./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/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 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:21:54,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:21:54,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:21:54,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:21:54,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:21:54,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:21:54,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:21:54,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:21:54,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:21:54,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:21:54,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:21:54,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:21:54,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:21:54,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:21:54,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:21:54,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:21:54,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:21:54,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:21:54,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:21:54,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:21:54,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:21:54,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:21:54,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:21:54,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:21:54,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:21:54,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:21:54,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:21:54,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:21:54,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:21:54,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:21:54,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:21:54,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:21:54,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:21:54,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:21:54,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:21:54,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:21:54,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:21:54,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:21:54,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:21:54,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:21:54,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:21:54,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:21:54,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:21:54,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:21:54,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:21:54,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:21:54,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:21:54,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:21:54,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:21:54,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:21:54,669 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:21:54,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:21:54,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:21:54,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:21:54,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:21:54,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:21:54,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:21:54,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:21:54,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:21:54,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:21:54,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:21:54,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:21:54,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:21:54,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:21:54,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:21:54,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:21:54,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:21:54,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:21:54,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:21:54,674 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:21:54,674 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:21:54,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:21:54,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:21:54,675 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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 [2021-11-20 07:21:54,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:21:54,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:21:54,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:21:54,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:21:54,948 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:21:54,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-11-20 07:21:55,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/data/144687e43/a70c9faf32834b1b826d644f2a8efbd1/FLAG27d660557 [2021-11-20 07:21:55,999 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:21:55,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-11-20 07:21:56,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/data/144687e43/a70c9faf32834b1b826d644f2a8efbd1/FLAG27d660557 [2021-11-20 07:21:56,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/data/144687e43/a70c9faf32834b1b826d644f2a8efbd1 [2021-11-20 07:21:56,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:21:56,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:21:56,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:21:56,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:21:56,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:21:56,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:21:56" (1/1) ... [2021-11-20 07:21:56,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725685c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:21:56, skipping insertion in model container [2021-11-20 07:21:56,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:21:56" (1/1) ... [2021-11-20 07:21:56,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:21:56,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:22:00,189 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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2021-11-20 07:22:00,197 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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2021-11-20 07:22:00,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:22:00,283 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:22:00,813 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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2021-11-20 07:22:00,814 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_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2021-11-20 07:22:00,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:22:01,069 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:22:01,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01 WrapperNode [2021-11-20 07:22:01,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:22:01,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:22:01,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:22:01,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:22:01,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,441 INFO L137 Inliner]: procedures = 490, calls = 2384, calls flagged for inlining = 232, calls inlined = 186, statements flattened = 4701 [2021-11-20 07:22:01,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:22:01,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:22:01,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:22:01,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:22:01,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:22:01,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:22:01,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:22:01,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:22:01,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (1/1) ... [2021-11-20 07:22:01,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:22:01,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:22:01,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:22:01,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9dd0d1-b46b-413f-9cc0-7d68a84e0a02/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:22:01,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 07:22:01,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 07:22:01,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:22:01,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:22:01,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-20 07:22:01,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-20 07:22:01,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-20 07:22:01,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-20 07:22:01,871 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_open [2021-11-20 07:22:01,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_open [2021-11-20 07:22:01,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 07:22:01,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 07:22:01,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:22:01,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:22:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 07:22:01,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 07:22:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-20 07:22:01,872 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-20 07:22:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-20 07:22:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-20 07:22:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 07:22:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 07:22:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 07:22:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 07:22:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_wptr [2021-11-20 07:22:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_wptr [2021-11-20 07:22:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 07:22:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 07:22:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 07:22:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 07:22:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 07:22:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 07:22:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 07:22:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 07:22:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:22:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:22:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-20 07:22:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-20 07:22:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 07:22:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 07:22:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:22:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 07:22:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 07:22:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 07:22:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 07:22:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-20 07:22:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-20 07:22:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:22:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 07:22:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 07:22:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 07:22:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 07:22:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:22:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 07:22:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 07:22:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_tx_db_ptr_next [2021-11-20 07:22:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_tx_db_ptr_next [2021-11-20 07:22:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:22:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 07:22:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 07:22:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:22:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:22:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 07:22:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 07:22:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_close [2021-11-20 07:22:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_close [2021-11-20 07:22:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 07:22:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 07:22:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 07:22:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 07:22:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2021-11-20 07:22:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2021-11-20 07:22:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-20 07:22:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-20 07:22:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-20 07:22:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-20 07:22:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 07:22:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 07:22:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:22:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 07:22:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 07:22:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_restore_mac [2021-11-20 07:22:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_restore_mac [2021-11-20 07:22:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:22:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rx_alloc_skbs [2021-11-20 07:22:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rx_alloc_skbs [2021-11-20 07:22:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 07:22:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 07:22:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 07:22:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 07:22:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:22:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:22:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 07:22:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 07:22:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 07:22:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:22:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:22:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 07:22:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 07:22:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 07:22:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 07:22:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 07:22:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 07:22:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 07:22:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 07:22:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 07:22:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 07:22:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_available [2021-11-20 07:22:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_available [2021-11-20 07:22:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-20 07:22:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-20 07:22:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 07:22:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 07:22:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 07:22:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 07:22:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_addr_elem [2021-11-20 07:22:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_addr_elem [2021-11-20 07:22:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-20 07:22:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-20 07:22:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:22:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:22:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:22:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:22:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:22:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:22:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_rptr [2021-11-20 07:22:01,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_rptr [2021-11-20 07:22:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 07:22:01,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 07:22:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 07:22:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 07:22:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_vlan_rx_vid [2021-11-20 07:22:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_vlan_rx_vid [2021-11-20 07:22:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 07:22:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 07:22:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_free [2021-11-20 07:22:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_free [2021-11-20 07:22:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_remove [2021-11-20 07:22:01,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_remove [2021-11-20 07:22:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 07:22:01,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 07:22:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 07:22:01,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 07:22:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-20 07:22:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-20 07:22:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 07:22:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 07:22:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:22:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-20 07:22:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-20 07:22:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 07:22:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 07:22:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:22:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:22:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 07:22:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 07:22:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 07:22:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 07:22:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_reset [2021-11-20 07:22:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_reset [2021-11-20 07:22:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 07:22:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 07:22:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 07:22:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 07:22:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_alloc_elem [2021-11-20 