./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:32:34,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:32:34,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:32:34,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:32:34,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:32:34,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:32:34,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:32:34,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:32:34,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:32:34,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:32:34,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:32:34,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:32:34,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:32:34,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:32:34,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:32:34,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:32:34,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:32:34,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:32:34,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:32:34,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:32:34,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:32:34,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:32:34,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:32:34,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:32:34,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:32:34,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:32:34,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:32:34,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:32:34,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:32:34,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:32:34,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:32:34,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:32:34,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:32:34,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:32:34,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:32:34,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:32:34,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:32:34,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:32:34,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:32:34,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:32:34,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:32:34,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:32:34,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:32:34,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:32:34,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:32:34,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:32:34,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:32:34,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:32:34,672 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:32:34,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:32:34,672 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:32:34,672 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:32:34,674 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:32:34,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:32:34,674 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:32:34,674 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:32:34,674 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:32:34,675 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:32:34,675 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:32:34,675 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:32:34,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:32:34,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:32:34,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:32:34,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:32:34,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:32:34,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:32:34,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:32:34,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:32:34,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:32:34,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:32:34,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:32:34,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:32:34,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:32:34,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:32:34,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:32:34,681 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:32:34,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:32:34,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:32:34,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:32:34,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:32:34,682 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 [2021-11-23 02:32:34,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:32:35,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:32:35,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:32:35,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:32:35,013 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:32:35,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-23 02:32:35,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/data/816c1ffec/d141039161ae4225ad29ade67fb2260a/FLAG7c043e368 [2021-11-23 02:32:36,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:32:36,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-23 02:32:36,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/data/816c1ffec/d141039161ae4225ad29ade67fb2260a/FLAG7c043e368 [2021-11-23 02:32:36,561 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/data/816c1ffec/d141039161ae4225ad29ade67fb2260a [2021-11-23 02:32:36,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:32:36,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:32:36,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:32:36,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:32:36,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:32:36,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:32:36" (1/1) ... [2021-11-23 02:32:36,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bfca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:36, skipping insertion in model container [2021-11-23 02:32:36,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:32:36" (1/1) ... [2021-11-23 02:32:36,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:32:36,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:32:42,007 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_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2021-11-23 02:32:42,010 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_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2021-11-23 02:32:42,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:32:42,131 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:32:42,744 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_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2021-11-23 02:32:42,745 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_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2021-11-23 02:32:42,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:32:43,219 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:32:43,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43 WrapperNode [2021-11-23 02:32:43,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:32:43,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:32:43,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:32:43,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:32:43,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:43,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:43,935 INFO L137 Inliner]: procedures = 567, calls = 4460, calls flagged for inlining = 273, calls inlined = 252, statements flattened = 9108 [2021-11-23 02:32:43,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:32:43,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:32:43,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:32:43,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:32:43,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:43,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:32:44,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:32:44,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:32:44,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:32:44,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (1/1) ... [2021-11-23 02:32:44,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:32:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:32:44,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:32:44,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bf5f4a7-9497-4b39-a04f-c8418bf2a0ae/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 02:32:44,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 02:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:32:44,644 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:32:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-23 02:32:44,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-23 02:32:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-23 02:32:44,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-23 02:32:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-11-23 02:32:44,645 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-11-23 