./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7001fc39e766418166b5245dd523731096962c63b3f1d8b8399a7fc1e7a88c5f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:47:52,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:47:52,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:47:52,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:47:52,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:47:52,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:47:52,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:47:52,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:47:52,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:47:52,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:47:52,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:47:52,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:47:52,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:47:52,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:47:52,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:47:52,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:47:52,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:47:52,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:47:52,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:47:52,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:47:52,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:47:52,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:47:52,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:47:52,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:47:52,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:47:52,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:47:52,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:47:52,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:47:52,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:47:52,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:47:52,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:47:52,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:47:52,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:47:52,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:47:52,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:47:52,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:47:52,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:47:52,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:47:52,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:47:52,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:47:52,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:47:52,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 05:47:52,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:47:52,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:47:52,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:47:52,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:47:52,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:47:52,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:47:52,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:47:52,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:47:52,640 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:47:52,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:47:52,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:47:52,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:47:52,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:47:52,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:47:52,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:47:52,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:47:52,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:47:52,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:47:52,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:47:52,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:47:52,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:47:52,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:47:52,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:47:52,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:47:52,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:47:52,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:47:52,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:47:52,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:47:52,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:47:52,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:47:52,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:47:52,645 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_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7001fc39e766418166b5245dd523731096962c63b3f1d8b8399a7fc1e7a88c5f [2021-11-20 05:47:52,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:47:52,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:47:52,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:47:52,931 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:47:52,932 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:47:52,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2021-11-20 05:47:53,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/data/56c10d5ff/8cd7d7852f7246aba699a4bc39e5979d/FLAGd5b76d151 [2021-11-20 05:47:53,980 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:47:53,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2021-11-20 05:47:54,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/data/56c10d5ff/8cd7d7852f7246aba699a4bc39e5979d/FLAGd5b76d151 [2021-11-20 05:47:54,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/data/56c10d5ff/8cd7d7852f7246aba699a4bc39e5979d [2021-11-20 05:47:54,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:47:54,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:47:54,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:54,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:47:54,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:47:54,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:54" (1/1) ... [2021-11-20 05:47:54,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e912dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:54, skipping insertion in model container [2021-11-20 05:47:54,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:54" (1/1) ... [2021-11-20 05:47:54,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:47:54,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:47:55,329 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6037] [2021-11-20 05:47:55,330 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6038-6039] [2021-11-20 05:47:55,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i[185861,185874] [2021-11-20 05:47:57,074 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-20 05:47:57,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:57,144 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:47:57,285 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6037] [2021-11-20 05:47:57,286 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6038-6039] [2021-11-20 05:47:57,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i[185861,185874] [2021-11-20 05:47:57,736 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-20 05:47:57,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:57,849 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:47:57,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57 WrapperNode [2021-11-20 05:47:57,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:57,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:57,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:47:57,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:47:57,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:57,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,126 INFO L137 Inliner]: procedures = 259, calls = 2016, calls flagged for inlining = 128, calls inlined = 102, statements flattened = 4816 [2021-11-20 05:47:58,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:58,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:47:58,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:47:58,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:47:58,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:47:58,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:47:58,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:47:58,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:47:58,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (1/1) ... [2021-11-20 05:47:58,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:47:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:58,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:58,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:47:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure he_remove_one [2021-11-20 05:47:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure he_remove_one [2021-11-20 05:47:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 05:47:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 05:47:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-11-20 05:47:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-11-20 05:47:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 05:47:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 05:47:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 05:47:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure he_close [2021-11-20 05:47:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure he_close [2021-11-20 05:47:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-11-20 05:47:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-11-20 05:47:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 05:47:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 05:47:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 05:47:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 05:47:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:47:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:47:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_get [2021-11-20 05:47:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_get [2021-11-20 05:47:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-20 05:47:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-20 05:47:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 05:47:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 05:47:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_tpd [2021-11-20 05:47:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_tpd [2021-11-20 05:47:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure rate_to_atmf [2021-11-20 05:47:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_to_atmf [2021-11-20 05:47:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 05:47:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 05:47:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 05:47:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 05:47:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 05:47:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 05:47:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_put [2021-11-20 05:47:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_put [2021-11-20 05:47:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:47:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:47:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 05:47:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 05:47:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 05:47:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 05:47:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:47:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 05:47:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 05:47:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:47:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-11-20 05:47:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-11-20 05:47:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-20 05:47:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-20 05:47:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 05:47:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 05:47:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-11-20 05:47:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-11-20 05:47:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 05:47:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 05:47:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure he_readl_internal [2021-11-20 05:47:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure he_readl_internal [2021-11-20 05:47:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:47:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:47:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 05:47:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 05:47:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-20 05:47:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-20 05:47:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-20 05:47:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-20 05:47:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 05:47:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 05:47:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure he_send [2021-11-20 05:47:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure he_send [2021-11-20 05:47:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-11-20 05:47:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-11-20 05:47:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 05:47:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 05:47:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 05:47:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 05:47:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-20 05:47:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-20 05:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 05:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 05:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure he_writel_internal [2021-11-20 05:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure he_writel_internal [2021-11-20 05:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure he_ioctl [2021-11-20 05:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure he_ioctl [2021-11-20 05:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:47:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure he_open [2021-11-20 05:47:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure he_open [2021-11-20 05:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 05:47:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 05:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 05:47:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 05:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 05:47:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 05:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 05:47:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 05:47:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 05:47:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 05:47:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:47:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 05:47:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 05:47:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure he_stop [2021-11-20 05:47:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure he_stop [2021-11-20 05:47:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 05:47:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 05:47:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:47:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 05:47:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 05:47:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure __enqueue_tpd [2021-11-20 05:47:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __enqueue_tpd [2021-11-20 05:47:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-20 05:47:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-20 05:47:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:47:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 05:47:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 05:47:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-20 05:47:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-20 05:47:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 05:47:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 05:47:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:47:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-20 05:47:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-20 05:47:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 05:47:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-20 05:47:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-20 05:47:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 05:47:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 05:47:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 05:47:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 05:47:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-20 05:47:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-20 05:47:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2021-11-20 05:47:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2021-11-20 05:47:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure read_prom_byte [2021-11-20 05:47:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure read_prom_byte [2021-11-20 05:47:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 05:47:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 05:47:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-20 05:47:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-20 05:47:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 05:47:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 05:47:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 05:47:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 05:47:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-20 05:47:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-20 05:47:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:47:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 05:47:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 05:47:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:47:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:47:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-11-20 05:47:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-11-20 05:47:59,366 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:47:59,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:47:59,747 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 05:48:03,334 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:48:03,359 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:48:03,359 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:48:03,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:03 BoogieIcfgContainer [2021-11-20 05:48:03,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:48:03,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:48:03,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:48:03,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:48:03,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:47:54" (1/3) ... [2021-11-20 05:48:03,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc7fdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:48:03, skipping insertion in model container [2021-11-20 05:48:03,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:57" (2/3) ... [2021-11-20 05:48:03,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc7fdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:48:03, skipping insertion in model container [2021-11-20 05:48:03,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:03" (3/3) ... [2021-11-20 05:48:03,374 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2021-11-20 05:48:03,379 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:48:03,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:48:03,439 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:48:03,446 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:48:03,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:48:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1106 states have (on average 1.298372513562387) internal successors, (1436), 1129 states have internal predecessors, (1436), 510 states have call successors, (510), 69 states have call predecessors, (510), 68 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) [2021-11-20 05:48:03,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 05:48:03,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:03,523 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:03,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1467579896, now seen corresponding path program 1 times [2021-11-20 05:48:03,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:03,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906361794] [2021-11-20 05:48:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:03,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:03,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:04,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:04,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 05:48:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-20 05:48:04,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:04,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906361794] [2021-11-20 05:48:04,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906361794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:04,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:04,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:48:04,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62307442] [2021-11-20 05:48:04,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:04,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:48:04,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:04,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:48:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:04,145 INFO L87 Difference]: Start difference. First operand has 1686 states, 1106 states have (on average 1.298372513562387) internal successors, (1436), 1129 states have internal predecessors, (1436), 510 states have call successors, (510), 69 states have call predecessors, (510), 68 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 05:48:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:11,708 INFO L93 Difference]: Finished difference Result 4826 states and 7102 transitions. [2021-11-20 05:48:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:48:11,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2021-11-20 05:48:11,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:11,782 INFO L225 Difference]: With dead ends: 4826 [2021-11-20 05:48:11,783 INFO L226 Difference]: Without dead ends: 3112 [2021-11-20 05:48:11,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:48:11,809 INFO L933 BasicCegarLoop]: 3501 mSDtfsCounter, 2611 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 1739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3008 SdHoareTripleChecker+Valid, 8267 SdHoareTripleChecker+Invalid, 4382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:11,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3008 Valid, 8267 Invalid, 4382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1739 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-20 05:48:11,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2021-11-20 05:48:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 2863. [2021-11-20 05:48:12,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2863 states, 1872 states have (on average 1.2788461538461537) internal successors, (2394), 1894 states have internal predecessors, (2394), 877 states have call successors, (877), 115 states have call predecessors, (877), 113 states have return successors, (876), 866 states have call predecessors, (876), 876 states have call successors, (876) [2021-11-20 05:48:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 4147 transitions. [2021-11-20 05:48:12,276 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 4147 transitions. Word has length 61 [2021-11-20 05:48:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:12,278 INFO L470 AbstractCegarLoop]: Abstraction has 2863 states and 4147 transitions. [2021-11-20 05:48:12,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 05:48:12,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 4147 transitions. [2021-11-20 05:48:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 05:48:12,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:12,292 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:12,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:48:12,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:12,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:12,294 INFO L85 PathProgramCache]: Analyzing trace with hash 528262647, now seen corresponding path program 1 times [2021-11-20 05:48:12,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:12,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368279617] [2021-11-20 05:48:12,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:12,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 05:48:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-20 05:48:12,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:12,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368279617] [2021-11-20 05:48:12,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368279617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:12,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:12,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:48:12,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178422978] [2021-11-20 05:48:12,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:12,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:12,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:12,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:12,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:12,673 INFO L87 Difference]: Start difference. First operand 2863 states and 4147 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 05:48:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:17,499 INFO L93 Difference]: Finished difference Result 6615 states and 9571 transitions. [2021-11-20 05:48:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:48:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2021-11-20 05:48:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:17,540 INFO L225 Difference]: With dead ends: 6615 [2021-11-20 05:48:17,540 INFO L226 Difference]: Without dead ends: 3765 [2021-11-20 05:48:17,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:17,561 INFO L933 BasicCegarLoop]: 3024 mSDtfsCounter, 1233 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:17,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 6242 Invalid, 2065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [696 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-20 05:48:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2021-11-20 05:48:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3694. [2021-11-20 05:48:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 2441 states have (on average 1.2908643998361327) internal successors, (3151), 2476 states have internal predecessors, (3151), 1083 states have call successors, (1083), 171 states have call predecessors, (1083), 169 states have return successors, (1082), 1068 states have call predecessors, (1082), 1082 states have call successors, (1082) [2021-11-20 05:48:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5316 transitions. [2021-11-20 05:48:17,946 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 5316 transitions. Word has length 69 [2021-11-20 05:48:17,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:17,947 INFO L470 AbstractCegarLoop]: Abstraction has 3694 states and 5316 transitions. [2021-11-20 05:48:17,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 05:48:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 5316 transitions. [2021-11-20 05:48:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-20 05:48:17,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:17,952 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-20 05:48:17,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:48:17,953 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:17,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:17,953 INFO L85 PathProgramCache]: Analyzing trace with hash 441630700, now seen corresponding path program 1 times [2021-11-20 05:48:17,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:17,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822190791] [2021-11-20 05:48:17,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:17,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 05:48:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-20 05:48:18,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:18,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822190791] [2021-11-20 05:48:18,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822190791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:18,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:18,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:48:18,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187005652] [2021-11-20 05:48:18,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:18,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:18,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:18,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:18,239 INFO L87 Difference]: Start difference. First operand 3694 states and 5316 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-20 05:48:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:23,345 INFO L93 Difference]: Finished difference Result 8748 states and 12550 transitions. [2021-11-20 05:48:23,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:48:23,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 87 [2021-11-20 05:48:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:23,459 INFO L225 Difference]: With dead ends: 8748 [2021-11-20 05:48:23,459 INFO L226 Difference]: Without dead ends: 5078 [2021-11-20 05:48:23,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:23,486 INFO L933 BasicCegarLoop]: 3358 mSDtfsCounter, 2211 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 5670 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:23,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2656 Valid, 5670 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-20 05:48:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2021-11-20 05:48:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 4980. [2021-11-20 05:48:23,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4980 states, 3325 states have (on average 1.2947368421052632) internal successors, (4305), 3377 states have internal predecessors, (4305), 1396 states have call successors, (1396), 260 states have call predecessors, (1396), 258 states have return successors, (1395), 1375 states have call predecessors, (1395), 1395 states have call successors, (1395) [2021-11-20 05:48:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 7096 transitions. [2021-11-20 05:48:23,824 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 7096 transitions. Word has length 87 [2021-11-20 05:48:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:23,825 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 7096 transitions. [2021-11-20 05:48:23,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-20 05:48:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 7096 transitions. [2021-11-20 05:48:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 05:48:23,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:23,830 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-11-20 05:48:23,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:48:23,831 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:23,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:23,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2087155472, now seen corresponding path program 1 times [2021-11-20 05:48:23,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:23,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114720055] [2021-11-20 05:48:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:23,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:48:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-20 05:48:24,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:24,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114720055] [2021-11-20 05:48:24,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114720055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:24,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:24,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:48:24,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089868356] [2021-11-20 05:48:24,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:24,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:48:24,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:48:24,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:24,111 INFO L87 Difference]: Start difference. First operand 4980 states and 7096 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 05:48:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:27,152 INFO L93 Difference]: Finished difference Result 5349 states and 7545 transitions. [2021-11-20 05:48:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:48:27,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 82 [2021-11-20 05:48:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:27,190 INFO L225 Difference]: With dead ends: 5349 [2021-11-20 05:48:27,191 INFO L226 Difference]: Without dead ends: 5346 [2021-11-20 05:48:27,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:48:27,196 INFO L933 BasicCegarLoop]: 2332 mSDtfsCounter, 2297 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 1267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1267 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:27,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2633 Valid, 3736 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1267 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 05:48:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2021-11-20 05:48:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 5242. [2021-11-20 05:48:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 3506 states have (on average 1.2875071306332002) internal successors, (4514), 3558 states have internal predecessors, (4514), 1430 states have call successors, (1430), 307 states have call predecessors, (1430), 305 states have return successors, (1429), 1409 states have call predecessors, (1429), 1429 states have call successors, (1429) [2021-11-20 05:48:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 7373 transitions. [2021-11-20 05:48:27,550 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 7373 transitions. Word has length 82 [2021-11-20 05:48:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:27,551 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 7373 transitions. [2021-11-20 05:48:27,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-20 05:48:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 7373 transitions. [2021-11-20 05:48:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 05:48:27,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:27,560 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-20 05:48:27,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:48:27,561 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash -659372430, now seen corresponding path program 1 times [2021-11-20 05:48:27,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:27,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576825953] [2021-11-20 05:48:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:27,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:48:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:48:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:48:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:48:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 05:48:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-20 05:48:27,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:27,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576825953] [2021-11-20 05:48:27,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576825953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:27,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:27,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:48:27,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16812036] [2021-11-20 05:48:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:27,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:48:27,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:48:27,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:48:27,795 INFO L87 Difference]: Start difference. First operand 5242 states and 7373 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 05:48:32,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:32,193 INFO L93 Difference]: Finished difference Result 10974 states and 15500 transitions. [2021-11-20 05:48:32,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:48:32,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 128 [2021-11-20 05:48:32,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:32,241 INFO L225 Difference]: With dead ends: 10974 [2021-11-20 05:48:32,241 INFO L226 Difference]: Without dead ends: 5756 [2021-11-20 05:48:32,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:48:32,273 INFO L933 BasicCegarLoop]: 2292 mSDtfsCounter, 1164 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 1775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 7343 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1775 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:32,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 7343 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1775 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-20 05:48:32,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-11-20 05:48:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5245. [2021-11-20 05:48:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 3509 states have (on average 1.287261328013679) internal successors, (4517), 3561 states have internal predecessors, (4517), 1430 states have call successors, (1430), 307 states have call predecessors, (1430), 305 states have return successors, (1429), 1409 states have call predecessors, (1429), 1429 states have call successors, (1429) [2021-11-20 05:48:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7376 transitions. [2021-11-20 05:48:32,655 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7376 transitions. Word has length 128 [2021-11-20 05:48:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:32,657 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 7376 transitions. [2021-11-20 05:48:32,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 05:48:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7376 transitions. [2021-11-20 05:48:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 05:48:32,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:32,665 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-20 05:48:32,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:48:32,666 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:32,666 INFO L85 PathProgramCache]: Analyzing trace with hash -229870152, now seen corresponding path program 1 times [2021-11-20 05:48:32,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:32,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474185017] [2021-11-20 05:48:32,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:32,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:48:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:48:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:48:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:48:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-20 05:48:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:32,977 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-20 05:48:32,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:32,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474185017] [2021-11-20 05:48:32,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474185017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:32,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:32,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:48:32,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759838511] [2021-11-20 05:48:32,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:32,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:48:32,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:32,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:48:32,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:48:32,980 INFO L87 Difference]: Start difference. First operand 5245 states and 7376 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 05:48:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:40,336 INFO L93 Difference]: Finished difference Result 14185 states and 20118 transitions. [2021-11-20 05:48:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 05:48:40,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 130 [2021-11-20 05:48:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:40,392 INFO L225 Difference]: With dead ends: 14185 [2021-11-20 05:48:40,392 INFO L226 Difference]: Without dead ends: 8964 [2021-11-20 05:48:40,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:48:40,418 INFO L933 BasicCegarLoop]: 4090 mSDtfsCounter, 4211 mSDsluCounter, 12633 mSDsCounter, 0 mSdLazyCounter, 4415 mSolverCounterSat, 3456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 16723 SdHoareTripleChecker+Invalid, 7871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3456 IncrementalHoareTripleChecker+Valid, 4415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:40,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4657 Valid, 16723 Invalid, 7871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3456 Valid, 4415 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-20 05:48:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8964 states. [2021-11-20 05:48:40,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8964 to 5260. [2021-11-20 05:48:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 3519 states have (on average 1.2870133560670645) internal successors, (4529), 3571 states have internal predecessors, (4529), 1435 states have call successors, (1435), 307 states have call predecessors, (1435), 305 states have return successors, (1434), 1414 states have call predecessors, (1434), 1434 states have call successors, (1434) [2021-11-20 05:48:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 7398 transitions. [2021-11-20 05:48:40,876 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 7398 transitions. Word has length 130 [2021-11-20 05:48:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:40,877 INFO L470 AbstractCegarLoop]: Abstraction has 5260 states and 7398 transitions. [2021-11-20 05:48:40,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 05:48:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 7398 transitions. [2021-11-20 05:48:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-20 05:48:40,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:40,887 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-20 05:48:40,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:48:40,887 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash 471729722, now seen corresponding path program 1 times [2021-11-20 05:48:40,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597144569] [2021-11-20 05:48:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:40,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:48:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-20 05:48:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 05:48:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 05:48:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-20 05:48:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-20 05:48:41,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:41,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597144569] [2021-11-20 05:48:41,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597144569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:41,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:41,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 05:48:41,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739433805] [2021-11-20 05:48:41,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:41,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:48:41,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:48:41,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:48:41,297 INFO L87 Difference]: Start difference. First operand 5260 states and 7398 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 05:48:50,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:50,110 INFO L93 Difference]: Finished difference Result 12779 states and 18381 transitions. [2021-11-20 05:48:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:48:50,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2021-11-20 05:48:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:50,145 INFO L225 Difference]: With dead ends: 12779 [2021-11-20 05:48:50,145 INFO L226 Difference]: Without dead ends: 7543 [2021-11-20 05:48:50,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:48:50,166 INFO L933 BasicCegarLoop]: 2749 mSDtfsCounter, 2169 mSDsluCounter, 13511 mSDsCounter, 0 mSdLazyCounter, 5259 mSolverCounterSat, 2278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 16260 SdHoareTripleChecker+Invalid, 7537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2278 IncrementalHoareTripleChecker+Valid, 5259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:50,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2226 Valid, 16260 Invalid, 7537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2278 Valid, 5259 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2021-11-20 05:48:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2021-11-20 05:48:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 5270. [2021-11-20 05:48:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5270 states, 3527 states have (on average 1.286362347604196) internal successors, (4537), 3579 states have internal predecessors, (4537), 1435 states have call successors, (1435), 307 states have call predecessors, (1435), 307 states have return successors, (1444), 1416 states have call predecessors, (1444), 1434 states have call successors, (1444) [2021-11-20 05:48:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7416 transitions. [2021-11-20 05:48:50,670 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7416 transitions. Word has length 130 [2021-11-20 05:48:50,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:50,671 INFO L470 AbstractCegarLoop]: Abstraction has 5270 states and 7416 transitions. [2021-11-20 05:48:50,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 05:48:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7416 transitions. [2021-11-20 05:48:50,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-20 05:48:50,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:50,680 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-20 05:48:50,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:48:50,680 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:50,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:50,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2042997817, now seen corresponding path program 1 times [2021-11-20 05:48:50,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:50,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597486288] [2021-11-20 05:48:50,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:50,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:48:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:48:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:48:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 05:48:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-20 05:48:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-20 05:48:50,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:50,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597486288] [2021-11-20 05:48:50,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597486288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:50,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:50,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:48:50,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501002543] [2021-11-20 05:48:50,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:50,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:48:50,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:50,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:48:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:48:50,933 INFO L87 Difference]: Start difference. First operand 5270 states and 7416 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-20 05:48:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:58,611 INFO L93 Difference]: Finished difference Result 13964 states and 19614 transitions. [2021-11-20 05:48:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 05:48:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2021-11-20 05:48:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:58,653 INFO L225 Difference]: With dead ends: 13964 [2021-11-20 05:48:58,654 INFO L226 Difference]: Without dead ends: 8718 [2021-11-20 05:48:58,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:48:58,679 INFO L933 BasicCegarLoop]: 3928 mSDtfsCounter, 3092 mSDsluCounter, 7103 mSDsCounter, 0 mSdLazyCounter, 3586 mSolverCounterSat, 2474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 11031 SdHoareTripleChecker+Invalid, 6060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2474 IncrementalHoareTripleChecker+Valid, 3586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:58,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3500 Valid, 11031 Invalid, 6060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2474 Valid, 3586 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-20 05:48:58,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2021-11-20 05:48:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7954. [2021-11-20 05:48:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7954 states, 5348 states have (on average 1.275243081525804) internal successors, (6820), 5420 states have internal predecessors, (6820), 2120 states have call successors, (2120), 485 states have call predecessors, (2120), 485 states have return successors, (2134), 2095 states have call predecessors, (2134), 2119 states have call successors, (2134) [2021-11-20 05:48:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7954 states to 7954 states and 11074 transitions. [2021-11-20 05:48:59,366 INFO L78 Accepts]: Start accepts. Automaton has 7954 states and 11074 transitions. Word has length 137 [2021-11-20 05:48:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:59,367 INFO L470 AbstractCegarLoop]: Abstraction has 7954 states and 11074 transitions. [2021-11-20 05:48:59,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-20 05:48:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7954 states and 11074 transitions. [2021-11-20 05:48:59,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-20 05:48:59,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:59,376 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-11-20 05:48:59,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:48:59,377 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:48:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1550258017, now seen corresponding path program 1 times [2021-11-20 05:48:59,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:59,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794828119] [2021-11-20 05:48:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:59,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:48:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:48:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:48:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:48:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:48:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:48:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:48:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:48:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:48:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:48:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 05:48:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-20 05:48:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-20 05:48:59,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:59,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794828119] [2021-11-20 05:48:59,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794828119] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:59,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:59,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-20 05:48:59,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670960622] [2021-11-20 05:48:59,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:59,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 05:48:59,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:59,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 05:48:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:48:59,982 INFO L87 Difference]: Start difference. First operand 7954 states and 11074 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-20 05:49:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:09,939 INFO L93 Difference]: Finished difference Result 18739 states and 26638 transitions. [2021-11-20 05:49:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 05:49:09,939 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 136 [2021-11-20 05:49:09,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:09,977 INFO L225 Difference]: With dead ends: 18739 [2021-11-20 05:49:09,978 INFO L226 Difference]: Without dead ends: 10809 [2021-11-20 05:49:09,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:49:10,000 INFO L933 BasicCegarLoop]: 2974 mSDtfsCounter, 5567 mSDsluCounter, 19261 mSDsCounter, 0 mSdLazyCounter, 5862 mSolverCounterSat, 5193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5623 SdHoareTripleChecker+Valid, 22235 SdHoareTripleChecker+Invalid, 11055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5193 IncrementalHoareTripleChecker+Valid, 5862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:10,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5623 Valid, 22235 Invalid, 11055 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5193 Valid, 5862 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-11-20 05:49:10,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2021-11-20 05:49:10,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 8589. [2021-11-20 05:49:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8589 states, 5737 states have (on average 1.274359421300331) internal successors, (7311), 5811 states have internal predecessors, (7311), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-11-20 05:49:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8589 states to 8589 states and 12058 transitions. [2021-11-20 05:49:10,748 INFO L78 Accepts]: Start accepts. Automaton has 8589 states and 12058 transitions. Word has length 136 [2021-11-20 05:49:10,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:10,748 INFO L470 AbstractCegarLoop]: Abstraction has 8589 states and 12058 transitions. [2021-11-20 05:49:10,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-20 05:49:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 8589 states and 12058 transitions. [2021-11-20 05:49:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-20 05:49:10,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:10,761 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:10,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:49:10,761 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:10,762 INFO L85 PathProgramCache]: Analyzing trace with hash -423228594, now seen corresponding path program 1 times [2021-11-20 05:49:10,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:10,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484544498] [2021-11-20 05:49:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:10,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:49:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:49:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:49:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:49:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:49:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:49:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-20 05:49:11,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:11,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484544498] [2021-11-20 05:49:11,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484544498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:11,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:11,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:49:11,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243234698] [2021-11-20 05:49:11,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:11,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:49:11,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:11,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:49:11,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:49:11,055 INFO L87 Difference]: Start difference. First operand 8589 states and 12058 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 05:49:17,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:17,008 INFO L93 Difference]: Finished difference Result 18933 states and 26864 transitions. [2021-11-20 05:49:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:49:17,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2021-11-20 05:49:17,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:17,049 INFO L225 Difference]: With dead ends: 18933 [2021-11-20 05:49:17,049 INFO L226 Difference]: Without dead ends: 10368 [2021-11-20 05:49:17,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:49:17,082 INFO L933 BasicCegarLoop]: 2564 mSDtfsCounter, 1335 mSDsluCounter, 7724 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 1279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 10288 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1279 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:17,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 10288 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1279 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-20 05:49:17,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2021-11-20 05:49:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 8597. [2021-11-20 05:49:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8597 states, 5745 states have (on average 1.2739773716275022) internal successors, (7319), 5819 states have internal predecessors, (7319), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-11-20 05:49:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8597 states to 8597 states and 12066 transitions. [2021-11-20 05:49:17,760 INFO L78 Accepts]: Start accepts. Automaton has 8597 states and 12066 transitions. Word has length 150 [2021-11-20 05:49:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:17,760 INFO L470 AbstractCegarLoop]: Abstraction has 8597 states and 12066 transitions. [2021-11-20 05:49:17,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-20 05:49:17,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8597 states and 12066 transitions. [2021-11-20 05:49:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-20 05:49:17,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:17,780 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:17,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:49:17,780 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:17,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:17,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1168965539, now seen corresponding path program 1 times [2021-11-20 05:49:17,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:17,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136991107] [2021-11-20 05:49:17,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:17,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:49:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:49:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:17,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:49:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:49:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:49:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:49:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 05:49:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 05:49:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:49:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 05:49:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:49:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-20 05:49:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-20 05:49:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-20 05:49:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-20 05:49:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-20 05:49:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:49:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-20 05:49:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-20 05:49:18,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:18,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136991107] [2021-11-20 05:49:18,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136991107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:18,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:18,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:49:18,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880147747] [2021-11-20 05:49:18,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:18,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:49:18,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:18,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:49:18,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:49:18,199 INFO L87 Difference]: Start difference. First operand 8597 states and 12066 transitions. Second operand has 6 states, 6 states have (on average 32.5) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (42), 5 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-20 05:49:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:24,259 INFO L93 Difference]: Finished difference Result 17971 states and 25306 transitions. [2021-11-20 05:49:24,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:49:24,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (42), 5 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 326 [2021-11-20 05:49:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:24,298 INFO L225 Difference]: With dead ends: 17971 [2021-11-20 05:49:24,299 INFO L226 Difference]: Without dead ends: 9398 [2021-11-20 05:49:24,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:49:24,329 INFO L933 BasicCegarLoop]: 2288 mSDtfsCounter, 865 mSDsluCounter, 4861 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 1212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 7149 SdHoareTripleChecker+Invalid, 3551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1212 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:24,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 7149 Invalid, 3551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1212 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-20 05:49:24,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9398 states. [2021-11-20 05:49:25,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9398 to 8617. [2021-11-20 05:49:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8617 states, 5765 states have (on average 1.2730268863833478) internal successors, (7339), 5839 states have internal predecessors, (7339), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-11-20 05:49:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 12086 transitions. [2021-11-20 05:49:25,135 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 12086 transitions. Word has length 326 [2021-11-20 05:49:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:25,136 INFO L470 AbstractCegarLoop]: Abstraction has 8617 states and 12086 transitions. [2021-11-20 05:49:25,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (42), 5 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-20 05:49:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 12086 transitions. [2021-11-20 05:49:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-11-20 05:49:25,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:25,156 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:25,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 05:49:25,157 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:25,158 INFO L85 PathProgramCache]: Analyzing trace with hash -990311719, now seen corresponding path program 1 times [2021-11-20 05:49:25,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:25,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442166036] [2021-11-20 05:49:25,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:25,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:49:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:49:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:49:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:49:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:49:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:49:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 05:49:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 05:49:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:49:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 05:49:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:49:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:49:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-20 05:49:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-20 05:49:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-20 05:49:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:49:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:49:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-20 05:49:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:49:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-20 05:49:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-20 05:49:25,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:25,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442166036] [2021-11-20 05:49:25,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442166036] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:25,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328634413] [2021-11-20 05:49:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:25,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:25,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:25,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:25,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:49:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:26,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:49:26,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-11-20 05:49:27,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:27,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328634413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:27,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:27,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-20 05:49:27,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865508397] [2021-11-20 05:49:27,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:27,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:49:27,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:27,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:49:27,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:49:27,519 INFO L87 Difference]: Start difference. First operand 8617 states and 12086 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-20 05:49:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:27,982 INFO L93 Difference]: Finished difference Result 17222 states and 24290 transitions. [2021-11-20 05:49:27,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:49:27,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 394 [2021-11-20 05:49:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:28,037 INFO L225 Difference]: With dead ends: 17222 [2021-11-20 05:49:28,037 INFO L226 Difference]: Without dead ends: 8629 [2021-11-20 05:49:28,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:49:28,070 INFO L933 BasicCegarLoop]: 2418 mSDtfsCounter, 0 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4832 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:28,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4832 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:49:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8629 states. [2021-11-20 05:49:28,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8629 to 8629. [2021-11-20 05:49:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8629 states, 5777 states have (on average 1.2724597541976805) internal successors, (7351), 5851 states have internal predecessors, (7351), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-11-20 05:49:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8629 states to 8629 states and 12098 transitions. [2021-11-20 05:49:28,774 INFO L78 Accepts]: Start accepts. Automaton has 8629 states and 12098 transitions. Word has length 394 [2021-11-20 05:49:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:28,776 INFO L470 AbstractCegarLoop]: Abstraction has 8629 states and 12098 transitions. [2021-11-20 05:49:28,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-20 05:49:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 8629 states and 12098 transitions. [2021-11-20 05:49:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-11-20 05:49:28,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:28,798 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:28,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:29,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 05:49:29,013 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:29,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:29,014 INFO L85 PathProgramCache]: Analyzing trace with hash 935221592, now seen corresponding path program 1 times [2021-11-20 05:49:29,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:29,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130592568] [2021-11-20 05:49:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:29,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:49:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:49:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:49:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:49:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:49:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:49:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 05:49:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 05:49:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:49:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 05:49:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:49:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:49:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-20 05:49:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 05:49:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-20 05:49:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-20 05:49:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:49:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:49:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-20 05:49:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:49:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-20 05:49:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-20 05:49:29,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:29,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130592568] [2021-11-20 05:49:29,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130592568] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:29,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253938315] [2021-11-20 05:49:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:29,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:29,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:29,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:29,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:49:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:30,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:49:30,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-20 05:49:31,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:49:31,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253938315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:31,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:49:31,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2021-11-20 05:49:31,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462275052] [2021-11-20 05:49:31,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:31,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:49:31,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:49:31,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:49:31,250 INFO L87 Difference]: Start difference. First operand 8629 states and 12098 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, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-20 05:49:31,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:31,690 INFO L93 Difference]: Finished difference Result 17300 states and 24278 transitions. [2021-11-20 05:49:31,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:49:31,693 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, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 394 [2021-11-20 05:49:31,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:31,740 INFO L225 Difference]: With dead ends: 17300 [2021-11-20 05:49:31,740 INFO L226 Difference]: Without dead ends: 8695 [2021-11-20 05:49:31,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:49:31,779 INFO L933 BasicCegarLoop]: 2424 mSDtfsCounter, 11 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4830 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:31,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 4830 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:49:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-11-20 05:49:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 8635. [2021-11-20 05:49:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 5783 states have (on average 1.2721770707245375) internal successors, (7357), 5857 states have internal predecessors, (7357), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-11-20 05:49:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 12104 transitions. [2021-11-20 05:49:32,414 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 12104 transitions. Word has length 394 [2021-11-20 05:49:32,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:32,415 INFO L470 AbstractCegarLoop]: Abstraction has 8635 states and 12104 transitions. [2021-11-20 05:49:32,415 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, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-20 05:49:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 12104 transitions. [2021-11-20 05:49:32,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-11-20 05:49:32,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:32,444 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 15, 15, 9, 9, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:32,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:32,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 05:49:32,669 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:32,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:32,670 INFO L85 PathProgramCache]: Analyzing trace with hash 312277472, now seen corresponding path program 1 times [2021-11-20 05:49:32,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:32,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968177696] [2021-11-20 05:49:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:32,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:49:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:49:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:32,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:49:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:49:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:49:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:49:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 05:49:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 05:49:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:49:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 05:49:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:49:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:49:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 05:49:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 05:49:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 05:49:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:49:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 05:49:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:49:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:49:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:49:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:49:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 05:49:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 05:49:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 05:49:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:49:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 05:49:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:49:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:49:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-11-20 05:49:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:49:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 05:49:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-20 05:49:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 05:49:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 05:49:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 05:49:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 05:49:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:49:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-20 05:49:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-20 05:49:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-11-20 05:49:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-20 05:49:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2021-11-20 05:49:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:49:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-11-20 05:49:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 1585 trivial. 0 not checked. [2021-11-20 05:49:33,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968177696] [2021-11-20 05:49:33,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968177696] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:33,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996506637] [2021-11-20 05:49:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:33,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:33,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:33,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:49:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:34,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 3595 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:49:34,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 495 proven. 1 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-11-20 05:49:35,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:49:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 1585 trivial. 0 not checked. [2021-11-20 05:49:36,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996506637] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:49:36,634 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:49:36,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2021-11-20 05:49:36,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551585317] [2021-11-20 05:49:36,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:49:36,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:49:36,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:49:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:49:36,642 INFO L87 Difference]: Start difference. First operand 8635 states and 12104 transitions. Second operand has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 6 states have internal predecessors, (281), 4 states have call successors, (104), 5 states have call predecessors, (104), 2 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) [2021-11-20 05:49:42,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:42,291 INFO L93 Difference]: Finished difference Result 18207 states and 25626 transitions. [2021-11-20 05:49:42,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:49:42,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 6 states have internal predecessors, (281), 4 states have call successors, (104), 5 states have call predecessors, (104), 2 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) Word has length 541 [2021-11-20 05:49:42,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:42,333 INFO L225 Difference]: With dead ends: 18207 [2021-11-20 05:49:42,333 INFO L226 Difference]: Without dead ends: 9596 [2021-11-20 05:49:42,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1248 GetRequests, 1235 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:49:42,365 INFO L933 BasicCegarLoop]: 2289 mSDtfsCounter, 984 mSDsluCounter, 6893 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 1397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 4207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1397 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:42,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 9182 Invalid, 4207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1397 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-20 05:49:42,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9596 states. [2021-11-20 05:49:43,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9596 to 8833. [2021-11-20 05:49:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 5900 states have (on average 1.266779661016949) internal successors, (7474), 5974 states have internal predecessors, (7474), 2447 states have call successors, (2447), 485 states have call predecessors, (2447), 485 states have return successors, (2462), 2421 states have call predecessors, (2462), 2446 states have call successors, (2462) [2021-11-20 05:49:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 12383 transitions. [2021-11-20 05:49:43,139 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 12383 transitions. Word has length 541 [2021-11-20 05:49:43,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:43,140 INFO L470 AbstractCegarLoop]: Abstraction has 8833 states and 12383 transitions. [2021-11-20 05:49:43,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 6 states have internal predecessors, (281), 4 states have call successors, (104), 5 states have call predecessors, (104), 2 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) [2021-11-20 05:49:43,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 12383 transitions. [2021-11-20 05:49:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2021-11-20 05:49:43,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:43,200 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 51, 51, 18, 18, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:43,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:43,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 05:49:43,425 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:43,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:43,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1411629320, now seen corresponding path program 2 times [2021-11-20 05:49:43,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:43,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505204641] [2021-11-20 05:49:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:43,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:49:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:49:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:49:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:49:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:49:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:49:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:49:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:49:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:49:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:49:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:49:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 05:49:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 05:49:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:49:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:49:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 05:49:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:49:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:49:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:49:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:49:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:49:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:49:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:49:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:49:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:49:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:49:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:49:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:49:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:49:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:49:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:49:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-20 05:49:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:49:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 05:49:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:49:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 05:49:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:49:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-20 05:49:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:49:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 05:49:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 05:49:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 05:49:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 05:49:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:49:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:49:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:49:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 05:49:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-20 05:49:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-20 05:49:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-20 05:49:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-11-20 05:49:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:49:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:49:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:49:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:49:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:49:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:49:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:49:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:49:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:49:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:49:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:49:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:49:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-20 05:49:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:49:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 05:49:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:49:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 05:49:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:49:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-20 05:49:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:49:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 05:49:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 05:49:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 05:49:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 05:49:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:49:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:49:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:49:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 05:49:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-20 05:49:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-20 05:49:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-20 05:49:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2021-11-20 05:49:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:49:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:49:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:49:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:49:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:49:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:49:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:49:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:49:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:49:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:49:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:49:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:49:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:49:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:49:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:49:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:49:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:49:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-20 05:49:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-20 05:49:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 05:49:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 05:49:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 05:49:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:49:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:49:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 05:49:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-20 05:49:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-20 05:49:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 05:49:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 05:49:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 05:49:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 05:49:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 05:49:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:49:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:49:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 05:49:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:49:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 05:49:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-20 05:49:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-20 05:49:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-20 05:49:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2021-11-20 05:49:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2021-11-20 05:49:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2021-11-20 05:49:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 912 [2021-11-20 05:49:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 917 [2021-11-20 05:49:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:49:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:49:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2021-11-20 05:49:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 11667 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 11657 trivial. 0 not checked. [2021-11-20 05:49:44,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:44,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505204641] [2021-11-20 05:49:44,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505204641] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:49:44,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129004770] [2021-11-20 05:49:44,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:49:44,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:44,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:44,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:49:44,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:49:45,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:49:45,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:49:45,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 5026 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:49:45,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:49:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 11667 backedges. 3210 proven. 64 refuted. 0 times theorem prover too weak. 8393 trivial. 0 not checked. [2021-11-20 05:49:47,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:49:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 11667 backedges. 10 proven. 820 refuted. 0 times theorem prover too weak. 10837 trivial. 0 not checked. [2021-11-20 05:49:49,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129004770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:49:49,709 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:49:49,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2021-11-20 05:49:49,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507929977] [2021-11-20 05:49:49,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:49:49,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:49:49,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:49,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:49:49,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:49:49,718 INFO L87 Difference]: Start difference. First operand 8833 states and 12383 transitions. Second operand has 15 states, 15 states have (on average 21.0) internal successors, (315), 12 states have internal predecessors, (315), 10 states have call successors, (125), 5 states have call predecessors, (125), 2 states have return successors, (110), 10 states have call predecessors, (110), 10 states have call successors, (110) [2021-11-20 05:49:57,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 05:49:58,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:58,436 INFO L93 Difference]: Finished difference Result 18869 states and 26605 transitions. [2021-11-20 05:49:58,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 05:49:58,437 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 21.0) internal successors, (315), 12 states have internal predecessors, (315), 10 states have call successors, (125), 5 states have call predecessors, (125), 2 states have return successors, (110), 10 states have call predecessors, (110), 10 states have call successors, (110) Word has length 982 [2021-11-20 05:49:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:58,493 INFO L225 Difference]: With dead ends: 18869 [2021-11-20 05:49:58,493 INFO L226 Difference]: Without dead ends: 10060 [2021-11-20 05:49:58,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2301 GetRequests, 2278 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2021-11-20 05:49:58,532 INFO L933 BasicCegarLoop]: 2303 mSDtfsCounter, 1174 mSDsluCounter, 12827 mSDsCounter, 0 mSdLazyCounter, 4758 mSolverCounterSat, 1711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 15130 SdHoareTripleChecker+Invalid, 6469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1711 IncrementalHoareTripleChecker+Valid, 4758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:58,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 15130 Invalid, 6469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1711 Valid, 4758 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-11-20 05:49:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10060 states. [2021-11-20 05:49:59,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10060 to 9153. [2021-11-20 05:49:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9153 states, 6096 states have (on average 1.2582020997375327) internal successors, (7670), 6170 states have internal predecessors, (7670), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-11-20 05:49:59,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9153 states to 9153 states and 12827 transitions. [2021-11-20 05:49:59,330 INFO L78 Accepts]: Start accepts. Automaton has 9153 states and 12827 transitions. Word has length 982 [2021-11-20 05:49:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:59,331 INFO L470 AbstractCegarLoop]: Abstraction has 9153 states and 12827 transitions. [2021-11-20 05:49:59,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 21.0) internal successors, (315), 12 states have internal predecessors, (315), 10 states have call successors, (125), 5 states have call predecessors, (125), 2 states have return successors, (110), 10 states have call predecessors, (110), 10 states have call successors, (110) [2021-11-20 05:49:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9153 states and 12827 transitions. [2021-11-20 05:49:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2423 [2021-11-20 05:49:59,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:59,396 INFO L514 BasicCegarLoop]: trace histogram [180, 180, 165, 165, 48, 48, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:49:59,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:49:59,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:49:59,613 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:49:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1915708820, now seen corresponding path program 3 times [2021-11-20 05:49:59,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:59,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742999465] [2021-11-20 05:49:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:59,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:50:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 05:50:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 05:50:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 05:50:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 05:50:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 05:50:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 05:50:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 05:50:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 05:50:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 05:50:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:50:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 05:50:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 05:50:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 05:50:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 05:50:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 05:50:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 05:50:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:50:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 05:50:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 05:50:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 05:50:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 05:50:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-20 05:50:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 05:50:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:50:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:50:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:50:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:50:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:50:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:50:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:50:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:50:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:50:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:50:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:50:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:50:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:50:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:50:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:50:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:50:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:50:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 05:50:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 05:50:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:50:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:50:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:50:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:50:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:50:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 05:50:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:50:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:50:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 05:50:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 05:50:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 05:50:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:50:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:50:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 05:50:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 05:50:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:50:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-20 05:50:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:50:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:50:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 05:50:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:50:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 05:50:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 05:50:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 05:50:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-20 05:50:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:50:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 05:50:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:50:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 05:50:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:50:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:50:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:50:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-20 05:50:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:50:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-20 05:50:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-20 05:50:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:50:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:50:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 05:50:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:50:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-20 05:50:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-20 05:50:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 05:50:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-20 05:50:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-20 05:50:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-20 05:50:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-20 05:50:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-20 05:50:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:50:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-20 05:50:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-20 05:50:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-20 05:50:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-20 05:50:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:50:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-20 05:50:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 625 [2021-11-20 05:50:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:50:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:50:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:50:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:50:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:50:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:50:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:50:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:50:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:50:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:50:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:50:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:50:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:50:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:50:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:50:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:50:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:50:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 05:50:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 05:50:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:50:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:50:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:50:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:50:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:50:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 05:50:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:50:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:50:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 05:50:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 05:50:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 05:50:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:50:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:50:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 05:50:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 05:50:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:50:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-20 05:50:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:50:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:50:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 05:50:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:50:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 05:50:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 05:50:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 05:50:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:02,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-20 05:50:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:50:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 05:50:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:50:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 05:50:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:50:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:50:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:50:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-20 05:50:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:50:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-20 05:50:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-20 05:50:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:50:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:50:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 05:50:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:50:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-20 05:50:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-20 05:50:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 05:50:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-20 05:50:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-20 05:50:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-20 05:50:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-20 05:50:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-20 05:50:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:50:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-20 05:50:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-20 05:50:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-20 05:50:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-20 05:50:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:50:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-20 05:50:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1051 [2021-11-20 05:50:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:50:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:50:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:50:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:50:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:50:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:50:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:50:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:50:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:50:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:50:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:50:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:50:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:50:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:50:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:50:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:50:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:50:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 05:50:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 05:50:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:50:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:50:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:50:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:50:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:50:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 05:50:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:50:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:50:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 05:50:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 05:50:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 05:50:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:50:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:50:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 05:50:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 05:50:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:50:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-20 05:50:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:50:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:50:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 05:50:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:50:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 05:50:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 05:50:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 05:50:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-20 05:50:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:50:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 05:50:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:50:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 05:50:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:50:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:50:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:50:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-20 05:50:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:50:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-20 05:50:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-20 05:50:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:50:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:50:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 05:50:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:50:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-20 05:50:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-20 05:50:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 05:50:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-20 05:50:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-20 05:50:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-20 05:50:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-20 05:50:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-20 05:50:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:50:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-20 05:50:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-20 05:50:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-20 05:50:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-20 05:50:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:50:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-20 05:50:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1477 [2021-11-20 05:50:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:50:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:50:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:50:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:50:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:50:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:50:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:50:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:50:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:50:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:50:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:50:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:50:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:50:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:50:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:50:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:50:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:50:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 05:50:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 05:50:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:50:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:50:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:50:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:50:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:50:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 05:50:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:50:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:50:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 05:50:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 05:50:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 05:50:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:50:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:50:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 05:50:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 05:50:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:50:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-20 05:50:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:50:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:50:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 05:50:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:50:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 05:50:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 05:50:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 05:50:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-20 05:50:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:50:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 05:50:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:50:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 05:50:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:50:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:50:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:50:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-20 05:50:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:50:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-20 05:50:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-20 05:50:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:50:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:50:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 05:50:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:50:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-20 05:50:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-20 05:50:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 05:50:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-20 05:50:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-20 05:50:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-20 05:50:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-20 05:50:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-20 05:50:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:50:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-20 05:50:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-20 05:50:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-20 05:50:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-20 05:50:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:50:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-20 05:50:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1903 [2021-11-20 05:50:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 05:50:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 05:50:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 05:50:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 05:50:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 05:50:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 05:50:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 05:50:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 05:50:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 05:50:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 05:50:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 05:50:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 05:50:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 05:50:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 05:50:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 05:50:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 05:50:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 05:50:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 05:50:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 05:50:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-20 05:50:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-20 05:50:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 05:50:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-20 05:50:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 05:50:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 05:50:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 05:50:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 05:50:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 05:50:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 05:50:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 05:50:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 05:50:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 05:50:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 05:50:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 05:50:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 05:50:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 05:50:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 05:50:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-20 05:50:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 05:50:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-20 05:50:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 05:50:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-20 05:50:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-20 05:50:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 05:50:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-20 05:50:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-20 05:50:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 05:50:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 05:50:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-20 05:50:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-20 05:50:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 05:50:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 05:50:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 05:50:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-20 05:50:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-20 05:50:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-20 05:50:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-20 05:50:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-20 05:50:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-20 05:50:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-20 05:50:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-20 05:50:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-20 05:50:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-20 05:50:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 05:50:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-20 05:50:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-20 05:50:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-20 05:50:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-20 05:50:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-20 05:50:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-20 05:50:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-11-20 05:50:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-20 05:50:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-11-20 05:50:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-11-20 05:50:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 05:50:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-20 05:50:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2333 [2021-11-20 05:50:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2340 [2021-11-20 05:50:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2347 [2021-11-20 05:50:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2352 [2021-11-20 05:50:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2357 [2021-11-20 05:50:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 05:50:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 05:50:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2411 [2021-11-20 05:50:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 110170 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 110156 trivial. 0 not checked. [2021-11-20 05:50:04,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:04,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742999465] [2021-11-20 05:50:04,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742999465] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:50:04,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132300290] [2021-11-20 05:50:04,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:50:04,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:04,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:04,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:50:05,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 05:50:05,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:50:05,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:50:05,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 110170 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 110161 trivial. 0 not checked. [2021-11-20 05:50:09,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:09,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132300290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:09,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:50:09,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-11-20 05:50:09,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349857117] [2021-11-20 05:50:09,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:09,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:50:09,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:09,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:50:09,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:50:09,786 INFO L87 Difference]: Start difference. First operand 9153 states and 12827 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-20 05:50:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:11,257 INFO L93 Difference]: Finished difference Result 19316 states and 27204 transitions. [2021-11-20 05:50:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:50:11,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 2422 [2021-11-20 05:50:11,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:11,304 INFO L225 Difference]: With dead ends: 19316 [2021-11-20 05:50:11,304 INFO L226 Difference]: Without dead ends: 10187 [2021-11-20 05:50:11,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3272 GetRequests, 3263 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 05:50:11,437 INFO L933 BasicCegarLoop]: 2713 mSDtfsCounter, 452 mSDsluCounter, 5088 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:11,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 7801 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:50:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2021-11-20 05:50:12,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 9153. [2021-11-20 05:50:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9153 states, 6096 states have (on average 1.2582020997375327) internal successors, (7670), 6170 states have internal predecessors, (7670), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-11-20 05:50:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9153 states to 9153 states and 12827 transitions. [2021-11-20 05:50:12,256 INFO L78 Accepts]: Start accepts. Automaton has 9153 states and 12827 transitions. Word has length 2422 [2021-11-20 05:50:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:12,260 INFO L470 AbstractCegarLoop]: Abstraction has 9153 states and 12827 transitions. [2021-11-20 05:50:12,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-20 05:50:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9153 states and 12827 transitions. [2021-11-20 05:50:12,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3632 [2021-11-20 05:50:12,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:12,395 INFO L514 BasicCegarLoop]: trace histogram [291, 291, 165, 165, 106, 106, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:12,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:50:12,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:12,609 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:12,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:12,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1129274337, now seen corresponding path program 1 times [2021-11-20 05:50:12,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:12,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686689325] [2021-11-20 05:50:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:12,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:12,916 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:12,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668701293] [2021-11-20 05:50:12,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:12,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:12,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:12,918 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:12,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:50:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:15,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 14887 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:50:15,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 206116 backedges. 46272 proven. 0 refuted. 0 times theorem prover too weak. 159844 trivial. 0 not checked. [2021-11-20 05:50:21,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:21,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:21,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686689325] [2021-11-20 05:50:21,295 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:21,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668701293] [2021-11-20 05:50:21,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668701293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:21,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:21,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:21,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011380277] [2021-11-20 05:50:21,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:21,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:21,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:21,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:21,302 INFO L87 Difference]: Start difference. First operand 9153 states and 12827 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-20 05:50:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:21,794 INFO L93 Difference]: Finished difference Result 18322 states and 25689 transitions. [2021-11-20 05:50:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:21,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) Word has length 3631 [2021-11-20 05:50:21,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:21,842 INFO L225 Difference]: With dead ends: 18322 [2021-11-20 05:50:21,842 INFO L226 Difference]: Without dead ends: 9193 [2021-11-20 05:50:21,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3630 GetRequests, 3629 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:21,878 INFO L933 BasicCegarLoop]: 2416 mSDtfsCounter, 4 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4823 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:21,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4823 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:21,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9193 states. [2021-11-20 05:50:22,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9193 to 9165. [2021-11-20 05:50:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9165 states, 6108 states have (on average 1.2576948264571055) internal successors, (7682), 6182 states have internal predecessors, (7682), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-11-20 05:50:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9165 states to 9165 states and 12839 transitions. [2021-11-20 05:50:22,614 INFO L78 Accepts]: Start accepts. Automaton has 9165 states and 12839 transitions. Word has length 3631 [2021-11-20 05:50:22,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:22,618 INFO L470 AbstractCegarLoop]: Abstraction has 9165 states and 12839 transitions. [2021-11-20 05:50:22,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-20 05:50:22,619 INFO L276 IsEmpty]: Start isEmpty. Operand 9165 states and 12839 transitions. [2021-11-20 05:50:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3717 [2021-11-20 05:50:22,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:22,719 INFO L514 BasicCegarLoop]: trace histogram [297, 297, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:22,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:50:22,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 05:50:22,933 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1457144477, now seen corresponding path program 1 times [2021-11-20 05:50:22,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:22,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875919680] [2021-11-20 05:50:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:22,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:23,208 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:23,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237737387] [2021-11-20 05:50:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:23,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:23,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:23,210 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:23,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:50:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:25,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 15215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:50:25,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 214408 backedges. 6410 proven. 0 refuted. 0 times theorem prover too weak. 207998 trivial. 0 not checked. [2021-11-20 05:50:31,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:31,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:31,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875919680] [2021-11-20 05:50:31,022 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:31,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237737387] [2021-11-20 05:50:31,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237737387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:31,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:31,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:50:31,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257955869] [2021-11-20 05:50:31,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:31,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:31,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:31,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:31,029 INFO L87 Difference]: Start difference. First operand 9165 states and 12839 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 2 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2021-11-20 05:50:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:31,486 INFO L93 Difference]: Finished difference Result 18442 states and 25853 transitions. [2021-11-20 05:50:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:31,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 2 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) Word has length 3716 [2021-11-20 05:50:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:31,532 INFO L225 Difference]: With dead ends: 18442 [2021-11-20 05:50:31,532 INFO L226 Difference]: Without dead ends: 9301 [2021-11-20 05:50:31,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3715 GetRequests, 3714 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:31,566 INFO L933 BasicCegarLoop]: 2433 mSDtfsCounter, 17 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:31,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 4847 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2021-11-20 05:50:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 9169. [2021-11-20 05:50:32,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9169 states, 6112 states have (on average 1.2575261780104712) internal successors, (7686), 6186 states have internal predecessors, (7686), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-11-20 05:50:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9169 states to 9169 states and 12843 transitions. [2021-11-20 05:50:32,160 INFO L78 Accepts]: Start accepts. Automaton has 9169 states and 12843 transitions. Word has length 3716 [2021-11-20 05:50:32,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:32,163 INFO L470 AbstractCegarLoop]: Abstraction has 9169 states and 12843 transitions. [2021-11-20 05:50:32,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 2 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2021-11-20 05:50:32,163 INFO L276 IsEmpty]: Start isEmpty. Operand 9169 states and 12843 transitions. [2021-11-20 05:50:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3799 [2021-11-20 05:50:32,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:32,379 INFO L514 BasicCegarLoop]: trace histogram [313, 313, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:32,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-20 05:50:32,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-20 05:50:32,585 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:32,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash 213848489, now seen corresponding path program 1 times [2021-11-20 05:50:32,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:32,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64628714] [2021-11-20 05:50:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:32,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:32,834 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:32,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876760265] [2021-11-20 05:50:32,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:32,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:32,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:32,836 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:32,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:50:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:35,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 15538 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:50:35,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 80981 proven. 0 refuted. 0 times theorem prover too weak. 148044 trivial. 0 not checked. [2021-11-20 05:50:44,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:44,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:44,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64628714] [2021-11-20 05:50:44,830 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:44,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876760265] [2021-11-20 05:50:44,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876760265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:44,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:44,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:50:44,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548951902] [2021-11-20 05:50:44,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:44,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:44,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:44,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:44,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:44,835 INFO L87 Difference]: Start difference. First operand 9169 states and 12843 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-11-20 05:50:45,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:45,494 INFO L93 Difference]: Finished difference Result 18314 states and 25657 transitions. [2021-11-20 05:50:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:45,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 3798 [2021-11-20 05:50:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:45,532 INFO L225 Difference]: With dead ends: 18314 [2021-11-20 05:50:45,532 INFO L226 Difference]: Without dead ends: 9169 [2021-11-20 05:50:45,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3797 GetRequests, 3796 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:45,562 INFO L933 BasicCegarLoop]: 2415 mSDtfsCounter, 2132 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:45,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2132 Valid, 2415 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:45,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2021-11-20 05:50:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 9169. [2021-11-20 05:50:46,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9169 states, 6112 states have (on average 1.256217277486911) internal successors, (7678), 6186 states have internal predecessors, (7678), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-11-20 05:50:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9169 states to 9169 states and 12835 transitions. [2021-11-20 05:50:46,134 INFO L78 Accepts]: Start accepts. Automaton has 9169 states and 12835 transitions. Word has length 3798 [2021-11-20 05:50:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:50:46,136 INFO L470 AbstractCegarLoop]: Abstraction has 9169 states and 12835 transitions. [2021-11-20 05:50:46,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-11-20 05:50:46,137 INFO L276 IsEmpty]: Start isEmpty. Operand 9169 states and 12835 transitions. [2021-11-20 05:50:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3799 [2021-11-20 05:50:46,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:50:46,233 INFO L514 BasicCegarLoop]: trace histogram [313, 313, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:50:46,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-20 05:50:46,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:46,435 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:50:46,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:50:46,437 INFO L85 PathProgramCache]: Analyzing trace with hash -610531481, now seen corresponding path program 1 times [2021-11-20 05:50:46,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:50:46,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122474103] [2021-11-20 05:50:46,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:46,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:50:46,659 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:50:46,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497482807] [2021-11-20 05:50:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:50:46,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:50:46,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:50:46,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:50:46,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:50:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:50:49,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 15534 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:50:49,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:50:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 80981 proven. 0 refuted. 0 times theorem prover too weak. 148044 trivial. 0 not checked. [2021-11-20 05:50:58,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:50:58,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:50:58,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122474103] [2021-11-20 05:50:58,722 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:50:58,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497482807] [2021-11-20 05:50:58,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497482807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:50:58,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:50:58,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:50:58,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228405331] [2021-11-20 05:50:58,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:50:58,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:50:58,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:50:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:50:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:58,729 INFO L87 Difference]: Start difference. First operand 9169 states and 12835 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-11-20 05:50:59,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:50:59,186 INFO L93 Difference]: Finished difference Result 18314 states and 25641 transitions. [2021-11-20 05:50:59,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:50:59,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 3798 [2021-11-20 05:50:59,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:50:59,217 INFO L225 Difference]: With dead ends: 18314 [2021-11-20 05:50:59,218 INFO L226 Difference]: Without dead ends: 9169 [2021-11-20 05:50:59,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3797 GetRequests, 3796 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:50:59,245 INFO L933 BasicCegarLoop]: 2414 mSDtfsCounter, 2130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:50:59,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2130 Valid, 2414 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:50:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2021-11-20 05:50:59,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 9169. [2021-11-20 05:51:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9169 states, 6112 states have (on average 1.255562827225131) internal successors, (7674), 6186 states have internal predecessors, (7674), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-11-20 05:51:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9169 states to 9169 states and 12831 transitions. [2021-11-20 05:51:00,038 INFO L78 Accepts]: Start accepts. Automaton has 9169 states and 12831 transitions. Word has length 3798 [2021-11-20 05:51:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:00,041 INFO L470 AbstractCegarLoop]: Abstraction has 9169 states and 12831 transitions. [2021-11-20 05:51:00,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-11-20 05:51:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 9169 states and 12831 transitions. [2021-11-20 05:51:00,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3799 [2021-11-20 05:51:00,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:00,146 INFO L514 BasicCegarLoop]: trace histogram [313, 313, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:00,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:51:00,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:00,347 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:51:00,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:00,348 INFO L85 PathProgramCache]: Analyzing trace with hash -360029719, now seen corresponding path program 1 times [2021-11-20 05:51:00,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:00,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517442501] [2021-11-20 05:51:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:00,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:00,576 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:51:00,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543862278] [2021-11-20 05:51:00,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:00,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:00,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:51:00,578 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:51:00,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 05:51:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:03,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 15530 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:51:03,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:51:08,717 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 85963 proven. 5 refuted. 0 times theorem prover too weak. 143057 trivial. 0 not checked. [2021-11-20 05:51:08,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:51:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 229007 trivial. 0 not checked. [2021-11-20 05:51:15,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:15,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517442501] [2021-11-20 05:51:15,848 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:51:15,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543862278] [2021-11-20 05:51:15,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543862278] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:51:15,848 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:51:15,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-20 05:51:15,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020424427] [2021-11-20 05:51:15,851 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:51:15,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:51:15,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:51:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:51:15,857 INFO L87 Difference]: Start difference. First operand 9169 states and 12831 transitions. Second operand has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 6 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (324), 6 states have call predecessors, (324), 6 states have call successors, (324) [2021-11-20 05:51:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:18,504 INFO L93 Difference]: Finished difference Result 20618 states and 29148 transitions. [2021-11-20 05:51:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:51:18,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 6 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (324), 6 states have call predecessors, (324), 6 states have call successors, (324) Word has length 3798 [2021-11-20 05:51:18,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:18,536 INFO L225 Difference]: With dead ends: 20618 [2021-11-20 05:51:18,536 INFO L226 Difference]: Without dead ends: 11473 [2021-11-20 05:51:18,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7594 GetRequests, 7588 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:51:18,570 INFO L933 BasicCegarLoop]: 2634 mSDtfsCounter, 1264 mSDsluCounter, 7497 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 10131 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:18,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1414 Valid, 10131 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 05:51:18,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11473 states. [2021-11-20 05:51:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11473 to 9333. [2021-11-20 05:51:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9333 states, 6224 states have (on average 1.2509640102827764) internal successors, (7786), 6298 states have internal predecessors, (7786), 2623 states have call successors, (2623), 485 states have call predecessors, (2623), 485 states have return successors, (2638), 2597 states have call predecessors, (2638), 2622 states have call successors, (2638) [2021-11-20 05:51:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9333 states to 9333 states and 13047 transitions. [2021-11-20 05:51:19,207 INFO L78 Accepts]: Start accepts. Automaton has 9333 states and 13047 transitions. Word has length 3798 [2021-11-20 05:51:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:19,209 INFO L470 AbstractCegarLoop]: Abstraction has 9333 states and 13047 transitions. [2021-11-20 05:51:19,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 6 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (324), 6 states have call predecessors, (324), 6 states have call successors, (324) [2021-11-20 05:51:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9333 states and 13047 transitions. [2021-11-20 05:51:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6155 [2021-11-20 05:51:19,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:19,585 INFO L514 BasicCegarLoop]: trace histogram [504, 504, 330, 330, 173, 173, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:19,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 05:51:19,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-20 05:51:19,801 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:51:19,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1928530381, now seen corresponding path program 2 times [2021-11-20 05:51:19,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:19,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717708779] [2021-11-20 05:51:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:19,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:20,140 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:51:20,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137503591] [2021-11-20 05:51:20,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:51:20,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:20,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:51:20,142 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:51:20,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 05:51:23,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:51:23,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:51:23,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 23420 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:51:23,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:51:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 668710 backedges. 318769 proven. 51 refuted. 0 times theorem prover too weak. 349890 trivial. 0 not checked. [2021-11-20 05:51:32,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:51:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 668710 backedges. 13 proven. 51 refuted. 0 times theorem prover too weak. 668646 trivial. 0 not checked. [2021-11-20 05:51:44,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:44,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717708779] [2021-11-20 05:51:44,507 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:51:44,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137503591] [2021-11-20 05:51:44,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137503591] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:51:44,507 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:51:44,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-20 05:51:44,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290380313] [2021-11-20 05:51:44,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:51:44,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-20 05:51:44,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:44,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-20 05:51:44,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:51:44,516 INFO L87 Difference]: Start difference. First operand 9333 states and 13047 transitions. Second operand has 16 states, 16 states have (on average 32.8125) internal successors, (525), 16 states have internal predecessors, (525), 14 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (332), 14 states have call predecessors, (332), 14 states have call successors, (332) [2021-11-20 05:51:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:51:47,571 INFO L93 Difference]: Finished difference Result 21387 states and 30297 transitions. [2021-11-20 05:51:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 05:51:47,572 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 32.8125) internal successors, (525), 16 states have internal predecessors, (525), 14 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (332), 14 states have call predecessors, (332), 14 states have call successors, (332) Word has length 6154 [2021-11-20 05:51:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:51:47,612 INFO L225 Difference]: With dead ends: 21387 [2021-11-20 05:51:47,612 INFO L226 Difference]: Without dead ends: 12078 [2021-11-20 05:51:47,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12306 GetRequests, 12292 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:51:47,636 INFO L933 BasicCegarLoop]: 2755 mSDtfsCounter, 1397 mSDsluCounter, 8348 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 11103 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:51:47,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 11103 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 05:51:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12078 states. [2021-11-20 05:51:48,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12078 to 9689. [2021-11-20 05:51:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9689 states, 6472 states have (on average 1.2413473423980224) internal successors, (8034), 6546 states have internal predecessors, (8034), 2731 states have call successors, (2731), 485 states have call predecessors, (2731), 485 states have return successors, (2746), 2705 states have call predecessors, (2746), 2730 states have call successors, (2746) [2021-11-20 05:51:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9689 states to 9689 states and 13511 transitions. [2021-11-20 05:51:48,346 INFO L78 Accepts]: Start accepts. Automaton has 9689 states and 13511 transitions. Word has length 6154 [2021-11-20 05:51:48,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:51:48,349 INFO L470 AbstractCegarLoop]: Abstraction has 9689 states and 13511 transitions. [2021-11-20 05:51:48,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 32.8125) internal successors, (525), 16 states have internal predecessors, (525), 14 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (332), 14 states have call predecessors, (332), 14 states have call successors, (332) [2021-11-20 05:51:48,350 INFO L276 IsEmpty]: Start isEmpty. Operand 9689 states and 13511 transitions. [2021-11-20 05:51:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11297 [2021-11-20 05:51:49,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:51:49,271 INFO L514 BasicCegarLoop]: trace histogram [921, 921, 693, 693, 304, 304, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:49,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-20 05:51:49,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:49,472 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:51:49,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash 749821309, now seen corresponding path program 3 times [2021-11-20 05:51:49,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:49,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845044209] [2021-11-20 05:51:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:49,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:50,119 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:51:50,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569938100] [2021-11-20 05:51:50,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:51:50,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:51:50,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:51:50,122 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:51:50,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 05:51:51,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 05:51:51,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:51:51,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:51:51,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:52:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2466670 backedges. 61922 proven. 0 refuted. 0 times theorem prover too weak. 2404748 trivial. 0 not checked. [2021-11-20 05:52:07,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:52:07,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:07,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845044209] [2021-11-20 05:52:07,368 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:52:07,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569938100] [2021-11-20 05:52:07,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569938100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:07,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:07,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:52:07,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936401207] [2021-11-20 05:52:07,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:07,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:52:07,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:52:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:52:07,377 INFO L87 Difference]: Start difference. First operand 9689 states and 13511 transitions. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2021-11-20 05:52:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:08,221 INFO L93 Difference]: Finished difference Result 23316 states and 32995 transitions. [2021-11-20 05:52:08,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:52:08,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) Word has length 11296 [2021-11-20 05:52:08,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:08,282 INFO L225 Difference]: With dead ends: 23316 [2021-11-20 05:52:08,283 INFO L226 Difference]: Without dead ends: 13651 [2021-11-20 05:52:08,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11297 GetRequests, 11294 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:52:08,384 INFO L933 BasicCegarLoop]: 3401 mSDtfsCounter, 908 mSDsluCounter, 5988 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9389 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:08,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9389 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:52:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2021-11-20 05:52:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 9697. [2021-11-20 05:52:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9697 states, 6480 states have (on average 1.2410493827160494) internal successors, (8042), 6554 states have internal predecessors, (8042), 2731 states have call successors, (2731), 485 states have call predecessors, (2731), 485 states have return successors, (2746), 2705 states have call predecessors, (2746), 2730 states have call successors, (2746) [2021-11-20 05:52:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9697 states to 9697 states and 13519 transitions. [2021-11-20 05:52:09,135 INFO L78 Accepts]: Start accepts. Automaton has 9697 states and 13519 transitions. Word has length 11296 [2021-11-20 05:52:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:09,142 INFO L470 AbstractCegarLoop]: Abstraction has 9697 states and 13519 transitions. [2021-11-20 05:52:09,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2021-11-20 05:52:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 9697 states and 13519 transitions. [2021-11-20 05:52:10,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11503 [2021-11-20 05:52:10,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:10,071 INFO L514 BasicCegarLoop]: trace histogram [933, 933, 693, 693, 304, 304, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:10,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 05:52:10,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:10,273 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:52:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:10,275 INFO L85 PathProgramCache]: Analyzing trace with hash 872649612, now seen corresponding path program 1 times [2021-11-20 05:52:10,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:10,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285865873] [2021-11-20 05:52:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:10,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:10,983 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:52:10,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726535665] [2021-11-20 05:52:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:10,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:10,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:10,989 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:10,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 05:52:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:17,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 41728 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:52:18,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:52:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2500436 backedges. 94516 proven. 0 refuted. 0 times theorem prover too weak. 2405920 trivial. 0 not checked. [2021-11-20 05:52:33,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:52:33,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:52:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285865873] [2021-11-20 05:52:33,572 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:52:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726535665] [2021-11-20 05:52:33,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726535665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:52:33,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:52:33,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:52:33,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110852936] [2021-11-20 05:52:33,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:52:33,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:52:33,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:52:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:52:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:52:33,582 INFO L87 Difference]: Start difference. First operand 9697 states and 13519 transitions. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-11-20 05:52:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:52:34,450 INFO L93 Difference]: Finished difference Result 22651 states and 31962 transitions. [2021-11-20 05:52:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:52:34,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) Word has length 11502 [2021-11-20 05:52:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:52:34,493 INFO L225 Difference]: With dead ends: 22651 [2021-11-20 05:52:34,493 INFO L226 Difference]: Without dead ends: 12978 [2021-11-20 05:52:34,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11501 GetRequests, 11500 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:52:34,524 INFO L933 BasicCegarLoop]: 3391 mSDtfsCounter, 559 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 6014 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:52:34,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 6014 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:52:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12978 states. [2021-11-20 05:52:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12978 to 9701. [2021-11-20 05:52:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9701 states, 6484 states have (on average 1.2409006785934609) internal successors, (8046), 6558 states have internal predecessors, (8046), 2731 states have call successors, (2731), 485 states have call predecessors, (2731), 485 states have return successors, (2746), 2705 states have call predecessors, (2746), 2730 states have call successors, (2746) [2021-11-20 05:52:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9701 states to 9701 states and 13523 transitions. [2021-11-20 05:52:35,454 INFO L78 Accepts]: Start accepts. Automaton has 9701 states and 13523 transitions. Word has length 11502 [2021-11-20 05:52:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:52:35,462 INFO L470 AbstractCegarLoop]: Abstraction has 9701 states and 13523 transitions. [2021-11-20 05:52:35,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-11-20 05:52:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9701 states and 13523 transitions. [2021-11-20 05:52:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11538 [2021-11-20 05:52:36,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:52:36,567 INFO L514 BasicCegarLoop]: trace histogram [933, 933, 693, 693, 304, 304, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:52:36,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-20 05:52:36,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-20 05:52:36,781 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:52:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:52:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1037655428, now seen corresponding path program 1 times [2021-11-20 05:52:36,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:52:36,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718413734] [2021-11-20 05:52:36,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:36,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:52:37,441 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:52:37,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002481444] [2021-11-20 05:52:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:52:37,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:52:37,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:52:37,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:52:37,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-20 05:52:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:52:44,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 41916 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 05:52:44,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:53:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2500483 backedges. 1181435 proven. 287 refuted. 0 times theorem prover too weak. 1318761 trivial. 0 not checked. [2021-11-20 05:53:00,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:53:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2500483 backedges. 17 proven. 287 refuted. 0 times theorem prover too weak. 2500179 trivial. 0 not checked. [2021-11-20 05:53:22,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:53:22,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718413734] [2021-11-20 05:53:22,578 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:53:22,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002481444] [2021-11-20 05:53:22,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002481444] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:53:22,578 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:53:22,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-11-20 05:53:22,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568276845] [2021-11-20 05:53:22,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:53:22,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-20 05:53:22,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:53:22,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-20 05:53:22,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-20 05:53:22,589 INFO L87 Difference]: Start difference. First operand 9701 states and 13523 transitions. Second operand has 32 states, 32 states have (on average 19.21875) internal successors, (615), 32 states have internal predecessors, (615), 30 states have call successors, (408), 2 states have call predecessors, (408), 2 states have return successors, (404), 30 states have call predecessors, (404), 30 states have call successors, (404) [2021-11-20 05:53:26,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:53:26,392 INFO L93 Difference]: Finished difference Result 21612 states and 30503 transitions. [2021-11-20 05:53:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-20 05:53:26,394 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 19.21875) internal successors, (615), 32 states have internal predecessors, (615), 30 states have call successors, (408), 2 states have call predecessors, (408), 2 states have return successors, (404), 30 states have call predecessors, (404), 30 states have call successors, (404) Word has length 11537 [2021-11-20 05:53:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:53:26,436 INFO L225 Difference]: With dead ends: 21612 [2021-11-20 05:53:26,436 INFO L226 Difference]: Without dead ends: 11935 [2021-11-20 05:53:26,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23072 GetRequests, 23042 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-20 05:53:26,470 INFO L933 BasicCegarLoop]: 2772 mSDtfsCounter, 1917 mSDsluCounter, 8816 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 11588 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:53:26,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2081 Valid, 11588 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 05:53:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11935 states. [2021-11-20 05:53:27,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11935 to 10349. [2021-11-20 05:53:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6940 states have (on average 1.2250720461095101) internal successors, (8502), 7014 states have internal predecessors, (8502), 2923 states have call successors, (2923), 485 states have call predecessors, (2923), 485 states have return successors, (2938), 2897 states have call predecessors, (2938), 2922 states have call successors, (2938) [2021-11-20 05:53:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 14363 transitions. [2021-11-20 05:53:27,415 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 14363 transitions. Word has length 11537 [2021-11-20 05:53:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:53:27,419 INFO L470 AbstractCegarLoop]: Abstraction has 10349 states and 14363 transitions. [2021-11-20 05:53:27,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 19.21875) internal successors, (615), 32 states have internal predecessors, (615), 30 states have call successors, (408), 2 states have call predecessors, (408), 2 states have return successors, (404), 30 states have call predecessors, (404), 30 states have call successors, (404) [2021-11-20 05:53:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 14363 transitions. [2021-11-20 05:53:30,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19268 [2021-11-20 05:53:30,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:53:30,013 INFO L514 BasicCegarLoop]: trace histogram [1557, 1557, 1221, 1221, 512, 512, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:53:30,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-20 05:53:30,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-20 05:53:30,214 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:53:30,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:53:30,216 INFO L85 PathProgramCache]: Analyzing trace with hash 503134760, now seen corresponding path program 2 times [2021-11-20 05:53:30,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:53:30,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731247939] [2021-11-20 05:53:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:53:30,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:53:31,409 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:53:31,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404670540] [2021-11-20 05:53:31,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:53:31,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:53:31,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:53:31,415 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:53:31,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-20 05:53:44,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:53:44,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:53:44,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 67908 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-20 05:53:45,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:54:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7305458 backedges. 928021 proven. 1335 refuted. 0 times theorem prover too weak. 6376102 trivial. 0 not checked. [2021-11-20 05:54:11,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:54:48,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7305458 backedges. 17 proven. 1335 refuted. 0 times theorem prover too weak. 7304106 trivial. 0 not checked. [2021-11-20 05:54:48,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:54:48,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731247939] [2021-11-20 05:54:48,560 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:54:48,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404670540] [2021-11-20 05:54:48,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404670540] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:54:48,561 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:54:48,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2021-11-20 05:54:48,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392863832] [2021-11-20 05:54:48,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:54:48,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-20 05:54:48,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:54:48,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-20 05:54:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-20 05:54:48,583 INFO L87 Difference]: Start difference. First operand 10349 states and 14363 transitions. Second operand has 64 states, 64 states have (on average 10.171875) internal successors, (651), 64 states have internal predecessors, (651), 62 states have call successors, (407), 2 states have call predecessors, (407), 2 states have return successors, (403), 62 states have call predecessors, (403), 62 states have call successors, (403) [2021-11-20 05:54:56,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:54:56,197 INFO L93 Difference]: Finished difference Result 25950 states and 36845 transitions. [2021-11-20 05:54:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-20 05:54:56,199 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 10.171875) internal successors, (651), 64 states have internal predecessors, (651), 62 states have call successors, (407), 2 states have call predecessors, (407), 2 states have return successors, (403), 62 states have call predecessors, (403), 62 states have call successors, (403) Word has length 19267 [2021-11-20 05:54:56,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:54:56,268 INFO L225 Difference]: With dead ends: 25950 [2021-11-20 05:54:56,268 INFO L226 Difference]: Without dead ends: 15625 [2021-11-20 05:54:56,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38532 GetRequests, 38470 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-20 05:54:56,319 INFO L933 BasicCegarLoop]: 3050 mSDtfsCounter, 5618 mSDsluCounter, 12852 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 1946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6221 SdHoareTripleChecker+Valid, 15902 SdHoareTripleChecker+Invalid, 4656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1946 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:54:56,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6221 Valid, 15902 Invalid, 4656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1946 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-20 05:54:56,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15625 states. [2021-11-20 05:54:57,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15625 to 10745. [2021-11-20 05:54:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10745 states, 7204 states have (on average 1.21682398667407) internal successors, (8766), 7278 states have internal predecessors, (8766), 3055 states have call successors, (3055), 485 states have call predecessors, (3055), 485 states have return successors, (3070), 3029 states have call predecessors, (3070), 3054 states have call successors, (3070) [2021-11-20 05:54:57,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10745 states to 10745 states and 14891 transitions. [2021-11-20 05:54:57,621 INFO L78 Accepts]: Start accepts. Automaton has 10745 states and 14891 transitions. Word has length 19267 [2021-11-20 05:54:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:54:57,633 INFO L470 AbstractCegarLoop]: Abstraction has 10745 states and 14891 transitions. [2021-11-20 05:54:57,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 10.171875) internal successors, (651), 64 states have internal predecessors, (651), 62 states have call successors, (407), 2 states have call predecessors, (407), 2 states have return successors, (403), 62 states have call predecessors, (403), 62 states have call successors, (403) [2021-11-20 05:54:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 10745 states and 14891 transitions. [2021-11-20 05:55:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20192 [2021-11-20 05:55:00,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:00,471 INFO L514 BasicCegarLoop]: trace histogram [1623, 1623, 1221, 1221, 578, 578, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 62, 62, 62, 62, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 31, 31, 31, 31, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:00,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-20 05:55:00,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-20 05:55:00,697 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:55:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:00,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1740789994, now seen corresponding path program 3 times [2021-11-20 05:55:00,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:55:00,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678406340] [2021-11-20 05:55:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:00,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:55:01,640 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:55:01,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036489455] [2021-11-20 05:55:01,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:55:01,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:55:01,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:55:01,642 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:55:01,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-20 05:55:04,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 05:55:04,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:55:04,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:55:04,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:57:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7775810 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7775793 trivial. 0 not checked. [2021-11-20 05:57:34,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:57:34,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:57:34,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678406340] [2021-11-20 05:57:34,457 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:57:34,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036489455] [2021-11-20 05:57:34,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036489455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:57:34,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:57:34,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:57:34,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300382251] [2021-11-20 05:57:34,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:57:34,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:57:34,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:57:34,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:57:34,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:57:34,468 INFO L87 Difference]: Start difference. First operand 10745 states and 14891 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 2 states have internal predecessors, (462), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-11-20 05:57:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:57:35,626 INFO L93 Difference]: Finished difference Result 25538 states and 35405 transitions. [2021-11-20 05:57:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:57:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 2 states have internal predecessors, (462), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) Word has length 20191 [2021-11-20 05:57:35,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:57:35,703 INFO L225 Difference]: With dead ends: 25538 [2021-11-20 05:57:35,703 INFO L226 Difference]: Without dead ends: 14817 [2021-11-20 05:57:35,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20190 GetRequests, 20189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:57:35,762 INFO L933 BasicCegarLoop]: 2794 mSDtfsCounter, 930 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:57:35,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 5189 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:57:35,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14817 states. [2021-11-20 05:57:37,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14817 to 14813. [2021-11-20 05:57:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14813 states, 9888 states have (on average 1.205906148867314) internal successors, (11924), 9978 states have internal predecessors, (11924), 4295 states have call successors, (4295), 628 states have call predecessors, (4295), 629 states have return successors, (4315), 4262 states have call predecessors, (4315), 4294 states have call successors, (4315) [2021-11-20 05:57:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14813 states to 14813 states and 20534 transitions. [2021-11-20 05:57:37,298 INFO L78 Accepts]: Start accepts. Automaton has 14813 states and 20534 transitions. Word has length 20191 [2021-11-20 05:57:37,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:57:37,309 INFO L470 AbstractCegarLoop]: Abstraction has 14813 states and 20534 transitions. [2021-11-20 05:57:37,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 2 states have internal predecessors, (462), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-11-20 05:57:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 14813 states and 20534 transitions. [2021-11-20 05:57:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20192 [2021-11-20 05:57:40,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:57:40,560 INFO L514 BasicCegarLoop]: trace histogram [1623, 1623, 1221, 1221, 578, 578, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 62, 62, 62, 62, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 31, 31, 31, 31, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:57:40,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-20 05:57:40,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-20 05:57:40,773 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:57:40,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:57:40,775 INFO L85 PathProgramCache]: Analyzing trace with hash -503193304, now seen corresponding path program 1 times [2021-11-20 05:57:40,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:57:40,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195783179] [2021-11-20 05:57:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:57:40,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:57:41,966 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:57:41,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339057870] [2021-11-20 05:57:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:57:41,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:57:41,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:57:41,968 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:57:41,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f6d2b9-d0c8-4eac-9f57-6ccc46c513a7/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-20 05:57:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:57:57,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 71470 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-20 05:57:57,371 INFO L286 TraceCheckSpWp]: Computing forward predicates...