07:22:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_alloc_elem [2021-11-20 07:22:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_range_check [2021-11-20 07:22:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_range_check [2021-11-20 07:22:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-20 07:22:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-20 07:22:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-20 07:22:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-20 07:22:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 07:22:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 07:22:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_init [2021-11-20 07:22:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_init [2021-11-20 07:22:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 07:22:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 07:22:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_link_changed [2021-11-20 07:22:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_link_changed [2021-11-20 07:22:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:22:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:22:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:22:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 07:22:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 07:22:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_setmulti [2021-11-20 07:22:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_setmulti [2021-11-20 07:22:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure print_rxfd [2021-11-20 07:22:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure print_rxfd [2021-11-20 07:22:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 07:22:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 07:22:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 07:22:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-20 07:22:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 07:22:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 07:22:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:22:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 07:22:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 07:22:02,811 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:22:02,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:22:03,070 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:24:34,945 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 07:24:35,037 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:24:35,058 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:24:35,058 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:24:35,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:35 BoogieIcfgContainer [2021-11-20 07:24:35,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:24:35,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:24:35,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:24:35,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:24:35,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:21:56" (1/3) ... [2021-11-20 07:24:35,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753eec48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:24:35, skipping insertion in model container [2021-11-20 07:24:35,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:01" (2/3) ... [2021-11-20 07:24:35,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753eec48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:24:35, skipping insertion in model container [2021-11-20 07:24:35,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:24:35" (3/3) ... [2021-11-20 07:24:35,078 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-11-20 07:24:35,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:24:35,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 07:24:35,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:24:35,172 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:24:35,173 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 07:24:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 1121 states have (on average 1.2595896520963425) internal successors, (1412), 1144 states have internal predecessors, (1412), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-20 07:24:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 07:24:35,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:24:35,266 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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, 1, 1, 1, 1] [2021-11-20 07:24:35,266 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:24:35,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:35,270 INFO L85 PathProgramCache]: Analyzing trace with hash -338666283, now seen corresponding path program 1 times [2021-11-20 07:24:35,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:35,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425573690] [2021-11-20 07:24:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:35,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:24:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:24:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:24:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:24:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:24:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:24:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 07:24:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 07:24:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-20 07:24:36,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:24:36,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425573690] [2021-11-20 07:24:36,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425573690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:24:36,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:24:36,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:24:36,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232020240] [2021-11-20 07:24:36,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:24:36,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:24:36,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:24:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:24:36,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:24:36,637 INFO L87 Difference]: Start difference. First operand has 1632 states, 1121 states have (on average 1.2595896520963425) internal successors, (1412), 1144 states have internal predecessors, (1412), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 07:24:38,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:41,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:53,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:54,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:24:54,284 INFO L93 Difference]: Finished difference Result 4643 states and 6520 transitions. [2021-11-20 07:24:54,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:24:54,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 100 [2021-11-20 07:24:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:24:54,333 INFO L225 Difference]: With dead ends: 4643 [2021-11-20 07:24:54,333 INFO L226 Difference]: Without dead ends: 2961 [2021-11-20 07:24:54,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:24:54,357 INFO L933 BasicCegarLoop]: 2453 mSDtfsCounter, 2416 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 1243 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:24:54,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2750 Valid, 4717 Invalid, 2921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1243 Valid, 1675 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-11-20 07:24:54,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-11-20 07:24:54,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2796. [2021-11-20 07:24:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 1953 states have (on average 1.2329749103942653) internal successors, (2408), 1989 states have internal predecessors, (2408), 682 states have call successors, (682), 159 states have call predecessors, (682), 159 states have return successors, (682), 677 states have call predecessors, (682), 682 states have call successors, (682) [2021-11-20 07:24:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3772 transitions. [2021-11-20 07:24:54,619 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3772 transitions. Word has length 100 [2021-11-20 07:24:54,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:24:54,620 INFO L470 AbstractCegarLoop]: Abstraction has 2796 states and 3772 transitions. [2021-11-20 07:24:54,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 07:24:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3772 transitions. [2021-11-20 07:24:54,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-20 07:24:54,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:24:54,628 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:54,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:24:54,629 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:24:54,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:54,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1985647655, now seen corresponding path program 1 times [2021-11-20 07:24:54,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:24:54,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089521977] [2021-11-20 07:24:54,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:24:54,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:24:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:24:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:24:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:24:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:24:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:24:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:24:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:24:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 07:24:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 07:24:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-20 07:24:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-20 07:24:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:24:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:24:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-20 07:24:55,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:24:55,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089521977] [2021-11-20 07:24:55,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089521977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:24:55,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:24:55,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:24:55,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118944033] [2021-11-20 07:24:55,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:24:55,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:24:55,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:24:55,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:24:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:24:55,269 INFO L87 Difference]: Start difference. First operand 2796 states and 3772 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 07:24:57,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:59,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:05,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:09,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:14,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:25:15,281 INFO L93 Difference]: Finished difference Result 8029 states and 10866 transitions. [2021-11-20 07:25:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:25:15,282 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2021-11-20 07:25:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:25:15,336 INFO L225 Difference]: With dead ends: 8029 [2021-11-20 07:25:15,336 INFO L226 Difference]: Without dead ends: 5248 [2021-11-20 07:25:15,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:25:15,354 INFO L933 BasicCegarLoop]: 2231 mSDtfsCounter, 2821 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 1309 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3153 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:25:15,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3153 Valid, 4334 Invalid, 2748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1309 Valid, 1435 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time] [2021-11-20 07:25:15,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2021-11-20 07:25:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 4998. [2021-11-20 07:25:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 3489 states have (on average 1.231298366294067) internal successors, (4296), 3558 states have internal predecessors, (4296), 1205 states have call successors, (1205), 300 states have call predecessors, (1205), 302 states have return successors, (1223), 1189 states have call predecessors, (1223), 1205 states have call successors, (1223) [2021-11-20 07:25:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 6724 transitions. [2021-11-20 07:25:15,657 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 6724 transitions. Word has length 112 [2021-11-20 07:25:15,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:25:15,658 INFO L470 AbstractCegarLoop]: Abstraction has 4998 states and 6724 transitions. [2021-11-20 07:25:15,658 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, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 07:25:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 6724 transitions. [2021-11-20 07:25:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-20 07:25:15,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:25:15,665 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 07:25:15,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:25:15,666 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:25:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:25:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -699880246, now seen corresponding path program 1 times [2021-11-20 07:25:15,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:25:15,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722238983] [2021-11-20 07:25:15,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:25:15,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:25:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:25:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:25:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:25:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:25:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:25:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:25:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:25:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:25:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:25:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:25:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:25:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:25:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:25:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 07:25:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-20 07:25:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-20 07:25:16,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:25:16,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722238983] [2021-11-20 07:25:16,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722238983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:25:16,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:25:16,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:25:16,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281760500] [2021-11-20 07:25:16,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:25:16,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:25:16,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:25:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:25:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:25:16,510 INFO L87 Difference]: Start difference. First operand 4998 states and 6724 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-20 07:25:18,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:20,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:23,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:33,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:25:34,415 INFO L93 Difference]: Finished difference Result 12376 states and 16702 transitions. [2021-11-20 07:25:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:25:34,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2021-11-20 07:25:34,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:25:34,481 INFO L225 Difference]: With dead ends: 12376 [2021-11-20 07:25:34,481 INFO L226 Difference]: Without dead ends: 7393 [2021-11-20 07:25:34,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:25:34,512 INFO L933 BasicCegarLoop]: 3461 mSDtfsCounter, 1911 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 910 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 6039 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:25:34,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2225 Valid, 6039 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 1624 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-11-20 07:25:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7393 states. [2021-11-20 07:25:34,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7393 to 7047. [2021-11-20 07:25:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7047 states, 4925 states have (on average 1.2286294416243655) internal successors, (6051), 5020 states have internal predecessors, (6051), 1687 states have call successors, (1687), 431 states have call predecessors, (1687), 433 states have return successors, (1706), 1665 states have call predecessors, (1706), 1687 states have call successors, (1706) [2021-11-20 07:25:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 9444 transitions. [2021-11-20 07:25:34,950 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 9444 transitions. Word has length 163 [2021-11-20 07:25:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:25:34,953 INFO L470 AbstractCegarLoop]: Abstraction has 7047 states and 9444 transitions. [2021-11-20 07:25:34,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-20 07:25:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 9444 transitions. [2021-11-20 07:25:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-20 07:25:34,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:25:34,972 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:25:34,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:25:34,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:25:34,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:25:34,974 INFO L85 PathProgramCache]: Analyzing trace with hash 73768999, now seen corresponding path program 1 times [2021-11-20 07:25:34,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:25:34,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412380612] [2021-11-20 