02:32:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:32:44,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:32:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2021-11-23 02:32:44,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2021-11-23 02:32:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:32:44,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:32:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:32:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:32:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-11-23 02:32:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-11-23 02:32:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-11-23 02:32:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-11-23 02:32:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-23 02:32:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-23 02:32:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-11-23 02:32:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-11-23 02:32:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:32:44,648 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:32:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-23 02:32:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-23 02:32:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-23 02:32:44,649 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-23 02:32:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-11-23 02:32:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-11-23 02:32:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-23 02:32:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-23 02:32:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 02:32:44,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 02:32:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:32:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:32:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-23 02:32:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2021-11-23 02:32:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-23 02:32:44,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2021-11-23 02:32:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-11-23 02:32:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-11-23 02:32:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:32:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:32:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:32:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:32:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:32:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:32:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-23 02:32:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-23 02:32:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:32:44,653 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:32:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-23 02:32:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-23 02:32:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:32:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:32:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:32:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:32:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-23 02:32:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-23 02:32:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:32:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:32:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 02:32:44,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 02:32:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:32:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-23 02:32:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-23 02:32:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-23 02:32:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-23 02:32:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:32:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:32:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2021-11-23 02:32:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2021-11-23 02:32:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:32:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:32:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2021-11-23 02:32:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2021-11-23 02:32:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:32:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-11-23 02:32:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-11-23 02:32:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-23 02:32:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-23 02:32:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-11-23 02:32:44,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-11-23 02:32:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:32:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:32:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 02:32:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 02:32:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:32:44,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:32:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:32:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2021-11-23 02:32:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2021-11-23 02:32:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:32:44,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:32:44,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:32:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-11-23 02:32:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-11-23 02:32:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-23 02:32:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-23 02:32:44,661 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:32:44,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:32:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:32:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:32:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:32:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:32:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:32:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:32:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:32:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:32:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:32:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:32:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-11-23 02:32:44,663 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-11-23 02:32:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2021-11-23 02:32:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2021-11-23 02:32:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-23 02:32:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-23 02:32:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 02:32:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 02:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-11-23 02:32:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-11-23 02:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:32:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-11-23 02:32:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-11-23 02:32:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:32:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:32:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:32:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-23 02:32:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-23 02:32:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:32:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:32:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:32:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:32:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 02:32:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 02:32:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 02:32:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 02:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:32:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:32:44,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-23 02:32:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-23 02:32:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:32:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:32:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 02:32:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 02:32:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:32:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:32:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:32:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:32:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:32:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:32:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-11-23 02:32:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-11-23 02:32:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 02:32:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 02:32:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-11-23 02:32:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-11-23 02:32:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-23 02:32:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-23 02:32:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:32:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:32:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-11-23 02:32:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-11-23 02:32:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-23 02:32:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-23 02:32:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:32:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:32:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-11-23 02:32:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-11-23 02:32:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:32:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:32:44,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 02:32:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 02:32:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-11-23 02:32:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-11-23 02:32:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:32:44,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:32:44,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-23 02:32:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2021-11-23 02:32:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-11-23 02:32:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-11-23 02:32:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-23 02:32:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-23 02:32:44,675 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-11-23 02:32:44,675 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-11-23 02:32:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-23 02:32:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-23 02:32:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-11-23 02:32:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-11-23 02:32:44,676 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-11-23 02:32:44,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-11-23 02:32:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-23 02:32:44,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-23 02:32:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:32:44,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:32:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-11-23 02:32:44,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-11-23 02:32:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:32:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:32:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:32:44,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:32:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:32:44,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:32:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-23 02:32:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-23 02:32:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 02:32:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 02:32:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:32:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:32:44,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 02:32:44,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 02:32:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:32:44,680 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:32:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-23 02:32:44,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-23 02:32:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:32:44,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2021-11-23 02:32:44,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2021-11-23 02:32:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-23 02:32:44,681 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-23 02:32:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:32:44,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:32:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:32:44,681 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-11-23 02:32:44,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-11-23 02:32:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-11-23 02:32:44,682 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-11-23 02:32:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:32:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:32:44,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:32:44,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 02:32:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 02:32:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:32:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:32:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:32:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:32:44,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 02:32:44,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 02:32:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-23 02:32:44,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-23 02:32:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-23 02:32:44,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-23 02:32:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-11-23 02:32:44,684 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-11-23 02:32:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-23 02:32:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-23 02:32:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 02:32:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 02:32:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-11-23 02:32:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-11-23 02:32:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2021-11-23 02:32:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2021-11-23 02:32:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:32:44,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:32:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:32:44,686 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:32:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 02:32:44,686 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 02:32:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2021-11-23 02:32:44,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2021-11-23 02:32:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:32:44,687 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:32:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-11-23 02:32:44,687 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-11-23 02:32:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:32:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-11-23 02:32:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-11-23 02:32:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-23 02:32:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-23 02:32:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 02:32:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 02:32:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:32:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:32:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-11-23 02:32:44,689 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-11-23 02:32:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-11-23 02:32:44,689 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-11-23 02:32:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:32:44,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:32:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-11-23 02:32:44,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-11-23 02:32:44,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 02:32:44,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 02:32:44,690 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-11-23 02:32:44,690 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-11-23 02:32:44,690 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-11-23 02:32:44,691 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-11-23 02:32:44,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:32:44,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:32:44,691 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 02:32:44,691 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 02:32:44,691 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-23 02:32:44,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-23 02:32:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:32:44,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:32:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-23 02:32:44,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2021-11-23 02:32:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:32:44,692 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:32:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-23 02:32:44,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-23 02:32:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2021-11-23 02:32:44,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2021-11-23 02:32:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:32:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:32:44,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:32:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 02:32:44,694 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 02:32:45,975 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:32:45,984 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:32:48,004 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:32:55,354 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:32:55,480 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:32:58,313 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:32:58,314 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:32:58,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:58 BoogieIcfgContainer [2021-11-23 02:32:58,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:32:58,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:32:58,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:32:58,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:32:58,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:32:36" (1/3) ... [2021-11-23 02:32:58,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3241e12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:58, skipping insertion in model container [2021-11-23 02:32:58,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:32:43" (2/3) ... [2021-11-23 02:32:58,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3241e12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:58, skipping insertion in model container [2021-11-23 02:32:58,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:58" (3/3) ... [2021-11-23 02:32:58,333 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-23 02:32:58,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:32:58,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:32:58,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:32:58,438 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=FINITE_AUTOMATA, 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 [2021-11-23 02:32:58,440 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:32:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) [2021-11-23 02:32:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-23 02:32:58,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:58,574 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:58,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:58,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash 316822121, now seen corresponding path program 1 times [2021-11-23 02:32:58,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:58,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059900809] [2021-11-23 02:32:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:58,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-23 02:32:59,778 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:59,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059900809] [2021-11-23 02:32:59,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059900809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:59,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:59,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:59,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771732900] [2021-11-23 02:32:59,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:59,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:59,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:59,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:59,857 INFO L87 Difference]: Start difference. First operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-23 02:33:03,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:06,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:08,591 INFO L93 Difference]: Finished difference Result 6493 states and 9664 transitions. [2021-11-23 02:33:08,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:08,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 222 [2021-11-23 02:33:08,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:08,657 INFO L225 Difference]: With dead ends: 6493 [2021-11-23 02:33:08,657 INFO L226 Difference]: Without dead ends: 4156 [2021-11-23 02:33:08,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:08,687 INFO L933 BasicCegarLoop]: 3586 mSDtfsCounter, 2911 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:08,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2912 Valid, 6441 Invalid, 982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 964 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 02:33:08,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2021-11-23 02:33:09,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4152. [2021-11-23 02:33:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 2442 states have (on average 1.3255528255528255) internal successors, (3237), 2572 states have internal predecessors, (3237), 1421 states have call successors, (1421), 288 states have call predecessors, (1421), 288 states have return successors, (1422), 1390 states have call predecessors, (1422), 1421 states have call successors, (1422) [2021-11-23 02:33:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 6080 transitions. [2021-11-23 02:33:09,177 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 6080 transitions. Word has length 222 [2021-11-23 02:33:09,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:09,182 INFO L470 AbstractCegarLoop]: Abstraction has 4152 states and 6080 transitions. [2021-11-23 02:33:09,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-23 02:33:09,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 6080 transitions. [2021-11-23 02:33:09,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-23 02:33:09,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:09,200 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:09,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:33:09,201 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:09,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:09,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1946518292, now seen corresponding path program 1 times [2021-11-23 02:33:09,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:09,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984756674] [2021-11-23 02:33:09,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:09,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-23 02:33:09,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:09,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984756674] [2021-11-23 02:33:09,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984756674] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:09,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:09,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:09,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325296642] [2021-11-23 02:33:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:09,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:09,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:09,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:09,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:09,988 INFO L87 Difference]: Start difference. First operand 4152 states and 6080 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-23 02:33:14,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:17,609 INFO L93 Difference]: Finished difference Result 11938 states and 17473 transitions. [2021-11-23 02:33:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 223 [2021-11-23 02:33:17,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:17,722 INFO L225 Difference]: With dead ends: 11938 [2021-11-23 02:33:17,722 INFO L226 Difference]: Without dead ends: 7821 [2021-11-23 02:33:17,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:17,770 INFO L933 BasicCegarLoop]: 4033 mSDtfsCounter, 2764 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:17,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 6775 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 02:33:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2021-11-23 02:33:18,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7814. [2021-11-23 02:33:18,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7814 states, 4583 states have (on average 1.3176958324241763) internal successors, (6039), 4838 states have internal predecessors, (6039), 2670 states have call successors, (2670), 560 states have call predecessors, (2670), 560 states have return successors, (2674), 2607 states have call predecessors, (2674), 2670 states have call successors, (2674) [2021-11-23 02:33:18,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 11383 transitions. [2021-11-23 02:33:18,544 INFO L78 Accepts]: Start accepts. Automaton has 7814 states and 11383 transitions. Word has length 223 [2021-11-23 02:33:18,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:18,545 INFO L470 AbstractCegarLoop]: Abstraction has 7814 states and 11383 transitions. [2021-11-23 02:33:18,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-23 02:33:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7814 states and 11383 transitions. [2021-11-23 02:33:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-23 02:33:18,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:18,565 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2021-11-23 02:33:18,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:33:18,566 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:18,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:18,567 INFO L85 PathProgramCache]: Analyzing trace with hash -888132008, now seen corresponding path program 1 times [2021-11-23 02:33:18,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:18,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591712581] [2021-11-23 02:33:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:18,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2021-11-23 02:33:19,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:19,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591712581] [2021-11-23 02:33:19,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591712581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:19,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:19,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:19,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137743116] [2021-11-23 02:33:19,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:19,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:19,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:19,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:19,170 INFO L87 Difference]: Start difference. First operand 7814 states and 11383 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-23 02:33:22,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:24,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:27,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:27,245 INFO L93 Difference]: Finished difference Result 22696 states and 33154 transitions. [2021-11-23 02:33:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 236 [2021-11-23 02:33:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:27,461 INFO L225 Difference]: With dead ends: 22696 [2021-11-23 02:33:27,461 INFO L226 Difference]: Without dead ends: 14917 [2021-11-23 02:33:27,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:27,536 INFO L933 BasicCegarLoop]: 3528 mSDtfsCounter, 2856 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 6283 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:27,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 6283 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-23 02:33:27,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14917 states. [2021-11-23 02:33:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14917 to 14906. [2021-11-23 02:33:28,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14906 states, 8734 states have (on average 1.315548431417449) internal successors, (11490), 9220 states have internal predecessors, (11490), 5074 states have call successors, (5074), 1105 states have call predecessors, (5074), 1097 states have return successors, (5245), 4924 states have call predecessors, (5245), 5074 states have call successors, (5245) [2021-11-23 02:33:28,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14906 states to 14906 states and 21809 transitions. [2021-11-23 02:33:28,906 INFO L78 Accepts]: Start accepts. Automaton has 14906 states and 21809 transitions. Word has length 236 [2021-11-23 02:33:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:28,907 INFO L470 AbstractCegarLoop]: Abstraction has 14906 states and 21809 transitions. [2021-11-23 02:33:28,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-23 02:33:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 14906 states and 21809 transitions. [2021-11-23 02:33:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-23 02:33:28,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:28,922 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:28,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:33:28,923 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:28,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash -882869683, now seen corresponding path program 1 times [2021-11-23 02:33:28,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:28,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203307253] [2021-11-23 02:33:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:28,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2021-11-23 02:33:29,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:29,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203307253] [2021-11-23 02:33:29,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203307253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:29,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:29,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:29,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735871139] [2021-11-23 02:33:29,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:29,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:29,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:29,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:29,346 INFO L87 Difference]: Start difference. First operand 14906 states and 21809 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-23 02:33:33,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:34,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:37,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:37,732 INFO L93 Difference]: Finished difference Result 43667 states and 63848 transitions. [2021-11-23 02:33:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:37,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 247 [2021-11-23 02:33:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:37,980 INFO L225 Difference]: With dead ends: 43667 [2021-11-23 02:33:37,980 INFO L226 Difference]: Without dead ends: 28796 [2021-11-23 02:33:38,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:38,093 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 2878 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6880 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:38,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2880 Valid, 6880 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1083 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2021-11-23 02:33:38,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28796 states. [2021-11-23 02:33:39,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28796 to 28777. [2021-11-23 02:33:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28777 states, 16871 states have (on average 1.312251793017604) internal successors, (22139), 17835 states have internal predecessors, (22139), 9760 states have call successors, (9760), 2161 states have call predecessors, (9760), 2145 states have return successors, (10094), 9455 states have call predecessors, (10094), 9760 states have call successors, (10094) [2021-11-23 02:33:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28777 states to 28777 states and 41993 transitions. [2021-11-23 02:33:40,001 INFO L78 Accepts]: Start accepts. Automaton has 28777 states and 41993 transitions. Word has length 247 [2021-11-23 02:33:40,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:40,003 INFO L470 AbstractCegarLoop]: Abstraction has 28777 states and 41993 transitions. [2021-11-23 02:33:40,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-23 02:33:40,003 INFO L276 IsEmpty]: Start isEmpty. Operand 28777 states and 41993 transitions. [2021-11-23 02:33:40,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-23 02:33:40,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:40,039 INFO L514 BasicCegarLoop]: trace histogram [20, 17, 17, 17, 17, 17, 17, 4, 4, 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] [2021-11-23 02:33:40,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:33:40,039 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:40,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:40,040 INFO L85 PathProgramCache]: Analyzing trace with hash 412680149, now seen corresponding path program 1 times [2021-11-23 02:33:40,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:40,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028779797] [2021-11-23 02:33:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:40,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2021-11-23 02:33:40,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:40,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028779797] [2021-11-23 02:33:40,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028779797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:40,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:40,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:40,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42802156] [2021-11-23 02:33:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:40,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:40,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:40,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:40,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:40,548 INFO L87 Difference]: Start difference. First operand 28777 states and 41993 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-23 02:33:43,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:45,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:47,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:50,904 INFO L93 Difference]: Finished difference Result 60950 states and 88650 transitions. [2021-11-23 02:33:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 262 [2021-11-23 02:33:50,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:51,252 INFO L225 Difference]: With dead ends: 60950 [2021-11-23 02:33:51,253 INFO L226 Difference]: Without dead ends: 32208 [2021-11-23 02:33:51,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:51,391 INFO L933 BasicCegarLoop]: 3566 mSDtfsCounter, 2277 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:51,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2278 Valid, 6323 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 956 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2021-11-23 02:33:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32208 states. [2021-11-23 02:33:53,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32208 to 32165. [2021-11-23 02:33:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32165 states, 18844 states have (on average 1.306675864996816) internal successors, (24623), 19896 states have internal predecessors, (24623), 10834 states have call successors, (10834), 2504 states have call predecessors, (10834), 2486 states have return successors, (11202), 10509 states have call predecessors, (11202), 10834 states have call successors, (11202) [2021-11-23 02:33:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32165 states to 32165 states and 46659 transitions. [2021-11-23 02:33:53,624 INFO L78 Accepts]: Start accepts. Automaton has 32165 states and 46659 transitions. Word has length 262 [2021-11-23 02:33:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:53,625 INFO L470 AbstractCegarLoop]: Abstraction has 32165 states and 46659 transitions. [2021-11-23 02:33:53,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-23 02:33:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 32165 states and 46659 transitions. [2021-11-23 02:33:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-11-23 02:33:53,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:53,649 INFO L514 BasicCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:53,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:33:53,650 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:53,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:53,651 INFO L85 PathProgramCache]: Analyzing trace with hash -399293891, now seen corresponding path program 1 times [2021-11-23 02:33:53,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:53,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66188997] [2021-11-23 02:33:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:53,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2021-11-23 02:33:54,076 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:54,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66188997] [2021-11-23 02:33:54,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66188997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:54,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:54,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:54,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907063391] [2021-11-23 02:33:54,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:54,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:54,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:54,081 INFO L87 Difference]: Start difference. First operand 32165 states and 46659 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-23 02:33:57,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:59,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:02,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:02,614 INFO L93 Difference]: Finished difference Result 75485 states and 109588 transitions. [2021-11-23 02:34:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:02,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 271 [2021-11-23 02:34:02,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:02,934 INFO L225 Difference]: With dead ends: 75485 [2021-11-23 02:34:02,934 INFO L226 Difference]: Without dead ends: 45970 [2021-11-23 02:34:03,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:03,290 INFO L933 BasicCegarLoop]: 5207 mSDtfsCounter, 2817 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 7964 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:03,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2818 Valid, 7964 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1345 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 02:34:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45970 states. [2021-11-23 02:34:05,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45970 to 45956. [2021-11-23 02:34:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45956 states, 26933 states have (on average 1.306055768016931) internal successors, (35176), 28433 states have internal predecessors, (35176), 15460 states have call successors, (15460), 3588 states have call predecessors, (15460), 3562 states have return successors, (15982), 14994 states have call predecessors, (15982), 15460 states have call successors, (15982) [2021-11-23 02:34:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45956 states to 45956 states and 66618 transitions. [2021-11-23 02:34:06,004 INFO L78 Accepts]: Start accepts. Automaton has 45956 states and 66618 transitions. Word has length 271 [2021-11-23 02:34:06,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:06,005 INFO L470 AbstractCegarLoop]: Abstraction has 45956 states and 66618 transitions. [2021-11-23 02:34:06,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-23 02:34:06,006 INFO L276 IsEmpty]: Start isEmpty. Operand 45956 states and 66618 transitions. [2021-11-23 02:34:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-23 02:34:06,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:06,027 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:06,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:34:06,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash -49817962, now seen corresponding path program 1 times [2021-11-23 02:34:06,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:06,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97632661] [2021-11-23 02:34:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:06,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2021-11-23 02:34:06,328 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:06,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97632661] [2021-11-23 02:34:06,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97632661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:06,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:06,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:34:06,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153440517] [2021-11-23 02:34:06,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:06,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:34:06,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:06,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:34:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:06,332 INFO L87 Difference]: Start difference. First operand 45956 states and 66618 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-23 02:34:08,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:10,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:15,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:15,525 INFO L93 Difference]: Finished difference Result 121347 states and 175059 transitions. [2021-11-23 02:34:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:15,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 281 [2021-11-23 02:34:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:16,005 INFO L225 Difference]: With dead ends: 121347 [2021-11-23 02:34:16,006 INFO L226 Difference]: Without dead ends: 75426 [2021-11-23 02:34:16,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:16,242 INFO L933 BasicCegarLoop]: 3573 mSDtfsCounter, 2640 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:16,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2640 Valid, 6303 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 976 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-23 02:34:16,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75426 states. [2021-11-23 02:34:19,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75426 to 75391. [2021-11-23 02:34:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75391 states, 44241 states have (on average 1.2939128862367488) internal successors, (57244), 46601 states have internal predecessors, (57244), 25077 states have call successors, (25077), 6148 states have call predecessors, (25077), 6072 states have return successors, (26013), 24276 states have call predecessors, (26013), 25077 states have call successors, (26013) [2021-11-23 02:34:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75391 states to 75391 states and 108334 transitions. [2021-11-23 02:34:20,074 INFO L78 Accepts]: Start accepts. Automaton has 75391 states and 108334 transitions. Word has length 281 [2021-11-23 02:34:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:20,075 INFO L470 AbstractCegarLoop]: Abstraction has 75391 states and 108334 transitions. [2021-11-23 02:34:20,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-23 02:34:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 75391 states and 108334 transitions. [2021-11-23 02:34:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-23 02:34:20,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:20,107 INFO L514 BasicCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 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] [2021-11-23 02:34:20,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:34:20,107 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:20,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash -55083158, now seen corresponding path program 1 times [2021-11-23 02:34:20,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:20,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583126753] [2021-11-23 02:34:20,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:20,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2021-11-23 02:34:20,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:20,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583126753] [2021-11-23 02:34:20,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583126753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:20,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:20,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:34:20,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622630638] [2021-11-23 02:34:20,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:20,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:34:20,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:20,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:34:20,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:20,482 INFO L87 Difference]: Start difference. First operand 75391 states and 108334 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-23 02:34:23,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:31,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:31,176 INFO L93 Difference]: Finished difference Result 185972 states and 267404 transitions. [2021-11-23 02:34:31,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:31,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 302 [2021-11-23 02:34:31,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:31,830 INFO L225 Difference]: With dead ends: 185972 [2021-11-23 02:34:31,830 INFO L226 Difference]: Without dead ends: 110720 [2021-11-23 02:34:32,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:32,105 INFO L933 BasicCegarLoop]: 5277 mSDtfsCounter, 2883 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:32,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2885 Valid, 8048 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1345 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-23 02:34:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110720 states. [2021-11-23 02:34:37,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110720 to 110665. [2021-11-23 02:34:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110665 states, 64968 states have (on average 1.293329023519271) internal successors, (84025), 68474 states have internal predecessors, (84025), 36779 states have call successors, (36779), 9029 states have call predecessors, (36779), 8917 states have return successors, (38168), 35578 states have call predecessors, (38168), 36779 states have call successors, (38168) [2021-11-23 02:34:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110665 states to 110665 states and 158972 transitions. [2021-11-23 02:34:38,223 INFO L78 Accepts]: Start accepts. Automaton has 110665 states and 158972 transitions. Word has length 302 [2021-11-23 02:34:38,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:38,224 INFO L470 AbstractCegarLoop]: Abstraction has 110665 states and 158972 transitions. [2021-11-23 02:34:38,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-23 02:34:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 110665 states and 158972 transitions. [2021-11-23 02:34:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-23 02:34:38,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:38,270 INFO L514 BasicCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:38,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:34:38,270 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:38,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1843179172, now seen corresponding path program 1 times [2021-11-23 02:34:38,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:38,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596342647] [2021-11-23 02:34:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:38,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1502 trivial. 0 not checked. [2021-11-23 02:34:40,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:40,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596342647] [2021-11-23 02:34:40,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596342647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:40,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:40,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:34:40,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120565850] [2021-11-23 02:34:40,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:40,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:34:40,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:40,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:34:40,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:34:40,094 INFO L87 Difference]: Start difference. First operand 110665 states and 158972 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-23 02:34:42,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:44,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:46,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:48,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:53,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:55,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:04,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:06,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:08,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:10,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:12,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:14,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:16,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:21,851 INFO L93 Difference]: Finished difference Result 137952 states and 197358 transitions. [2021-11-23 02:35:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:35:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 333 [2021-11-23 02:35:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:22,645 INFO L225 Difference]: With dead ends: 137952 [2021-11-23 02:35:22,646 INFO L226 Difference]: Without dead ends: 137950 [2021-11-23 02:35:22,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:35:22,707 INFO L933 BasicCegarLoop]: 3133 mSDtfsCounter, 1540 mSDsluCounter, 13217 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 14545 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:22,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 14545 Invalid, 3128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 3111 Invalid, 10 Unknown, 0 Unchecked, 36.5s Time] [2021-11-23 02:35:22,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137950 states. [2021-11-23 02:35:29,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137950 to 137695. [2021-11-23 02:35:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137695 states, 81937 states have (on average 1.2922245139558441) internal successors, (105881), 86083 states have internal predecessors, (105881), 44302 states have call successors, (44302), 11953 states have call predecessors, (44302), 11455 states have return successors, (46771), 42268 states have call predecessors, (46771), 44302 states have call successors, (46771) [2021-11-23 02:35:31,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137695 states to 137695 states and 196954 transitions. [2021-11-23 02:35:31,162 INFO L78 Accepts]: Start accepts. Automaton has 137695 states and 196954 transitions. Word has length 333 [2021-11-23 02:35:31,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:31,177 INFO L470 AbstractCegarLoop]: Abstraction has 137695 states and 196954 transitions. [2021-11-23 02:35:31,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-23 02:35:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 137695 states and 196954 transitions. [2021-11-23 02:35:31,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2021-11-23 02:35:31,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:31,341 INFO L514 BasicCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:31,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:35:31,342 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:31,343 INFO L85 PathProgramCache]: Analyzing trace with hash 137369220, now seen corresponding path program 1 times [2021-11-23 02:35:31,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:31,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027371643] [2021-11-23 02:35:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:31,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2021-11-23 02:35:31,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:35:31,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027371643] [2021-11-23 02:35:31,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027371643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:31,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:31,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:35:31,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986165682] [2021-11-23 02:35:31,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:31,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:35:31,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:35:31,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:35:31,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:31,905 INFO L87 Difference]: Start difference. First operand 137695 states and 196954 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-23 02:35:34,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:36,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []