170 Unknown, 0 Unchecked, 44.25ms Time], IncrementalHoareTripleChecker [2202 Valid, 2965 Invalid, 3 Unknown, 0 Unchecked, 12451.06ms Time] [2021-11-13 18:40:09,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5074 states. [2021-11-13 18:40:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5074 to 4831. [2021-11-13 18:40:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4831 states, 3280 states have (on average 1.261890243902439) internal successors, (4139), 3414 states have internal predecessors, (4139), 1266 states have call successors, (1266), 290 states have call predecessors, (1266), 284 states have return successors, (1340), 1197 states have call predecessors, (1340), 1264 states have call successors, (1340) [2021-11-13 18:40:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 6745 transitions. [2021-11-13 18:40:10,193 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 6745 transitions. Word has length 248 [2021-11-13 18:40:10,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:10,194 INFO L470 AbstractCegarLoop]: Abstraction has 4831 states and 6745 transitions. [2021-11-13 18:40:10,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 18:40:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 6745 transitions. [2021-11-13 18:40:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-13 18:40:10,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:10,204 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:10,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 18:40:10,205 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 714701764, now seen corresponding path program 1 times [2021-11-13 18:40:10,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:10,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868829493] [2021-11-13 18:40:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:40:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:40:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:40:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:40:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:40:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:40:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:40:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:40:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 18:40:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:40:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:40:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-13 18:40:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:40:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 18:40:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:40:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:40:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:40:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:40:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-13 18:40:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:40:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 18:40:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-13 18:40:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:40:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-13 18:40:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-13 18:40:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-13 18:40:10,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:10,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868829493] [2021-11-13 18:40:10,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868829493] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:40:10,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889044087] [2021-11-13 18:40:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:10,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:40:10,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:40:10,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:40:10,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:40:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:12,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:40:12,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:40:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-13 18:40:12,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:40:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-11-13 18:40:13,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889044087] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:40:13,214 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:40:13,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2021-11-13 18:40:13,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907638167] [2021-11-13 18:40:13,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:40:13,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:40:13,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:40:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:40:13,217 INFO L87 Difference]: Start difference. First operand 4831 states and 6745 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (47), 5 states have call predecessors, (47), 2 states have return successors, (34), 2 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-13 18:40:15,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:17,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:19,610 WARN L515 Checker$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 18:40:27,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:27,474 INFO L93 Difference]: Finished difference Result 9276 states and 13152 transitions. [2021-11-13 18:40:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:40:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (47), 5 states have call predecessors, (47), 2 states have return successors, (34), 2 states have call predecessors, (34), 3 states have call successors, (34) Word has length 256 [2021-11-13 18:40:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:27,497 INFO L225 Difference]: With dead ends: 9276 [2021-11-13 18:40:27,497 INFO L226 Difference]: Without dead ends: 5316 [2021-11-13 18:40:27,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:40:27,514 INFO L933 BasicCegarLoop]: 2003 mSDtfsCounter, 2114 mSDsluCounter, 4918 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 2510 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12124.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 6921 SdHoareTripleChecker+Invalid, 6614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.32ms SdHoareTripleChecker+Time, 2510 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13366.60ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:27,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2222 Valid, 6921 Invalid, 6614 Unknown, 0 Unchecked, 52.32ms Time], IncrementalHoareTripleChecker [2510 Valid, 4101 Invalid, 3 Unknown, 0 Unchecked, 13366.60ms Time] [2021-11-13 18:40:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5316 states. [2021-11-13 18:40:28,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5316 to 5057. [2021-11-13 18:40:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5057 states, 3440 states have (on average 1.2598837209302325) internal successors, (4334), 3580 states have internal predecessors, (4334), 1332 states have call successors, (1332), 290 states have call predecessors, (1332), 284 states have return successors, (1406), 1263 states have call predecessors, (1406), 1330 states have call successors, (1406) [2021-11-13 18:40:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5057 states to 5057 states and 7072 transitions. [2021-11-13 18:40:28,056 INFO L78 Accepts]: Start accepts. Automaton has 5057 states and 7072 transitions. Word has length 256 [2021-11-13 18:40:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:28,057 INFO L470 AbstractCegarLoop]: Abstraction has 5057 states and 7072 transitions. [2021-11-13 18:40:28,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (47), 5 states have call predecessors, (47), 2 states have return successors, (34), 2 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-13 18:40:28,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5057 states and 7072 transitions. [2021-11-13 18:40:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-13 18:40:28,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:28,069 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:40:28,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:40:28,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:40:28,290 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:28,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:28,290 INFO L85 PathProgramCache]: Analyzing trace with hash 934904667, now seen corresponding path program 1 times [2021-11-13 18:40:28,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:28,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701249060] [2021-11-13 18:40:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:28,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:40:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 18:40:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:40:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 18:40:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:40:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 18:40:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:40:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 18:40:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 18:40:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:40:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:40:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:40:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-13 18:40:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:40:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-13 18:40:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-13 18:40:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:40:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-13 18:40:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:40:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 18:40:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-13 18:40:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-13 18:40:29,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:29,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701249060] [2021-11-13 18:40:29,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701249060] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:40:29,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58066101] [2021-11-13 18:40:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:29,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:40:29,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:40:29,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:40:29,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:40:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:30,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 3114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:40:30,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:40:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-13 18:40:30,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:40:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-13 18:40:31,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58066101] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:40:31,180 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:40:31,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 15 [2021-11-13 18:40:31,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394772526] [2021-11-13 18:40:31,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:40:31,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 18:40:31,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 18:40:31,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-11-13 18:40:31,183 INFO L87 Difference]: Start difference. First operand 5057 states and 7072 transitions. Second operand has 15 states, 15 states have (on average 10.4) internal successors, (156), 12 states have internal predecessors, (156), 3 states have call successors, (39), 5 states have call predecessors, (39), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 18:40:33,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:35,359 WARN L515 Checker$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 18:40:37,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:40:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:40:49,635 INFO L93 Difference]: Finished difference Result 10078 states and 14331 transitions. [2021-11-13 18:40:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-13 18:40:49,635 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.4) internal successors, (156), 12 states have internal predecessors, (156), 3 states have call successors, (39), 5 states have call predecessors, (39), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 242 [2021-11-13 18:40:49,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:40:49,673 INFO L225 Difference]: With dead ends: 10078 [2021-11-13 18:40:49,673 INFO L226 Difference]: Without dead ends: 5892 [2021-11-13 18:40:49,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=487, Invalid=995, Unknown=0, NotChecked=0, Total=1482 [2021-11-13 18:40:49,699 INFO L933 BasicCegarLoop]: 2005 mSDtfsCounter, 2657 mSDsluCounter, 9241 mSDsCounter, 0 mSdLazyCounter, 7520 mSolverCounterSat, 3055 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15508.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2765 SdHoareTripleChecker+Valid, 11246 SdHoareTripleChecker+Invalid, 10578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.06ms SdHoareTripleChecker+Time, 3055 IncrementalHoareTripleChecker+Valid, 7520 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17088.22ms IncrementalHoareTripleChecker+Time [2021-11-13 18:40:49,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2765 Valid, 11246 Invalid, 10578 Unknown, 0 Unchecked, 80.06ms Time], IncrementalHoareTripleChecker [3055 Valid, 7520 Invalid, 3 Unknown, 0 Unchecked, 17088.22ms Time] [2021-11-13 18:40:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2021-11-13 18:40:50,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5513. [2021-11-13 18:40:50,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5513 states, 3764 states have (on average 1.2566418703506907) internal successors, (4730), 3916 states have internal predecessors, (4730), 1464 states have call successors, (1464), 290 states have call predecessors, (1464), 284 states have return successors, (1538), 1395 states have call predecessors, (1538), 1462 states have call successors, (1538) [2021-11-13 18:40:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 7732 transitions. [2021-11-13 18:40:50,359 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 7732 transitions. Word has length 242 [2021-11-13 18:40:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:40:50,359 INFO L470 AbstractCegarLoop]: Abstraction has 5513 states and 7732 transitions. [2021-11-13 18:40:50,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.4) internal successors, (156), 12 states have internal predecessors, (156), 3 states have call successors, (39), 5 states have call predecessors, (39), 2 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 18:40:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 7732 transitions. [2021-11-13 18:40:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-13 18:40:50,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:40:50,373 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-13 18:40:50,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:40:50,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:40:50,600 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:40:50,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:40:50,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2066893047, now seen corresponding path program 1 times [2021-11-13 18:40:50,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:40:50,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919803320] [2021-11-13 18:40:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:40:50,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:40:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:40:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:40:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:40:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:40:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:40:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:40:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:40:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:40:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 18:40:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:40:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:40:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:40:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 18:40:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-13 18:40:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-13 18:40:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:40:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:40:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:40:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:40:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:40:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-13 18:40:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-13 18:40:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-13 18:40:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-13 18:40:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:40:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:40:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-13 18:40:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-13 18:40:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-13 18:40:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:40:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2021-11-13 18:40:54,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:40:54,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919803320] [2021-11-13 18:40:54,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919803320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:40:54,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:40:54,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:40:54,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129659758] [2021-11-13 18:40:54,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:40:54,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:40:54,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:40:54,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:40:54,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:40:54,396 INFO L87 Difference]: Start difference. First operand 5513 states and 7732 transitions. Second operand has 9 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 4 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 18:40:56,469 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 18:40:58,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:00,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:11,099 INFO L93 Difference]: Finished difference Result 8465 states and 11936 transitions. [2021-11-13 18:41:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:41:11,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 4 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 290 [2021-11-13 18:41:11,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:11,128 INFO L225 Difference]: With dead ends: 8465 [2021-11-13 18:41:11,129 INFO L226 Difference]: Without dead ends: 5655 [2021-11-13 18:41:11,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:41:11,145 INFO L933 BasicCegarLoop]: 2006 mSDtfsCounter, 1760 mSDsluCounter, 7787 mSDsCounter, 0 mSdLazyCounter, 5871 mSolverCounterSat, 2121 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14367.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 9793 SdHoareTripleChecker+Invalid, 7995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.01ms SdHoareTripleChecker+Time, 2121 IncrementalHoareTripleChecker+Valid, 5871 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15780.32ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:11,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1868 Valid, 9793 Invalid, 7995 Unknown, 0 Unchecked, 79.01ms Time], IncrementalHoareTripleChecker [2121 Valid, 5871 Invalid, 3 Unknown, 0 Unchecked, 15780.32ms Time] [2021-11-13 18:41:11,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2021-11-13 18:41:11,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5171. [2021-11-13 18:41:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 3513 states have (on average 1.2633077142043838) internal successors, (4438), 3652 states have internal predecessors, (4438), 1377 states have call successors, (1377), 292 states have call predecessors, (1377), 280 states have return successors, (1418), 1309 states have call predecessors, (1418), 1377 states have call successors, (1418) [2021-11-13 18:41:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 7233 transitions. [2021-11-13 18:41:11,688 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 7233 transitions. Word has length 290 [2021-11-13 18:41:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:11,689 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 7233 transitions. [2021-11-13 18:41:11,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 16.571428571428573) internal successors, (116), 4 states have internal predecessors, (116), 4 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 18:41:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 7233 transitions. [2021-11-13 18:41:11,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-13 18:41:11,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:11,700 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-13 18:41:11,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 18:41:11,701 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:11,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash 898320895, now seen corresponding path program 1 times [2021-11-13 18:41:11,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:11,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177173694] [2021-11-13 18:41:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:11,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:41:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:41:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:41:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:41:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:41:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:41:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:41:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:41:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 18:41:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:41:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:41:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:41:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 18:41:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-13 18:41:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-13 18:41:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:41:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:41:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-13 18:41:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-13 18:41:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-13 18:41:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-13 18:41:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:41:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:41:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-13 18:41:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-13 18:41:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-13 18:41:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2021-11-13 18:41:14,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:14,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177173694] [2021-11-13 18:41:14,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177173694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:14,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:14,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:41:14,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318123668] [2021-11-13 18:41:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:14,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:41:14,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:14,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:41:14,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:41:14,553 INFO L87 Difference]: Start difference. First operand 5171 states and 7233 transitions. Second operand has 8 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 18:41:16,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:18,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:20,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:29,813 INFO L93 Difference]: Finished difference Result 8178 states and 11513 transitions. [2021-11-13 18:41:29,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:41:29,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) Word has length 288 [2021-11-13 18:41:29,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:29,843 INFO L225 Difference]: With dead ends: 8178 [2021-11-13 18:41:29,844 INFO L226 Difference]: Without dead ends: 5799 [2021-11-13 18:41:29,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-13 18:41:29,853 INFO L933 BasicCegarLoop]: 2031 mSDtfsCounter, 1846 mSDsluCounter, 6367 mSDsCounter, 0 mSdLazyCounter, 4905 mSolverCounterSat, 2059 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13144.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 8398 SdHoareTripleChecker+Invalid, 6967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.85ms SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 4905 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14430.82ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:29,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1985 Valid, 8398 Invalid, 6967 Unknown, 0 Unchecked, 70.85ms Time], IncrementalHoareTripleChecker [2059 Valid, 4905 Invalid, 3 Unknown, 0 Unchecked, 14430.82ms Time] [2021-11-13 18:41:29,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2021-11-13 18:41:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5172. [2021-11-13 18:41:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 3514 states have (on average 1.2629482071713147) internal successors, (4438), 3652 states have internal predecessors, (4438), 1377 states have call successors, (1377), 293 states have call predecessors, (1377), 280 states have return successors, (1403), 1309 states have call predecessors, (1403), 1377 states have call successors, (1403) [2021-11-13 18:41:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7218 transitions. [2021-11-13 18:41:30,354 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7218 transitions. Word has length 288 [2021-11-13 18:41:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:30,355 INFO L470 AbstractCegarLoop]: Abstraction has 5172 states and 7218 transitions. [2021-11-13 18:41:30,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 4 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-13 18:41:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7218 transitions. [2021-11-13 18:41:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-11-13 18:41:30,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:30,389 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 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, 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] [2021-11-13 18:41:30,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 18:41:30,389 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:30,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash -245005646, now seen corresponding path program 1 times [2021-11-13 18:41:30,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:30,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583615262] [2021-11-13 18:41:30,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:30,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:41:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:41:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:41:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:41:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:41:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:41:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:41:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 18:41:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:41:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:41:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:41:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:41:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 18:41:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:41:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:41:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-13 18:41:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:41:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-13 18:41:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-13 18:41:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-13 18:41:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-13 18:41:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-13 18:41:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:41:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:41:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-13 18:41:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-13 18:41:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-13 18:41:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-13 18:41:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-13 18:41:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-13 18:41:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-13 18:41:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-13 18:41:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-13 18:41:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-13 18:41:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-13 18:41:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-13 18:41:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-13 18:41:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-11-13 18:41:31,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:31,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583615262] [2021-11-13 18:41:31,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583615262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:31,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:41:31,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:41:31,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900112713] [2021-11-13 18:41:31,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:31,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:41:31,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:31,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:41:31,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:41:31,335 INFO L87 Difference]: Start difference. First operand 5172 states and 7218 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 3 states have internal predecessors, (191), 3 states have call successors, (50), 6 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-13 18:41:33,409 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 18:41:35,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:41:37,695 WARN L515 Checker$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 18:41:44,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:44,924 INFO L93 Difference]: Finished difference Result 10843 states and 15190 transitions. [2021-11-13 18:41:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 18:41:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 3 states have internal predecessors, (191), 3 states have call successors, (50), 6 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 3 states have call successors, (49) Word has length 385 [2021-11-13 18:41:44,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:44,951 INFO L225 Difference]: With dead ends: 10843 [2021-11-13 18:41:44,951 INFO L226 Difference]: Without dead ends: 5689 [2021-11-13 18:41:44,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-13 18:41:44,969 INFO L933 BasicCegarLoop]: 1923 mSDtfsCounter, 2365 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 2781 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11586.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 5184 SdHoareTripleChecker+Invalid, 5686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.24ms SdHoareTripleChecker+Time, 2781 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12818.79ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:44,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2472 Valid, 5184 Invalid, 5686 Unknown, 0 Unchecked, 45.24ms Time], IncrementalHoareTripleChecker [2781 Valid, 2902 Invalid, 3 Unknown, 0 Unchecked, 12818.79ms Time] [2021-11-13 18:41:44,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2021-11-13 18:41:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5197. [2021-11-13 18:41:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 3539 states have (on average 1.2625035320712066) internal successors, (4468), 3677 states have internal predecessors, (4468), 1377 states have call successors, (1377), 293 states have call predecessors, (1377), 280 states have return successors, (1403), 1309 states have call predecessors, (1403), 1377 states have call successors, (1403) [2021-11-13 18:41:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 7248 transitions. [2021-11-13 18:41:45,502 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 7248 transitions. Word has length 385 [2021-11-13 18:41:45,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:45,502 INFO L470 AbstractCegarLoop]: Abstraction has 5197 states and 7248 transitions. [2021-11-13 18:41:45,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 3 states have internal predecessors, (191), 3 states have call successors, (50), 6 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-13 18:41:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 7248 transitions. [2021-11-13 18:41:45,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-11-13 18:41:45,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:41:45,536 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 8, 8, 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, 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] [2021-11-13 18:41:45,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 18:41:45,537 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:41:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:41:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash -699964393, now seen corresponding path program 1 times [2021-11-13 18:41:45,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:41:45,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551416249] [2021-11-13 18:41:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:45,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:41:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:41:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-13 18:41:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 18:41:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-13 18:41:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:41:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 18:41:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-13 18:41:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-13 18:41:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-13 18:41:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 18:41:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:41:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:41:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:41:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-13 18:41:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-13 18:41:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:41:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:41:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:41:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:41:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-13 18:41:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-13 18:41:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-13 18:41:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-13 18:41:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-13 18:41:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:41:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:41:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-13 18:41:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-13 18:41:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-13 18:41:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-13 18:41:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-13 18:41:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-13 18:41:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-13 18:41:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:41:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-13 18:41:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-13 18:41:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-13 18:41:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-13 18:41:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-11-13 18:41:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-13 18:41:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-11-13 18:41:46,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:41:46,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551416249] [2021-11-13 18:41:46,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551416249] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:41:46,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610227801] [2021-11-13 18:41:46,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:41:46,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:41:46,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:41:46,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:41:46,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:41:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:41:47,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 3944 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:41:47,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:41:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2021-11-13 18:41:48,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:41:48,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610227801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:41:48,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:41:48,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-13 18:41:48,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186980343] [2021-11-13 18:41:48,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:41:48,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:41:48,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:41:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:41:48,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:41:48,578 INFO L87 Difference]: Start difference. First operand 5197 states and 7248 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-13 18:41:49,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:41:49,087 INFO L93 Difference]: Finished difference Result 7208 states and 10069 transitions. [2021-11-13 18:41:49,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:41:49,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) Word has length 389 [2021-11-13 18:41:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:41:49,090 INFO L225 Difference]: With dead ends: 7208 [2021-11-13 18:41:49,090 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:41:49,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:41:49,108 INFO L933 BasicCegarLoop]: 2322 mSDtfsCounter, 809 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.73ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.37ms IncrementalHoareTripleChecker+Time [2021-11-13 18:41:49,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 3768 Invalid, 3 Unknown, 0 Unchecked, 6.73ms Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 54.37ms Time] [2021-11-13 18:41:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:41:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:41:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:41:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:41:49,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 389 [2021-11-13 18:41:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:41:49,113 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:41:49,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 2 states have call successors, (50), 2 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-13 18:41:49,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:41:49,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:41:49,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:41:49,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:41:49,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eb3b018-9eef-4820-a051-7cd21cfbcb2a/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:41:49,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.