07:25:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:25:34,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:25:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:25:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:25:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:25:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:25:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:25:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:25:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:25:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:25:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:25:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:25:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:25:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:25:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:25:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:25:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:35,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:25:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:25:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:25:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:25:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:25:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:25:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:25:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:25:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:25:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-20 07:25:36,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:25:36,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412380612] [2021-11-20 07:25:36,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412380612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:25:36,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:25:36,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:25:36,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920139233] [2021-11-20 07:25:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:25:36,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:25:36,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:25:36,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:25:36,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:25:36,106 INFO L87 Difference]: Start difference. First operand 7047 states and 9444 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 07:25:38,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:40,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:42,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:51,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:53,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:25:53,052 INFO L93 Difference]: Finished difference Result 16555 states and 22255 transitions. [2021-11-20 07:25:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:25:53,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 237 [2021-11-20 07:25:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:25:53,129 INFO L225 Difference]: With dead ends: 16555 [2021-11-20 07:25:53,129 INFO L226 Difference]: Without dead ends: 9523 [2021-11-20 07:25:53,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:25:53,162 INFO L933 BasicCegarLoop]: 3461 mSDtfsCounter, 1910 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 903 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 6049 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 903 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:25:53,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2223 Valid, 6049 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [903 Valid, 1612 Invalid, 3 Unknown, 0 Unchecked, 16.6s Time] [2021-11-20 07:25:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2021-11-20 07:25:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 9080. [2021-11-20 07:25:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2275232246890253) internal successors, (7796), 6472 states have internal predecessors, (7796), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-11-20 07:25:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12142 transitions. [2021-11-20 07:25:53,640 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12142 transitions. Word has length 237 [2021-11-20 07:25:53,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:25:53,642 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12142 transitions. [2021-11-20 07:25:53,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-20 07:25:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12142 transitions. [2021-11-20 07:25:53,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-20 07:25:53,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:25:53,656 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:25:53,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:25:53,657 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:25:53,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:25:53,657 INFO L85 PathProgramCache]: Analyzing trace with hash 321915493, now seen corresponding path program 1 times [2021-11-20 07:25:53,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:25:53,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425128297] [2021-11-20 07:25:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:25:53,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:25:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:25:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:25:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:25:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:25:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:25:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:25:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:25:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:25:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:25:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:25:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:25:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:25:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:25:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:25:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:25:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:25:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:25:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:25:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:25:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:25:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:25:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:25:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:25:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:25:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:25:54,635 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:25:54,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:25:54,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425128297] [2021-11-20 07:25:54,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425128297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:25:54,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:25:54,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:25:54,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229032436] [2021-11-20 07:25:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:25:54,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:25:54,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:25:54,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:25:54,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:25:54,637 INFO L87 Difference]: Start difference. First operand 9080 states and 12142 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:25:56,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:25:58,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:10,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:11,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:26:11,377 INFO L93 Difference]: Finished difference Result 18582 states and 25014 transitions. [2021-11-20 07:26:11,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:26:11,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 237 [2021-11-20 07:26:11,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:26:11,430 INFO L225 Difference]: With dead ends: 18582 [2021-11-20 07:26:11,431 INFO L226 Difference]: Without dead ends: 9517 [2021-11-20 07:26:11,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:26:11,467 INFO L933 BasicCegarLoop]: 1990 mSDtfsCounter, 2300 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 937 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:26:11,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2519 Valid, 3505 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 1858 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2021-11-20 07:26:11,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-11-20 07:26:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-11-20 07:26:11,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2262635805384978) internal successors, (7788), 6472 states have internal predecessors, (7788), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-11-20 07:26:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12134 transitions. [2021-11-20 07:26:11,959 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12134 transitions. Word has length 237 [2021-11-20 07:26:11,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:26:11,960 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12134 transitions. [2021-11-20 07:26:11,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:26:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12134 transitions. [2021-11-20 07:26:11,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-20 07:26:11,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:26:11,974 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:26:11,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:26:11,975 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:26:11,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:26:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash -813124898, now seen corresponding path program 1 times [2021-11-20 07:26:11,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:26:11,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294076840] [2021-11-20 07:26:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:26:11,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:26:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:26:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:26:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:26:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:26:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:26:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:26:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:26:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:26:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:26:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:26:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:26:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:26:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:26:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:26:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:26:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:26:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:26:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:26:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:26:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:26:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:26:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:26:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:12,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:26:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:26:13,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:26:13,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294076840] [2021-11-20 07:26:13,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294076840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:26:13,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:26:13,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:26:13,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590338162] [2021-11-20 07:26:13,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:26:13,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:26:13,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:26:13,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:26:13,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:26:13,310 INFO L87 Difference]: Start difference. First operand 9080 states and 12134 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:26:15,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:17,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:29,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:26:30,489 INFO L93 Difference]: Finished difference Result 18582 states and 24998 transitions. [2021-11-20 07:26:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:26:30,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 238 [2021-11-20 07:26:30,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:26:30,530 INFO L225 Difference]: With dead ends: 18582 [2021-11-20 07:26:30,530 INFO L226 Difference]: Without dead ends: 9517 [2021-11-20 07:26:30,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:26:30,560 INFO L933 BasicCegarLoop]: 1987 mSDtfsCounter, 3460 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 3501 SdHoareTripleChecker+Invalid, 4149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:26:30,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3460 Valid, 3501 Invalid, 4149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1857 Invalid, 3 Unknown, 0 Unchecked, 16.6s Time] [2021-11-20 07:26:30,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-11-20 07:26:31,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-11-20 07:26:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2250039363879703) internal successors, (7780), 6472 states have internal predecessors, (7780), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-11-20 07:26:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12126 transitions. [2021-11-20 07:26:31,303 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12126 transitions. Word has length 238 [2021-11-20 07:26:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:26:31,304 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12126 transitions. [2021-11-20 07:26:31,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:26:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12126 transitions. [2021-11-20 07:26:31,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-20 07:26:31,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:26:31,320 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:26:31,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:26:31,320 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:26:31,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:26:31,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1525122047, now seen corresponding path program 1 times [2021-11-20 07:26:31,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:26:31,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039988721] [2021-11-20 07:26:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:26:31,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:26:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:26:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:31,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:26:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:26:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:26:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:26:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:26:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:26:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:26:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:26:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:26:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:26:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:26:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:26:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:26:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:26:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:26:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:26:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:26:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:26:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:26:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:26:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:26:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:26:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:26:32,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:26:32,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039988721] [2021-11-20 07:26:32,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039988721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:26:32,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:26:32,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:26:32,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791757998] [2021-11-20 07:26:32,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:26:32,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:26:32,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:26:32,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:26:32,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:26:32,552 INFO L87 Difference]: Start difference. First operand 9080 states and 12126 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:26:34,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:36,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:48,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:49,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:26:49,671 INFO L93 Difference]: Finished difference Result 18582 states and 24982 transitions. [2021-11-20 07:26:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:26:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 239 [2021-11-20 07:26:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:26:49,726 INFO L225 Difference]: With dead ends: 18582 [2021-11-20 07:26:49,727 INFO L226 Difference]: Without dead ends: 9517 [2021-11-20 07:26:49,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:26:49,752 INFO L933 BasicCegarLoop]: 1987 mSDtfsCounter, 3456 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3456 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:26:49,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3456 Valid, 3502 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1857 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2021-11-20 07:26:49,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-11-20 07:26:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-11-20 07:26:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2237442922374429) internal successors, (7772), 6472 states have internal predecessors, (7772), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-11-20 07:26:50,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12118 transitions. [2021-11-20 07:26:50,265 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12118 transitions. Word has length 239 [2021-11-20 07:26:50,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:26:50,268 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12118 transitions. [2021-11-20 07:26:50,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:26:50,269 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12118 transitions. [2021-11-20 07:26:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-20 07:26:50,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:26:50,282 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:26:50,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:26:50,283 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:26:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:26:50,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2007680582, now seen corresponding path program 1 times [2021-11-20 07:26:50,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:26:50,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280685422] [2021-11-20 07:26:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:26:50,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:26:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:26:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:26:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:26:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:26:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:26:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:26:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:26:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:26:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:26:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:26:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:26:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:26:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:26:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:26:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:26:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:26:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:26:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:26:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:26:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:26:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:26:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:26:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:26:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:26:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:26:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:26:51,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:26:51,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280685422] [2021-11-20 07:26:51,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280685422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:26:51,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:26:51,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:26:51,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479284740] [2021-11-20 07:26:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:26:51,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:26:51,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:26:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:26:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:26:51,369 INFO L87 Difference]: Start difference. First operand 9080 states and 12118 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:26:53,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:26:55,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:07,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:09,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:09,264 INFO L93 Difference]: Finished difference Result 18582 states and 24966 transitions. [2021-11-20 07:27:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:27:09,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 240 [2021-11-20 07:27:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:09,303 INFO L225 Difference]: With dead ends: 18582 [2021-11-20 07:27:09,303 INFO L226 Difference]: Without dead ends: 9517 [2021-11-20 07:27:09,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:27:09,329 INFO L933 BasicCegarLoop]: 1985 mSDtfsCounter, 3452 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3452 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:09,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3452 Valid, 3499 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1855 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2021-11-20 07:27:09,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-11-20 07:27:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-11-20 07:27:09,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2224846480869154) internal successors, (7764), 6472 states have internal predecessors, (7764), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-11-20 07:27:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12110 transitions. [2021-11-20 07:27:09,845 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12110 transitions. Word has length 240 [2021-11-20 07:27:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:09,846 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12110 transitions. [2021-11-20 07:27:09,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:27:09,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12110 transitions. [2021-11-20 07:27:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-20 07:27:09,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:09,860 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:27:09,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:27:09,861 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:09,861 INFO L85 PathProgramCache]: Analyzing trace with hash 327390621, now seen corresponding path program 1 times [2021-11-20 07:27:09,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690653076] [2021-11-20 07:27:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:09,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:27:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:27:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:27:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:27:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:27:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:27:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:27:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:27:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:27:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:27:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:27:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:27:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:27:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:27:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:27:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:27:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:27:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:27:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:27:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:27:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:27:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:27:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:27:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:27:10,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:10,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690653076] [2021-11-20 07:27:10,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690653076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:10,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:10,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:27:10,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479695829] [2021-11-20 07:27:10,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:10,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:27:10,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:27:10,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:27:10,882 INFO L87 Difference]: Start difference. First operand 9080 states and 12110 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:27:12,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:15,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:26,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:27:27,973 INFO L93 Difference]: Finished difference Result 18582 states and 24950 transitions. [2021-11-20 07:27:27,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:27:27,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 241 [2021-11-20 07:27:27,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:27:28,018 INFO L225 Difference]: With dead ends: 18582 [2021-11-20 07:27:28,018 INFO L226 Difference]: Without dead ends: 9517 [2021-11-20 07:27:28,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:27:28,049 INFO L933 BasicCegarLoop]: 1984 mSDtfsCounter, 3448 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 4146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:27:28,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3448 Valid, 3498 Invalid, 4146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1854 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2021-11-20 07:27:28,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2021-11-20 07:27:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9080. [2021-11-20 07:27:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 6351 states have (on average 1.2212250039363879) internal successors, (7756), 6472 states have internal predecessors, (7756), 2163 states have call successors, (2163), 562 states have call predecessors, (2163), 564 states have return successors, (2183), 2135 states have call predecessors, (2183), 2163 states have call successors, (2183) [2021-11-20 07:27:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12102 transitions. [2021-11-20 07:27:28,641 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12102 transitions. Word has length 241 [2021-11-20 07:27:28,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:27:28,642 INFO L470 AbstractCegarLoop]: Abstraction has 9080 states and 12102 transitions. [2021-11-20 07:27:28,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:27:28,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12102 transitions. [2021-11-20 07:27:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-20 07:27:28,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:27:28,657 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:27:28,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:27:28,657 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:27:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:27:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -185329514, now seen corresponding path program 1 times [2021-11-20 07:27:28,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:27:28,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82398821] [2021-11-20 07:27:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:27:28,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:27:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:27:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:27:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:27:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:27:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:27:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:27:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:27:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:27:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:27:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:27:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:27:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:27:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:27:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:27:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:27:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:27:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:27:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:27:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:27:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:27:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:27:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:27:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:27:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:27:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:27:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:27:29,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:27:29,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82398821] [2021-11-20 07:27:29,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82398821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:27:29,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:27:29,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:27:29,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680150421] [2021-11-20 07:27:29,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:27:29,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:27:29,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:27:29,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:27:29,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:27:29,724 INFO L87 Difference]: Start difference. First operand 9080 states and 12102 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:27:31,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:34,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:57,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:28:01,255 INFO L93 Difference]: Finished difference Result 27265 states and 36644 transitions. [2021-11-20 07:28:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:28:01,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 242 [2021-11-20 07:28:01,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:28:01,327 INFO L225 Difference]: With dead ends: 27265 [2021-11-20 07:28:01,327 INFO L226 Difference]: Without dead ends: 18200 [2021-11-20 07:28:01,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:28:01,353 INFO L933 BasicCegarLoop]: 3619 mSDtfsCounter, 3633 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 4673 mSolverCounterSat, 2451 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3800 SdHoareTripleChecker+Valid, 6905 SdHoareTripleChecker+Invalid, 7127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2451 IncrementalHoareTripleChecker+Valid, 4673 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:28:01,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3800 Valid, 6905 Invalid, 7127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2451 Valid, 4673 Invalid, 3 Unknown, 0 Unchecked, 30.4s Time] [2021-11-20 07:28:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18200 states. [2021-11-20 07:28:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18200 to 17419. [2021-11-20 07:28:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.215337776680655) internal successors, (14770), 12386 states have internal predecessors, (14770), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:28:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23181 transitions. [2021-11-20 07:28:02,436 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23181 transitions. Word has length 242 [2021-11-20 07:28:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:28:02,437 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23181 transitions. [2021-11-20 07:28:02,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:28:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23181 transitions. [2021-11-20 07:28:02,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-20 07:28:02,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:28:02,451 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:28:02,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:28:02,451 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:28:02,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:02,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1214732089, now seen corresponding path program 1 times [2021-11-20 07:28:02,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:02,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208677886] [2021-11-20 07:28:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:02,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:28:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:28:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:28:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:28:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:28:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:28:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:28:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:28:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:28:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:28:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:28:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:28:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:28:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:28:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:28:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:28:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:28:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:28:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:28:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:28:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:28:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:28:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:28:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:28:03,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208677886] [2021-11-20 07:28:03,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208677886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:03,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:03,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:28:03,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151970549] [2021-11-20 07:28:03,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:03,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:03,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:03,636 INFO L87 Difference]: Start difference. First operand 17419 states and 23181 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:28:05,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:07,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:10,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:20,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:22,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:28:22,420 INFO L93 Difference]: Finished difference Result 27213 states and 36521 transitions. [2021-11-20 07:28:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:28:22,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 243 [2021-11-20 07:28:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:28:22,478 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:28:22,478 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:28:22,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:28:22,504 INFO L933 BasicCegarLoop]: 1982 mSDtfsCounter, 3440 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 4144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:28:22,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3440 Valid, 3496 Invalid, 4144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1852 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-11-20 07:28:22,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:28:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:28:23,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2146795030033737) internal successors, (14762), 12386 states have internal predecessors, (14762), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:28:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23173 transitions. [2021-11-20 07:28:23,458 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23173 transitions. Word has length 243 [2021-11-20 07:28:23,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:28:23,459 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23173 transitions. [2021-11-20 07:28:23,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:28:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23173 transitions. [2021-11-20 07:28:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-20 07:28:23,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:28:23,474 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:28:23,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 07:28:23,475 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:28:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:23,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1781485426, now seen corresponding path program 1 times [2021-11-20 07:28:23,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:23,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503870267] [2021-11-20 07:28:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:23,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:28:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:28:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:28:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:28:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:28:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:28:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:28:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:28:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:28:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:28:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:28:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:28:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:28:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:28:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:28:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:28:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:28:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:28:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:28:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:28:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:28:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:28:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:28:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:28:24,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:24,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503870267] [2021-11-20 07:28:24,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503870267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:24,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:24,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:28:24,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706364273] [2021-11-20 07:28:24,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:24,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:24,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:24,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:24,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:24,532 INFO L87 Difference]: Start difference. First operand 17419 states and 23173 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:28:26,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:28,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:32,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:43,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:45,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:28:45,270 INFO L93 Difference]: Finished difference Result 27213 states and 36505 transitions. [2021-11-20 07:28:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:28:45,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 244 [2021-11-20 07:28:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:28:45,339 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:28:45,339 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:28:45,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:28:45,371 INFO L933 BasicCegarLoop]: 1981 mSDtfsCounter, 3436 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:28:45,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3436 Valid, 3495 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1851 Invalid, 3 Unknown, 0 Unchecked, 19.2s Time] [2021-11-20 07:28:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:28:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:28:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2140212293260924) internal successors, (14754), 12386 states have internal predecessors, (14754), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:28:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23165 transitions. [2021-11-20 07:28:46,425 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23165 transitions. Word has length 244 [2021-11-20 07:28:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:28:46,426 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23165 transitions. [2021-11-20 07:28:46,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:28:46,427 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23165 transitions. [2021-11-20 07:28:46,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-20 07:28:46,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:28:46,445 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:28:46,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 07:28:46,446 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:28:46,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:28:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2009481003, now seen corresponding path program 1 times [2021-11-20 07:28:46,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:28:46,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997660556] [2021-11-20 07:28:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:28:46,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:28:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:28:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:28:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:28:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:28:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:28:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:28:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:28:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:28:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:28:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:28:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:28:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:28:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:28:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:28:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:28:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:28:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:28:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:28:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:28:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:28:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:28:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:28:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:28:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:28:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:28:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:28:47,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:28:47,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997660556] [2021-11-20 07:28:47,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997660556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:28:47,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:28:47,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:28:47,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617065106] [2021-11-20 07:28:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:28:47,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:28:47,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:28:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:28:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:28:47,788 INFO L87 Difference]: Start difference. First operand 17419 states and 23165 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:28:49,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:52,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:55,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:06,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:07,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:07,807 INFO L93 Difference]: Finished difference Result 27213 states and 36489 transitions. [2021-11-20 07:29:07,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:29:07,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 245 [2021-11-20 07:29:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:07,877 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:29:07,877 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:29:07,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:29:07,901 INFO L933 BasicCegarLoop]: 1980 mSDtfsCounter, 3432 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 2289 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 3494 SdHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:07,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3432 Valid, 3494 Invalid, 4142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 1850 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2021-11-20 07:29:07,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:29:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:29:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.213362955648811) internal successors, (14746), 12386 states have internal predecessors, (14746), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:29:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23157 transitions. [2021-11-20 07:29:09,005 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23157 transitions. Word has length 245 [2021-11-20 07:29:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:09,006 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23157 transitions. [2021-11-20 07:29:09,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:29:09,007 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23157 transitions. [2021-11-20 07:29:09,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-20 07:29:09,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:09,019 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:09,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 07:29:09,020 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:09,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:09,020 INFO L85 PathProgramCache]: Analyzing trace with hash 844160590, now seen corresponding path program 1 times [2021-11-20 07:29:09,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:09,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996089537] [2021-11-20 07:29:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:09,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:29:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:29:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:29:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:29:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:29:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:29:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:29:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:29:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:29:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:29:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:29:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:29:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:29:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:29:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:29:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:29:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:29:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:29:10,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:10,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996089537] [2021-11-20 07:29:10,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996089537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:10,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:10,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:29:10,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747197113] [2021-11-20 07:29:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:10,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:29:10,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:29:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:29:10,146 INFO L87 Difference]: Start difference. First operand 17419 states and 23157 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:29:12,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:14,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:17,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:28,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:30,534 INFO L93 Difference]: Finished difference Result 27213 states and 36473 transitions. [2021-11-20 07:29:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:29:30,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 246 [2021-11-20 07:29:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:30,594 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:29:30,595 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:29:30,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:29:30,625 INFO L933 BasicCegarLoop]: 1980 mSDtfsCounter, 3428 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 4140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:30,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3428 Valid, 3495 Invalid, 4140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1850 Invalid, 3 Unknown, 0 Unchecked, 18.8s Time] [2021-11-20 07:29:30,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:29:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:29:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2127046819715297) internal successors, (14738), 12386 states have internal predecessors, (14738), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:29:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23149 transitions. [2021-11-20 07:29:32,034 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23149 transitions. Word has length 246 [2021-11-20 07:29:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:32,035 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23149 transitions. [2021-11-20 07:29:32,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:29:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23149 transitions. [2021-11-20 07:29:32,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-20 07:29:32,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:32,049 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:32,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 07:29:32,049 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:32,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:32,050 INFO L85 PathProgramCache]: Analyzing trace with hash -772746639, now seen corresponding path program 1 times [2021-11-20 07:29:32,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:32,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43121811] [2021-11-20 07:29:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:32,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:29:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:29:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:29:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:29:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:29:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:29:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:29:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:29:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:29:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:29:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:29:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:29:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:29:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:29:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:29:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:29:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:29:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:29:33,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:33,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43121811] [2021-11-20 07:29:33,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43121811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:33,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:33,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:29:33,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106118155] [2021-11-20 07:29:33,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:33,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:29:33,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:29:33,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:29:33,164 INFO L87 Difference]: Start difference. First operand 17419 states and 23149 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:29:35,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:37,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:50,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:52,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:52,409 INFO L93 Difference]: Finished difference Result 27213 states and 36457 transitions. [2021-11-20 07:29:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:29:52,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 247 [2021-11-20 07:29:52,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:52,466 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:29:52,467 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:29:52,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:29:52,489 INFO L933 BasicCegarLoop]: 1979 mSDtfsCounter, 3424 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3424 SdHoareTripleChecker+Valid, 3494 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:52,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3424 Valid, 3494 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1849 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2021-11-20 07:29:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:29:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:29:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2120464082942484) internal successors, (14730), 12386 states have internal predecessors, (14730), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:29:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23141 transitions. [2021-11-20 07:29:53,652 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23141 transitions. Word has length 247 [2021-11-20 07:29:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:53,653 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23141 transitions. [2021-11-20 07:29:53,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:29:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23141 transitions. [2021-11-20 07:29:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-20 07:29:53,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:53,667 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:53,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 07:29:53,667 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash 757253418, now seen corresponding path program 1 times [2021-11-20 07:29:53,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:53,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492935269] [2021-11-20 07:29:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:53,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:29:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:29:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:29:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:29:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:29:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:29:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:29:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:29:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:29:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:29:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:29:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:29:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:29:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:29:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:29:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:29:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:29:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:29:54,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:54,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492935269] [2021-11-20 07:29:54,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492935269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:54,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:54,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:29:54,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552878316] [2021-11-20 07:29:54,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:54,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:29:54,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:29:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:29:54,895 INFO L87 Difference]: Start difference. First operand 17419 states and 23141 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:29:56,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:59,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:12,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:14,007 INFO L93 Difference]: Finished difference Result 27213 states and 36441 transitions. [2021-11-20 07:30:14,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:30:14,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 248 [2021-11-20 07:30:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:14,081 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:30:14,081 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:30:14,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:30:14,112 INFO L933 BasicCegarLoop]: 1978 mSDtfsCounter, 3420 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 3493 SdHoareTripleChecker+Invalid, 4138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:14,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3420 Valid, 3493 Invalid, 4138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1848 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2021-11-20 07:30:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:30:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:30:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.211388134616967) internal successors, (14722), 12386 states have internal predecessors, (14722), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:30:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23133 transitions. [2021-11-20 07:30:15,270 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23133 transitions. Word has length 248 [2021-11-20 07:30:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:15,271 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23133 transitions. [2021-11-20 07:30:15,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:30:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23133 transitions. [2021-11-20 07:30:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-20 07:30:15,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:15,281 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:15,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 07:30:15,282 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:30:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1057131533, now seen corresponding path program 1 times [2021-11-20 07:30:15,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605353024] [2021-11-20 07:30:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:15,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:30:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:30:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:30:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:30:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:30:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:30:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:30:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:15,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:30:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:30:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:30:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:30:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:30:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:30:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:30:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:30:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:30:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:30:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:16,336 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:30:16,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:16,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605353024] [2021-11-20 07:30:16,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605353024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:16,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:16,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:30:16,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643274945] [2021-11-20 07:30:16,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:16,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:16,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:16,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:16,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:16,339 INFO L87 Difference]: Start difference. First operand 17419 states and 23133 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:30:18,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:20,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:33,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:35,663 INFO L93 Difference]: Finished difference Result 27213 states and 36425 transitions. [2021-11-20 07:30:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:30:35,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 249 [2021-11-20 07:30:35,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:35,723 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:30:35,724 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:30:35,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:30:35,759 INFO L933 BasicCegarLoop]: 1977 mSDtfsCounter, 3416 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 4137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:35,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3416 Valid, 3492 Invalid, 4137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1847 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2021-11-20 07:30:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:30:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:30:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2107298609396857) internal successors, (14714), 12386 states have internal predecessors, (14714), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:30:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23125 transitions. [2021-11-20 07:30:37,005 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23125 transitions. Word has length 249 [2021-11-20 07:30:37,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:37,006 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23125 transitions. [2021-11-20 07:30:37,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:30:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23125 transitions. [2021-11-20 07:30:37,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-20 07:30:37,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:37,015 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:37,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 07:30:37,016 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:30:37,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:37,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1877935110, now seen corresponding path program 1 times [2021-11-20 07:30:37,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:37,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341584046] [2021-11-20 07:30:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:37,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:30:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:30:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:30:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:30:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:30:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:30:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:30:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:30:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:30:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:30:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:30:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:30:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:30:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:30:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:30:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:30:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:30:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:30:37,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:37,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341584046] [2021-11-20 07:30:37,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341584046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:37,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:37,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:30:37,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529773649] [2021-11-20 07:30:37,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:37,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:37,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:37,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:37,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:37,879 INFO L87 Difference]: Start difference. First operand 17419 states and 23125 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:30:39,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:42,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:55,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:30:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:57,440 INFO L93 Difference]: Finished difference Result 27213 states and 36409 transitions. [2021-11-20 07:30:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:30:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 250 [2021-11-20 07:30:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:57,499 INFO L225 Difference]: With dead ends: 27213 [2021-11-20 07:30:57,499 INFO L226 Difference]: Without dead ends: 18148 [2021-11-20 07:30:57,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:30:57,526 INFO L933 BasicCegarLoop]: 1976 mSDtfsCounter, 3412 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 2287 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2287 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:57,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3412 Valid, 3491 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2287 Valid, 1846 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2021-11-20 07:30:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18148 states. [2021-11-20 07:30:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18148 to 17419. [2021-11-20 07:30:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17419 states, 12153 states have (on average 1.2100715872624044) internal successors, (14706), 12386 states have internal predecessors, (14706), 4164 states have call successors, (4164), 1096 states have call predecessors, (4164), 1100 states have return successors, (4247), 4108 states have call predecessors, (4247), 4164 states have call successors, (4247) [2021-11-20 07:30:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17419 states to 17419 states and 23117 transitions. [2021-11-20 07:30:59,009 INFO L78 Accepts]: Start accepts. Automaton has 17419 states and 23117 transitions. Word has length 250 [2021-11-20 07:30:59,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:59,010 INFO L470 AbstractCegarLoop]: Abstraction has 17419 states and 23117 transitions. [2021-11-20 07:30:59,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:30:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 17419 states and 23117 transitions. [2021-11-20 07:30:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-20 07:30:59,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:59,019 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:59,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 07:30:59,019 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:30:59,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:59,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1667558825, now seen corresponding path program 1 times [2021-11-20 07:30:59,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:59,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298837613] [2021-11-20 07:30:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:59,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:30:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:30:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:30:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:30:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:30:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:30:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:30:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:30:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:30:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:30:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:30:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:30:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:30:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:30:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:30:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:30:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:30:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:30:59,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:59,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298837613] [2021-11-20 07:30:59,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298837613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:59,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:59,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:30:59,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88145909] [2021-11-20 07:30:59,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:59,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:30:59,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:30:59,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:59,878 INFO L87 Difference]: Start difference. First operand 17419 states and 23117 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:31:01,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:04,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:07,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:31,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:36,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:44,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:31:44,569 INFO L93 Difference]: Finished difference Result 63287 states and 84881 transitions. [2021-11-20 07:31:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:31:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 251 [2021-11-20 07:31:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:31:44,765 INFO L225 Difference]: With dead ends: 63287 [2021-11-20 07:31:44,765 INFO L226 Difference]: Without dead ends: 54222 [2021-11-20 07:31:44,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:31:44,805 INFO L933 BasicCegarLoop]: 4171 mSDtfsCounter, 9425 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 4952 mSolverCounterSat, 5033 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9885 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 9989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5033 IncrementalHoareTripleChecker+Valid, 4952 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:31:44,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9885 Valid, 7188 Invalid, 9989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5033 Valid, 4952 Invalid, 4 Unknown, 0 Unchecked, 40.1s Time] [2021-11-20 07:31:44,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54222 states. [2021-11-20 07:31:47,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54222 to 34707. [2021-11-20 07:31:47,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34707 states, 24198 states have (on average 1.2106785684767336) internal successors, (29296), 24679 states have internal predecessors, (29296), 8323 states have call successors, (8323), 2192 states have call predecessors, (8323), 2184 states have return successors, (8489), 8179 states have call predecessors, (8489), 8323 states have call successors, (8489) [2021-11-20 07:31:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34707 states to 34707 states and 46108 transitions. [2021-11-20 07:31:47,931 INFO L78 Accepts]: Start accepts. Automaton has 34707 states and 46108 transitions. Word has length 251 [2021-11-20 07:31:47,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:31:47,932 INFO L470 AbstractCegarLoop]: Abstraction has 34707 states and 46108 transitions. [2021-11-20 07:31:47,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-20 07:31:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 34707 states and 46108 transitions. [2021-11-20 07:31:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-20 07:31:47,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:31:47,943 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:31:47,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 07:31:47,943 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:31:47,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:31:47,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1696187976, now seen corresponding path program 1 times [2021-11-20 07:31:47,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:31:47,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582675720] [2021-11-20 07:31:47,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:31:47,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:31:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:31:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:31:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:31:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:31:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:31:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:31:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:31:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:31:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:31:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:31:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:31:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:31:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:31:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:31:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:31:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:31:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:31:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:31:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:31:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:31:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:31:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:31:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:31:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-20 07:31:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:31:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2021-11-20 07:31:48,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:31:48,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582675720] [2021-11-20 07:31:48,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582675720] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:31:48,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:31:48,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:31:48,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119326664] [2021-11-20 07:31:48,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:31:48,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:31:48,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:31:48,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:31:48,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:31:48,712 INFO L87 Difference]: Start difference. First operand 34707 states and 46108 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-20 07:31:50,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:31:54,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:09,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:11,501 INFO L93 Difference]: Finished difference Result 36193 states and 48392 transitions. [2021-11-20 07:32:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:32:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 251 [2021-11-20 07:32:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:11,624 INFO L225 Difference]: With dead ends: 36193 [2021-11-20 07:32:11,624 INFO L226 Difference]: Without dead ends: 36191 [2021-11-20 07:32:11,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:32:11,638 INFO L933 BasicCegarLoop]: 1978 mSDtfsCounter, 656 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 418 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 6972 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:11,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 6972 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 2678 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2021-11-20 07:32:11,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36191 states. [2021-11-20 07:32:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36191 to 34727. [2021-11-20 07:32:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34727 states, 24213 states have (on average 1.2103415520588114) internal successors, (29306), 24694 states have internal predecessors, (29306), 8323 states have call successors, (8323), 2192 states have call predecessors, (8323), 2189 states have return successors, (8499), 8184 states have call predecessors, (8499), 8323 states have call successors, (8499) [2021-11-20 07:32:14,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34727 states to 34727 states and 46128 transitions. [2021-11-20 07:32:14,467 INFO L78 Accepts]: Start accepts. Automaton has 34727 states and 46128 transitions. Word has length 251 [2021-11-20 07:32:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:14,467 INFO L470 AbstractCegarLoop]: Abstraction has 34727 states and 46128 transitions. [2021-11-20 07:32:14,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2021-11-20 07:32:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 34727 states and 46128 transitions. [2021-11-20 07:32:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-20 07:32:14,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:14,487 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:32:14,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 07:32:14,487 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2073421253, now seen corresponding path program 1 times [2021-11-20 07:32:14,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:14,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027163117] [2021-11-20 07:32:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:14,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:32:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:32:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:32:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:32:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:32:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:32:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:32:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:32:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:32:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:32:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:32:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:32:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:32:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-20 07:32:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:32:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-20 07:32:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 07:32:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:32:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-20 07:32:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 07:32:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 07:32:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:32:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 07:32:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 07:32:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-20 07:32:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:32:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:32:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-20 07:32:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:32:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:32:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-20 07:32:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-20 07:32:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 07:32:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-20 07:32:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2021-11-20 07:32:15,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:15,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027163117] [2021-11-20 07:32:15,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027163117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:15,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:32:15,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:32:15,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490029713] [2021-11-20 07:32:15,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:15,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:32:15,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:15,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:32:15,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:32:15,227 INFO L87 Difference]: Start difference. First operand 34727 states and 46128 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-20 07:32:17,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:19,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:24,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:31,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:32:37,738 INFO L93 Difference]: Finished difference Result 64716 states and 85900 transitions. [2021-11-20 07:32:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:32:37,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 346 [2021-11-20 07:32:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:32:37,885 INFO L225 Difference]: With dead ends: 64716 [2021-11-20 07:32:37,886 INFO L226 Difference]: Without dead ends: 30004 [2021-11-20 07:32:37,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:37,988 INFO L933 BasicCegarLoop]: 2156 mSDtfsCounter, 2541 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 1246 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 4261 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:32:37,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2857 Valid, 4261 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 1573 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time] [2021-11-20 07:32:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30004 states. [2021-11-20 07:32:40,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30004 to 28480. [2021-11-20 07:32:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28480 states, 19986 states have (on average 1.2048934253977786) internal successors, (24081), 20395 states have internal predecessors, (24081), 6574 states have call successors, (6574), 1913 states have call predecessors, (6574), 1918 states have return successors, (6702), 6459 states have call predecessors, (6702), 6574 states have call successors, (6702) [2021-11-20 07:32:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28480 states to 28480 states and 37357 transitions. [2021-11-20 07:32:40,337 INFO L78 Accepts]: Start accepts. Automaton has 28480 states and 37357 transitions. Word has length 346 [2021-11-20 07:32:40,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:32:40,338 INFO L470 AbstractCegarLoop]: Abstraction has 28480 states and 37357 transitions. [2021-11-20 07:32:40,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-20 07:32:40,338 INFO L276 IsEmpty]: Start isEmpty. Operand 28480 states and 37357 transitions. [2021-11-20 07:32:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-20 07:32:40,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:32:40,343 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 8, 8, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 07:32:40,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 07:32:40,344 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:32:40,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:32:40,344 INFO L85 PathProgramCache]: Analyzing trace with hash 701684613, now seen corresponding path program 1 times [2021-11-20 07:32:40,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:32:40,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530596494] [2021-11-20 07:32:40,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:32:40,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:32:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:32:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:32:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:32:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:32:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:32:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:32:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:32:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:32:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:32:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:32:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:32:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:32:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:32:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:32:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:32:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:32:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:32:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:32:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:32:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:32:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:32:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-20 07:32:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-20 07:32:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-20 07:32:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-20 07:32:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:32:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 07:32:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:32:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:32:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-20 07:32:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-20 07:32:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-20 07:32:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-20 07:32:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:32:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2021-11-20 07:32:41,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:32:41,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530596494] [2021-11-20 07:32:41,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530596494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:32:41,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:32:41,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:32:41,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437731352] [2021-11-20 07:32:41,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:32:41,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:32:41,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:32:41,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:32:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:32:41,267 INFO L87 Difference]: Start difference. First operand 28480 states and 37357 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-20 07:32:43,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:45,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:47,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:57,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:32:59,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:10,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:33:17,009 INFO L93 Difference]: Finished difference Result 65618 states and 87127 transitions. [2021-11-20 07:33:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:33:17,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 370 [2021-11-20 07:33:17,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:33:17,196 INFO L225 Difference]: With dead ends: 65618 [2021-11-20 07:33:17,196 INFO L226 Difference]: Without dead ends: 37174 [2021-11-20 07:33:17,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:33:17,285 INFO L933 BasicCegarLoop]: 3181 mSDtfsCounter, 2901 mSDsluCounter, 3324 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 1940 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 6505 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1940 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:33:17,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3166 Valid, 6505 Invalid, 4847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1940 Valid, 2902 Invalid, 5 Unknown, 0 Unchecked, 32.1s Time] [2021-11-20 07:33:17,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37174 states. [2021-11-20 07:33:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37174 to 33343. [2021-11-20 07:33:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33343 states, 23445 states have (on average 1.2043079547878013) internal successors, (28235), 23920 states have internal predecessors, (28235), 7702 states have call successors, (7702), 2189 states have call predecessors, (7702), 2194 states have return successors, (7806), 7573 states have call predecessors, (7806), 7702 states have call successors, (7806) [2021-11-20 07:33:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33343 states to 33343 states and 43743 transitions. [2021-11-20 07:33:20,431 INFO L78 Accepts]: Start accepts. Automaton has 33343 states and 43743 transitions. Word has length 370 [2021-11-20 07:33:20,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:33:20,432 INFO L470 AbstractCegarLoop]: Abstraction has 33343 states and 43743 transitions. [2021-11-20 07:33:20,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-20 07:33:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 33343 states and 43743 transitions. [2021-11-20 07:33:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-11-20 07:33:20,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:33:20,441 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 07:33:20,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 07:33:20,442 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:33:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:33:20,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1452614250, now seen corresponding path program 1 times [2021-11-20 07:33:20,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:33:20,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505102282] [2021-11-20 07:33:20,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:33:20,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:33:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:33:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:20,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:33:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:33:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:33:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:33:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:33:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:33:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:33:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:33:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:33:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:33:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:33:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:33:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:33:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:33:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:33:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:33:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:33:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:33:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:33:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:33:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:33:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 07:33:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 07:33:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-20 07:33:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-20 07:33:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 07:33:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 07:33:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-20 07:33:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-20 07:33:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-20 07:33:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:33:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 07:33:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:33:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:33:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-11-20 07:33:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 07:33:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-11-20 07:33:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-11-20 07:33:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:33:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-11-20 07:33:21,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:33:21,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505102282] [2021-11-20 07:33:21,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505102282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:33:21,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:33:21,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:33:21,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696418240] [2021-11-20 07:33:21,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:33:21,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:33:21,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:33:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:33:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:33:21,412 INFO L87 Difference]: Start difference. First operand 33343 states and 43743 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-20 07:33:23,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:25,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:28,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:36,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:38,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:48,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:33:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:33:56,539 INFO L93 Difference]: Finished difference Result 75611 states and 100293 transitions. [2021-11-20 07:33:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:33:56,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 460 [2021-11-20 07:33:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:33:56,688 INFO L225 Difference]: With dead ends: 75611 [2021-11-20 07:33:56,688 INFO L226 Difference]: Without dead ends: 42647 [2021-11-20 07:33:56,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:33:56,767 INFO L933 BasicCegarLoop]: 3007 mSDtfsCounter, 2618 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 1993 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 6311 SdHoareTripleChecker+Invalid, 4869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1993 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:33:56,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2825 Valid, 6311 Invalid, 4869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1993 Valid, 2871 Invalid, 5 Unknown, 0 Unchecked, 30.8s Time] [2021-11-20 07:33:56,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42647 states. [2021-11-20 07:34:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42647 to 38279. [2021-11-20 07:34:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38279 states, 26938 states have (on average 1.203281609622095) internal successors, (32414), 27479 states have internal predecessors, (32414), 8808 states have call successors, (8808), 2527 states have call predecessors, (8808), 2531 states have return successors, (8916), 8660 states have call predecessors, (8916), 8808 states have call successors, (8916) [2021-11-20 07:34:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38279 states to 38279 states and 50138 transitions. [2021-11-20 07:34:00,391 INFO L78 Accepts]: Start accepts. Automaton has 38279 states and 50138 transitions. Word has length 460 [2021-11-20 07:34:00,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:34:00,392 INFO L470 AbstractCegarLoop]: Abstraction has 38279 states and 50138 transitions. [2021-11-20 07:34:00,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-20 07:34:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 38279 states and 50138 transitions. [2021-11-20 07:34:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-11-20 07:34:00,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:34:00,402 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 07:34:00,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 07:34:00,402 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:34:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:34:00,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1472155372, now seen corresponding path program 1 times [2021-11-20 07:34:00,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:34:00,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225361162] [2021-11-20 07:34:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:34:00,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:34:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:34:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:34:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:34:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:34:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:34:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:34:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:34:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:34:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:34:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:34:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:34:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:34:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:34:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:34:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:34:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:34:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:34:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:34:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:34:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:34:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:34:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:34:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 07:34:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 07:34:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-20 07:34:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-20 07:34:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 07:34:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 07:34:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-20 07:34:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-20 07:34:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-20 07:34:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:34:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-20 07:34:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:34:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-11-20 07:34:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-20 07:34:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-11-20 07:34:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-11-20 07:34:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:01,657 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2021-11-20 07:34:01,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:34:01,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225361162] [2021-11-20 07:34:01,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225361162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:34:01,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:34:01,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:34:01,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949979637] [2021-11-20 07:34:01,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:34:01,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:34:01,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:34:01,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:34:01,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:34:01,660 INFO L87 Difference]: Start difference. First operand 38279 states and 50138 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-20 07:34:03,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:34:06,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:34:08,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:34:16,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:34:18,429 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:34:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:34:36,978 INFO L93 Difference]: Finished difference Result 86113 states and 114021 transitions. [2021-11-20 07:34:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:34:36,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 460 [2021-11-20 07:34:36,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:34:37,167 INFO L225 Difference]: With dead ends: 86113 [2021-11-20 07:34:37,167 INFO L226 Difference]: Without dead ends: 48213 [2021-11-20 07:34:37,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:34:37,245 INFO L933 BasicCegarLoop]: 3192 mSDtfsCounter, 2627 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 2900 mSolverCounterSat, 1919 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 6778 SdHoareTripleChecker+Invalid, 4824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1919 IncrementalHoareTripleChecker+Valid, 2900 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:34:37,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2834 Valid, 6778 Invalid, 4824 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1919 Valid, 2900 Invalid, 5 Unknown, 0 Unchecked, 30.7s Time] [2021-11-20 07:34:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48213 states. [2021-11-20 07:34:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48213 to 43311. [2021-11-20 07:34:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43311 states, 30511 states have (on average 1.2024843499065911) internal successors, (36689), 31118 states have internal predecessors, (36689), 9922 states have call successors, (9922), 2873 states have call predecessors, (9922), 2876 states have return successors, (10034), 9755 states have call predecessors, (10034), 9922 states have call successors, (10034) [2021-11-20 07:34:41,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43311 states to 43311 states and 56645 transitions. [2021-11-20 07:34:41,063 INFO L78 Accepts]: Start accepts. Automaton has 43311 states and 56645 transitions. Word has length 460 [2021-11-20 07:34:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:34:41,064 INFO L470 AbstractCegarLoop]: Abstraction has 43311 states and 56645 transitions. [2021-11-20 07:34:41,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 3 states have internal predecessors, (208), 3 states have call successors, (44), 4 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-20 07:34:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 43311 states and 56645 transitions. [2021-11-20 07:34:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-11-20 07:34:41,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:34:41,072 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 11, 11, 11, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 07:34:41,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 07:34:41,072 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:34:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:34:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1780685391, now seen corresponding path program 1 times [2021-11-20 07:34:41,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:34:41,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532481415] [2021-11-20 07:34:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:34:41,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:34:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:34:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:34:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:34:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:34:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:34:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 07:34:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-20 07:34:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:34:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 07:34:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 07:34:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 07:34:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-20 07:34:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-20 07:34:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:34:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:34:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:34:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:34:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 07:34:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 07:34:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-20 07:34:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:34:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-20 07:34:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 07:34:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-11-20 07:34:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-20 07:34:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-20 07:34:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-20 07:34:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-20 07:34:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-20 07:34:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-11-20 07:34:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-20 07:34:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-20 07:34:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-20 07:34:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-20 07:34:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:34:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-20 07:34:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:34:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:34:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-20 07:34:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-20 07:34:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2021-11-20 07:34:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-20 07:34:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:34:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-11-20 07:34:42,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:34:42,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532481415] [2021-11-20 07:34:42,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532481415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:34:42,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:34:42,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:34:42,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110425303] [2021-11-20 07:34:42,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:34:42,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:34:42,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:34:42,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:34:42,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:34:42,015 INFO L87 Difference]: Start difference. First operand 43311 states and 56645 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 4 states have internal predecessors, (215), 3 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-20 07:34:44,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:34:46,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []