./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS --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 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:31:38,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:31:38,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:31:38,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:31:38,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:31:38,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:31:38,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:31:38,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:31:38,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:31:38,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:31:38,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:31:38,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:31:38,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:31:38,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:31:38,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:31:38,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:31:38,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:31:38,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:31:38,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:31:38,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:31:38,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:31:38,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:31:38,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:31:38,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:31:38,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:31:38,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:31:38,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:31:38,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:31:38,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:31:38,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:31:38,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:31:38,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:31:38,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:31:38,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:31:38,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:31:38,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:31:38,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:31:38,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:31:38,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:31:38,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:31:38,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:31:38,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:31:38,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:31:38,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:31:38,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:31:38,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:31:38,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:31:38,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:31:38,860 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:31:38,860 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:31:38,860 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:31:38,861 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:31:38,861 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:31:38,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:31:38,861 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:31:38,861 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:31:38,862 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:31:38,862 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:31:38,862 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:31:38,862 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:31:38,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:31:38,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:31:38,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:31:38,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:31:38,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:31:38,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:31:38,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:31:38,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:31:38,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:31:38,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:31:38,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:31:38,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:38,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:31:38,872 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:31:38,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:31:38,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:31:38,873 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:31:38,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:31:38,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:31:38,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:31:38,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375b130c0dbad771cfaef84781fc161e5ae1fb4f9856cbf4d088e8198a97450e [2022-11-19 08:31:39,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:31:39,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:31:39,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:31:39,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:31:39,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:31:39,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-19 08:31:39,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/data/318478cd3/3f6cd428e25c45b58cb80aafd6fcd337/FLAG18e4cb1b2 [2022-11-19 08:31:40,345 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:31:40,346 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-19 08:31:40,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/data/318478cd3/3f6cd428e25c45b58cb80aafd6fcd337/FLAG18e4cb1b2 [2022-11-19 08:31:40,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/data/318478cd3/3f6cd428e25c45b58cb80aafd6fcd337 [2022-11-19 08:31:40,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:31:40,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:31:40,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:40,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:31:40,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:31:40,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:40" (1/1) ... [2022-11-19 08:31:40,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301b376d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:40, skipping insertion in model container [2022-11-19 08:31:40,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:40" (1/1) ... [2022-11-19 08:31:40,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:31:40,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:31:46,370 WARN L234 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_0da69b8c-4232-44de-978a-957e409825ac/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2022-11-19 08:31:46,374 WARN L234 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_0da69b8c-4232-44de-978a-957e409825ac/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2022-11-19 08:31:46,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:46,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:31:46,919 WARN L234 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_0da69b8c-4232-44de-978a-957e409825ac/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466142,466155] [2022-11-19 08:31:46,920 WARN L234 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_0da69b8c-4232-44de-978a-957e409825ac/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i[466287,466300] [2022-11-19 08:31:46,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:47,286 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:31:47,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47 WrapperNode [2022-11-19 08:31:47,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:47,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:47,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:31:47,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:31:47,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,620 INFO L138 Inliner]: procedures = 661, calls = 3062, calls flagged for inlining = 319, calls inlined = 257, statements flattened = 6232 [2022-11-19 08:31:47,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:47,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:31:47,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:31:47,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:31:47,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:47,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:48,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:31:48,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:31:48,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:31:48,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:31:48,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (1/1) ... [2022-11-19 08:31:48,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:48,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:48,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:31:48,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:31:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:31:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:31:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 08:31:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 08:31:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-19 08:31:48,120 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-19 08:31:48,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:31:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:31:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-19 08:31:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-19 08:31:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:31:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:31:48,121 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-19 08:31:48,121 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-19 08:31:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 08:31:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 08:31:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-19 08:31:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-19 08:31:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:31:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:31:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:31:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:31:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-19 08:31:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-19 08:31:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-19 08:31:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-19 08:31:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-19 08:31:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-19 08:31:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 08:31:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 08:31:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:31:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:31:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:31:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:31:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-19 08:31:48,125 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-19 08:31:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:31:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:31:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-11-19 08:31:48,126 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-11-19 08:31:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-19 08:31:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-19 08:31:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:31:48,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:31:48,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:31:48,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:31:48,128 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:31:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:31:48,129 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:31:48,129 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:31:48,130 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 08:31:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:31:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:31:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:31:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:31:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-19 08:31:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-19 08:31:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:31:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 08:31:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 08:31:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-19 08:31:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-19 08:31:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-19 08:31:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-19 08:31:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-19 08:31:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:31:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:31:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-19 08:31:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-19 08:31:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 08:31:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 08:31:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-19 08:31:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-19 08:31:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:31:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-19 08:31:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-19 08:31:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:31:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:31:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:31:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:31:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:31:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:31:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:31:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-11-19 08:31:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-11-19 08:31:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:31:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:31:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:31:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-19 08:31:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-19 08:31:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:31:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:31:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 08:31:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 08:31:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:31:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:31:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:31:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:31:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 08:31:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 08:31:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-19 08:31:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-19 08:31:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 08:31:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 08:31:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:31:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:31:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-19 08:31:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-19 08:31:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-19 08:31:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-19 08:31:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-19 08:31:48,148 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-19 08:31:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:31:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:31:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:31:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:31:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:31:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:31:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:31:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 08:31:48,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 08:31:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-19 08:31:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-19 08:31:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:31:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:31:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:31:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:31:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:31:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:31:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-19 08:31:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-19 08:31:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:31:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:31:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:31:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:31:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-19 08:31:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-19 08:31:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:31:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:31:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 08:31:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 08:31:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:31:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:31:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-19 08:31:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-19 08:31:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:31:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:31:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:31:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:31:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:31:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:31:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:31:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:31:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-19 08:31:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-19 08:31:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-19 08:31:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-19 08:31:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:31:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:31:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 08:31:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 08:31:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 08:31:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 08:31:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-19 08:31:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-19 08:31:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-19 08:31:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-19 08:31:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:31:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:31:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-19 08:31:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-19 08:31:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:31:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-19 08:31:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-19 08:31:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:31:48,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:31:48,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:31:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-11-19 08:31:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-11-19 08:31:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-19 08:31:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-19 08:31:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-19 08:31:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-19 08:31:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-19 08:31:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-19 08:31:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-19 08:31:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-19 08:31:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:31:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:31:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-19 08:31:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-19 08:31:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-11-19 08:31:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-11-19 08:31:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-19 08:31:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-19 08:31:48,168 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-19 08:31:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-19 08:31:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-19 08:31:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-19 08:31:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 08:31:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 08:31:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:31:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:31:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:31:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:31:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:31:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:31:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 08:31:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 08:31:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-19 08:31:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-19 08:31:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-19 08:31:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-19 08:31:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:31:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:31:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:31:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-19 08:31:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-19 08:31:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_112 [2022-11-19 08:31:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_112 [2022-11-19 08:31:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:31:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:31:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:31:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-19 08:31:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-19 08:31:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-19 08:31:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-19 08:31:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-19 08:31:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-19 08:31:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:31:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-19 08:31:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-19 08:31:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:31:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:31:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 08:31:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 08:31:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:31:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:31:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:31:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:31:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-19 08:31:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-19 08:31:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2022-11-19 08:31:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2022-11-19 08:31:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-11-19 08:31:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-11-19 08:31:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_105 [2022-11-19 08:31:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_105 [2022-11-19 08:31:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-19 08:31:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-19 08:31:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-19 08:31:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-19 08:31:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 08:31:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 08:31:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-19 08:31:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-19 08:31:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:31:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:31:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:31:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:31:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-11-19 08:31:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-11-19 08:31:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-19 08:31:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-19 08:31:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-19 08:31:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-19 08:31:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-19 08:31:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-19 08:31:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:31:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:31:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 08:31:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 08:31:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-19 08:31:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-19 08:31:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:31:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:31:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-11-19 08:31:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-11-19 08:31:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:31:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-19 08:31:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-19 08:31:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-19 08:31:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-19 08:31:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-19 08:31:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-19 08:31:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:31:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:31:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_113 [2022-11-19 08:31:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_113 [2022-11-19 08:31:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:31:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:31:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-11-19 08:31:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-11-19 08:31:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:31:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:31:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-19 08:31:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-19 08:31:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-19 08:31:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-19 08:31:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 08:31:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 08:31:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2022-11-19 08:31:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2022-11-19 08:31:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_106 [2022-11-19 08:31:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_106 [2022-11-19 08:31:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 08:31:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 08:31:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-19 08:31:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-19 08:31:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-19 08:31:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-19 08:31:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:31:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:31:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-19 08:31:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-19 08:31:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-19 08:31:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-19 08:31:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-19 08:31:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-19 08:31:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-19 08:31:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-19 08:31:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-19 08:31:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-19 08:31:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:31:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:31:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:31:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-19 08:31:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-19 08:31:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:31:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:31:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-19 08:31:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-19 08:31:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-19 08:31:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-19 08:31:49,284 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:31:49,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:31:50,189 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:31:55,844 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:31:56,127 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:58,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:58,033 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 08:31:58,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:58 BoogieIcfgContainer [2022-11-19 08:31:58,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:58,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:58,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:58,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:58,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:31:40" (1/3) ... [2022-11-19 08:31:58,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce69300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:58, skipping insertion in model container [2022-11-19 08:31:58,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:47" (2/3) ... [2022-11-19 08:31:58,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce69300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:58, skipping insertion in model container [2022-11-19 08:31:58,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:58" (3/3) ... [2022-11-19 08:31:58,052 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-19 08:31:58,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:58,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:31:58,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:58,204 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a094fb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:58,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:31:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 2080 states, 1184 states have (on average 1.3006756756756757) internal successors, (1540), 1233 states have internal predecessors, (1540), 742 states have call successors, (742), 158 states have call predecessors, (742), 157 states have return successors, (733), 717 states have call predecessors, (733), 733 states have call successors, (733) [2022-11-19 08:31:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-19 08:31:58,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:58,273 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:58,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:58,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2122695809, now seen corresponding path program 1 times [2022-11-19 08:31:58,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:58,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166584425] [2022-11-19 08:31:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:58,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-19 08:31:59,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:59,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166584425] [2022-11-19 08:31:59,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166584425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:59,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:59,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:31:59,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491166841] [2022-11-19 08:31:59,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:59,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:31:59,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:31:59,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:31:59,308 INFO L87 Difference]: Start difference. First operand has 2080 states, 1184 states have (on average 1.3006756756756757) internal successors, (1540), 1233 states have internal predecessors, (1540), 742 states have call successors, (742), 158 states have call predecessors, (742), 157 states have return successors, (733), 717 states have call predecessors, (733), 733 states have call successors, (733) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 08:32:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:02,929 INFO L93 Difference]: Finished difference Result 5611 states and 8180 transitions. [2022-11-19 08:32:02,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:02,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 234 [2022-11-19 08:32:02,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:02,988 INFO L225 Difference]: With dead ends: 5611 [2022-11-19 08:32:02,988 INFO L226 Difference]: Without dead ends: 3493 [2022-11-19 08:32:03,014 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:32:03,017 INFO L413 NwaCegarLoop]: 3110 mSDtfsCounter, 2171 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 5604 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:03,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 5604 Invalid, 911 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 08:32:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2022-11-19 08:32:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3491. [2022-11-19 08:32:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 1984 states have (on average 1.2857862903225807) internal successors, (2551), 2069 states have internal predecessors, (2551), 1222 states have call successors, (1222), 285 states have call predecessors, (1222), 284 states have return successors, (1223), 1188 states have call predecessors, (1223), 1222 states have call successors, (1223) [2022-11-19 08:32:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4996 transitions. [2022-11-19 08:32:03,366 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4996 transitions. Word has length 234 [2022-11-19 08:32:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:03,370 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 4996 transitions. [2022-11-19 08:32:03,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 08:32:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4996 transitions. [2022-11-19 08:32:03,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1301 [2022-11-19 08:32:03,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:03,460 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 28, 27, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:03,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:32:03,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:03,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 685595226, now seen corresponding path program 1 times [2022-11-19 08:32:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:03,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164387495] [2022-11-19 08:32:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9864 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9859 trivial. 0 not checked. [2022-11-19 08:32:06,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:06,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164387495] [2022-11-19 08:32:06,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164387495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:06,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:06,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:06,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282769502] [2022-11-19 08:32:06,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:06,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:06,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:06,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:06,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:06,082 INFO L87 Difference]: Start difference. First operand 3491 states and 4996 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) [2022-11-19 08:32:09,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:11,761 INFO L93 Difference]: Finished difference Result 9859 states and 14082 transitions. [2022-11-19 08:32:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) Word has length 1300 [2022-11-19 08:32:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:11,818 INFO L225 Difference]: With dead ends: 9859 [2022-11-19 08:32:11,819 INFO L226 Difference]: Without dead ends: 6405 [2022-11-19 08:32:11,842 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:32:11,843 INFO L413 NwaCegarLoop]: 3606 mSDtfsCounter, 2433 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 6054 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:11,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 6054 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1063 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 08:32:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-11-19 08:32:12,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2022-11-19 08:32:12,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 3646 states have (on average 1.281404278661547) internal successors, (4672), 3803 states have internal predecessors, (4672), 2217 states have call successors, (2217), 539 states have call predecessors, (2217), 537 states have return successors, (2219), 2153 states have call predecessors, (2219), 2217 states have call successors, (2219) [2022-11-19 08:32:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9108 transitions. [2022-11-19 08:32:12,225 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9108 transitions. Word has length 1300 [2022-11-19 08:32:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:12,226 INFO L495 AbstractCegarLoop]: Abstraction has 6401 states and 9108 transitions. [2022-11-19 08:32:12,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 3 states have call successors, (152), 2 states have call predecessors, (152), 1 states have return successors, (151), 3 states have call predecessors, (151), 3 states have call successors, (151) [2022-11-19 08:32:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9108 transitions. [2022-11-19 08:32:12,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1348 [2022-11-19 08:32:12,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:12,401 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 30, 28, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:12,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:32:12,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:12,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1129396420, now seen corresponding path program 1 times [2022-11-19 08:32:12,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:12,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623394251] [2022-11-19 08:32:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 10192 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10181 trivial. 0 not checked. [2022-11-19 08:32:14,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:14,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623394251] [2022-11-19 08:32:14,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623394251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:14,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:14,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:14,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921894852] [2022-11-19 08:32:14,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:14,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:14,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:14,377 INFO L87 Difference]: Start difference. First operand 6401 states and 9108 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2022-11-19 08:32:17,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:19,707 INFO L93 Difference]: Finished difference Result 15677 states and 22304 transitions. [2022-11-19 08:32:19,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:19,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) Word has length 1347 [2022-11-19 08:32:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:19,774 INFO L225 Difference]: With dead ends: 15677 [2022-11-19 08:32:19,774 INFO L226 Difference]: Without dead ends: 9313 [2022-11-19 08:32:19,814 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:32:19,815 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 2434 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 6986 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:19,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 6986 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1262 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 08:32:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2022-11-19 08:32:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 9309. [2022-11-19 08:32:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9309 states, 5306 states have (on average 1.2798718431963814) internal successors, (6791), 5535 states have internal predecessors, (6791), 3212 states have call successors, (3212), 793 states have call predecessors, (3212), 790 states have return successors, (3215), 3118 states have call predecessors, (3215), 3212 states have call successors, (3215) [2022-11-19 08:32:20,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9309 states to 9309 states and 13218 transitions. [2022-11-19 08:32:20,541 INFO L78 Accepts]: Start accepts. Automaton has 9309 states and 13218 transitions. Word has length 1347 [2022-11-19 08:32:20,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:20,544 INFO L495 AbstractCegarLoop]: Abstraction has 9309 states and 13218 transitions. [2022-11-19 08:32:20,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 3 states have call successors, (159), 2 states have call predecessors, (159), 1 states have return successors, (158), 3 states have call predecessors, (158), 3 states have call successors, (158) [2022-11-19 08:32:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 9309 states and 13218 transitions. [2022-11-19 08:32:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2022-11-19 08:32:20,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:20,638 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 32, 28, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:20,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:32:20,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:20,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:20,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1567137511, now seen corresponding path program 1 times [2022-11-19 08:32:20,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:20,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181773358] [2022-11-19 08:32:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:20,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:22,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10554 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10540 trivial. 0 not checked. [2022-11-19 08:32:22,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:22,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181773358] [2022-11-19 08:32:22,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181773358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:22,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:22,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:22,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081067616] [2022-11-19 08:32:22,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:22,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:22,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:22,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:22,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:22,735 INFO L87 Difference]: Start difference. First operand 9309 states and 13218 transitions. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2022-11-19 08:32:29,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:29,531 INFO L93 Difference]: Finished difference Result 26643 states and 39215 transitions. [2022-11-19 08:32:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:32:29,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) Word has length 1409 [2022-11-19 08:32:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:29,649 INFO L225 Difference]: With dead ends: 26643 [2022-11-19 08:32:29,649 INFO L226 Difference]: Without dead ends: 17371 [2022-11-19 08:32:29,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:32:29,704 INFO L413 NwaCegarLoop]: 4468 mSDtfsCounter, 1834 mSDsluCounter, 7163 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 11631 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:29,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 11631 Invalid, 2464 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [453 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 08:32:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17371 states. [2022-11-19 08:32:30,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17371 to 9313. [2022-11-19 08:32:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9313 states, 5310 states have (on average 1.2796610169491525) internal successors, (6795), 5539 states have internal predecessors, (6795), 3212 states have call successors, (3212), 793 states have call predecessors, (3212), 790 states have return successors, (3215), 3118 states have call predecessors, (3215), 3212 states have call successors, (3215) [2022-11-19 08:32:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9313 states to 9313 states and 13222 transitions. [2022-11-19 08:32:30,524 INFO L78 Accepts]: Start accepts. Automaton has 9313 states and 13222 transitions. Word has length 1409 [2022-11-19 08:32:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:30,528 INFO L495 AbstractCegarLoop]: Abstraction has 9313 states and 13222 transitions. [2022-11-19 08:32:30,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 2 states have call successors, (164), 2 states have call predecessors, (164), 1 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2022-11-19 08:32:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 9313 states and 13222 transitions. [2022-11-19 08:32:30,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2022-11-19 08:32:30,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:30,579 INFO L195 NwaCegarLoop]: trace histogram [56, 43, 32, 28, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:30,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:32:30,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:30,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1641408054, now seen corresponding path program 1 times [2022-11-19 08:32:30,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:30,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564577440] [2022-11-19 08:32:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:30,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 10554 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10540 trivial. 0 not checked. [2022-11-19 08:32:32,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:32,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564577440] [2022-11-19 08:32:32,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564577440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:32,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:32,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:32,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915614204] [2022-11-19 08:32:32,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:32,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:32,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:32,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:32,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:32,377 INFO L87 Difference]: Start difference. First operand 9313 states and 13222 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) [2022-11-19 08:32:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:34,440 INFO L93 Difference]: Finished difference Result 18581 states and 26375 transitions. [2022-11-19 08:32:34,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:34,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) Word has length 1411 [2022-11-19 08:32:34,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:34,501 INFO L225 Difference]: With dead ends: 18581 [2022-11-19 08:32:34,502 INFO L226 Difference]: Without dead ends: 9305 [2022-11-19 08:32:34,552 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:32:34,553 INFO L413 NwaCegarLoop]: 2473 mSDtfsCounter, 2780 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:34,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2780 Valid, 2473 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:32:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-11-19 08:32:35,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9305. [2022-11-19 08:32:35,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9305 states, 5306 states have (on average 1.2791179796456842) internal successors, (6787), 5531 states have internal predecessors, (6787), 3208 states have call successors, (3208), 793 states have call predecessors, (3208), 790 states have return successors, (3211), 3116 states have call predecessors, (3211), 3208 states have call successors, (3211) [2022-11-19 08:32:35,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 13206 transitions. [2022-11-19 08:32:35,374 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 13206 transitions. Word has length 1411 [2022-11-19 08:32:35,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:35,376 INFO L495 AbstractCegarLoop]: Abstraction has 9305 states and 13206 transitions. [2022-11-19 08:32:35,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 3 states have call successors, (165), 2 states have call predecessors, (165), 1 states have return successors, (164), 3 states have call predecessors, (164), 3 states have call successors, (164) [2022-11-19 08:32:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 13206 transitions. [2022-11-19 08:32:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2022-11-19 08:32:35,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:35,437 INFO L195 NwaCegarLoop]: trace histogram [58, 45, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:35,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:32:35,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:35,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:35,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1880046608, now seen corresponding path program 1 times [2022-11-19 08:32:35,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:35,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934063345] [2022-11-19 08:32:35,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:35,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11196 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 11179 trivial. 0 not checked. [2022-11-19 08:32:36,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:36,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934063345] [2022-11-19 08:32:36,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934063345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:32:36,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668462142] [2022-11-19 08:32:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:36,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:32:36,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:36,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:32:37,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:32:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:40,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 10575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:32:40,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 11196 backedges. 2256 proven. 0 refuted. 0 times theorem prover too weak. 8940 trivial. 0 not checked. [2022-11-19 08:32:40,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:32:40,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668462142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:40,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:32:40,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2022-11-19 08:32:40,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206061031] [2022-11-19 08:32:40,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:40,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:40,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:40,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:40,277 INFO L87 Difference]: Start difference. First operand 9305 states and 13206 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-19 08:32:43,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:44,702 INFO L93 Difference]: Finished difference Result 18615 states and 26934 transitions. [2022-11-19 08:32:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) Word has length 1437 [2022-11-19 08:32:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:44,756 INFO L225 Difference]: With dead ends: 18615 [2022-11-19 08:32:44,756 INFO L226 Difference]: Without dead ends: 9347 [2022-11-19 08:32:44,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1439 GetRequests, 1438 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:44,806 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 4 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4943 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:44,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4943 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-19 08:32:44,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9347 states. [2022-11-19 08:32:45,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9347 to 9311. [2022-11-19 08:32:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9311 states, 5312 states have (on average 1.2788027108433735) internal successors, (6793), 5537 states have internal predecessors, (6793), 3208 states have call successors, (3208), 793 states have call predecessors, (3208), 790 states have return successors, (3211), 3116 states have call predecessors, (3211), 3208 states have call successors, (3211) [2022-11-19 08:32:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9311 states to 9311 states and 13212 transitions. [2022-11-19 08:32:45,623 INFO L78 Accepts]: Start accepts. Automaton has 9311 states and 13212 transitions. Word has length 1437 [2022-11-19 08:32:45,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:45,625 INFO L495 AbstractCegarLoop]: Abstraction has 9311 states and 13212 transitions. [2022-11-19 08:32:45,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-19 08:32:45,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9311 states and 13212 transitions. [2022-11-19 08:32:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2022-11-19 08:32:45,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:45,699 INFO L195 NwaCegarLoop]: trace histogram [58, 47, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:45,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:32:45,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:32:45,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:45,921 INFO L85 PathProgramCache]: Analyzing trace with hash -763123906, now seen corresponding path program 1 times [2022-11-19 08:32:45,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:45,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7418669] [2022-11-19 08:32:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:45,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:47,684 INFO L134 CoverageAnalysis]: Checked inductivity of 11448 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11434 trivial. 0 not checked. [2022-11-19 08:32:47,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:47,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7418669] [2022-11-19 08:32:47,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7418669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:47,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:47,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:47,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376212064] [2022-11-19 08:32:47,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:47,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:47,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:47,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:47,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:47,688 INFO L87 Difference]: Start difference. First operand 9311 states and 13212 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) [2022-11-19 08:32:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:50,766 INFO L93 Difference]: Finished difference Result 18675 states and 26990 transitions. [2022-11-19 08:32:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:50,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) Word has length 1461 [2022-11-19 08:32:50,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:50,817 INFO L225 Difference]: With dead ends: 18675 [2022-11-19 08:32:50,817 INFO L226 Difference]: Without dead ends: 9401 [2022-11-19 08:32:50,865 INFO L412 NwaCegarLoop]: 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 [2022-11-19 08:32:50,866 INFO L413 NwaCegarLoop]: 2499 mSDtfsCounter, 9 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4985 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:50,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4985 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:32:50,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2022-11-19 08:32:51,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9347. [2022-11-19 08:32:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9347 states, 5336 states have (on average 1.2786731634182908) internal successors, (6823), 5561 states have internal predecessors, (6823), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-19 08:32:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9347 states to 9347 states and 13266 transitions. [2022-11-19 08:32:51,623 INFO L78 Accepts]: Start accepts. Automaton has 9347 states and 13266 transitions. Word has length 1461 [2022-11-19 08:32:51,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:51,625 INFO L495 AbstractCegarLoop]: Abstraction has 9347 states and 13266 transitions. [2022-11-19 08:32:51,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 2 states have call successors, (169), 2 states have call predecessors, (169), 2 states have return successors, (168), 2 states have call predecessors, (168), 2 states have call successors, (168) [2022-11-19 08:32:51,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9347 states and 13266 transitions. [2022-11-19 08:32:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1475 [2022-11-19 08:32:51,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:51,671 INFO L195 NwaCegarLoop]: trace histogram [58, 48, 32, 29, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:51,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:32:51,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 166624322, now seen corresponding path program 1 times [2022-11-19 08:32:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:51,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633322670] [2022-11-19 08:32:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 11585 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 11570 trivial. 0 not checked. [2022-11-19 08:32:53,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:53,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633322670] [2022-11-19 08:32:53,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633322670] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:32:53,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716497969] [2022-11-19 08:32:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:53,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:32:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:53,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:32:53,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:32:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:56,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 10726 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:32:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 11585 backedges. 1938 proven. 0 refuted. 0 times theorem prover too weak. 9647 trivial. 0 not checked. [2022-11-19 08:32:56,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:32:56,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716497969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:56,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:32:56,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 08:32:56,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906992424] [2022-11-19 08:32:56,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:56,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:56,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:56,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:56,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:32:56,614 INFO L87 Difference]: Start difference. First operand 9347 states and 13266 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-19 08:32:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:59,693 INFO L93 Difference]: Finished difference Result 18711 states and 26743 transitions. [2022-11-19 08:32:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) Word has length 1474 [2022-11-19 08:32:59,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:59,738 INFO L225 Difference]: With dead ends: 18711 [2022-11-19 08:32:59,738 INFO L226 Difference]: Without dead ends: 9401 [2022-11-19 08:32:59,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1477 GetRequests, 1474 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:32:59,781 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 5 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4950 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:59,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4950 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:32:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2022-11-19 08:33:00,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9353. [2022-11-19 08:33:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9353 states, 5342 states have (on average 1.27836016473231) internal successors, (6829), 5567 states have internal predecessors, (6829), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-19 08:33:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9353 states to 9353 states and 13272 transitions. [2022-11-19 08:33:00,407 INFO L78 Accepts]: Start accepts. Automaton has 9353 states and 13272 transitions. Word has length 1474 [2022-11-19 08:33:00,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:00,409 INFO L495 AbstractCegarLoop]: Abstraction has 9353 states and 13272 transitions. [2022-11-19 08:33:00,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (177), 2 states have call predecessors, (177), 2 states have call successors, (177) [2022-11-19 08:33:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 9353 states and 13272 transitions. [2022-11-19 08:33:00,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1516 [2022-11-19 08:33:00,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:00,451 INFO L195 NwaCegarLoop]: trace histogram [62, 50, 32, 31, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:00,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:33:00,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:00,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:33:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1155854441, now seen corresponding path program 1 times [2022-11-19 08:33:00,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:00,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604698896] [2022-11-19 08:33:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:00,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12744 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 12729 trivial. 0 not checked. [2022-11-19 08:33:02,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:02,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604698896] [2022-11-19 08:33:02,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604698896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:33:02,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673214102] [2022-11-19 08:33:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:02,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:02,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:33:02,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:33:02,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:33:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:05,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 10982 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:33:05,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 12744 backedges. 2039 proven. 0 refuted. 0 times theorem prover too weak. 10705 trivial. 0 not checked. [2022-11-19 08:33:05,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:33:05,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673214102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:05,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:33:05,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 08:33:05,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410087779] [2022-11-19 08:33:05,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:05,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:33:05,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:05,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:33:05,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:05,691 INFO L87 Difference]: Start difference. First operand 9353 states and 13272 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (180), 2 states have call predecessors, (180), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2022-11-19 08:33:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:08,498 INFO L93 Difference]: Finished difference Result 18699 states and 26713 transitions. [2022-11-19 08:33:08,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:33:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (180), 2 states have call predecessors, (180), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) Word has length 1515 [2022-11-19 08:33:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:08,541 INFO L225 Difference]: With dead ends: 18699 [2022-11-19 08:33:08,541 INFO L226 Difference]: Without dead ends: 9383 [2022-11-19 08:33:08,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1518 GetRequests, 1515 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:08,582 INFO L413 NwaCegarLoop]: 2473 mSDtfsCounter, 2 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4942 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:08,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4942 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:33:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2022-11-19 08:33:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 9359. [2022-11-19 08:33:09,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 5348 states have (on average 1.2780478683620045) internal successors, (6835), 5573 states have internal predecessors, (6835), 3220 states have call successors, (3220), 793 states have call predecessors, (3220), 790 states have return successors, (3223), 3128 states have call predecessors, (3223), 3220 states have call successors, (3223) [2022-11-19 08:33:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 13278 transitions. [2022-11-19 08:33:09,374 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 13278 transitions. Word has length 1515 [2022-11-19 08:33:09,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:09,377 INFO L495 AbstractCegarLoop]: Abstraction has 9359 states and 13278 transitions. [2022-11-19 08:33:09,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 2 states have call successors, (180), 2 states have call predecessors, (180), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2022-11-19 08:33:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 13278 transitions. [2022-11-19 08:33:09,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2022-11-19 08:33:09,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:09,419 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 33, 32, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:09,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:33:09,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:09,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:33:09,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:09,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1055938558, now seen corresponding path program 1 times [2022-11-19 08:33:09,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:09,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675980426] [2022-11-19 08:33:09,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:09,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 13991 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 13976 trivial. 0 not checked. [2022-11-19 08:33:11,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:11,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675980426] [2022-11-19 08:33:11,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675980426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:33:11,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963998044] [2022-11-19 08:33:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:11,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:11,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:33:11,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:33:11,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:33:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:14,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 11213 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:33:14,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 13991 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 13781 trivial. 0 not checked. [2022-11-19 08:33:14,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:33:14,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963998044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:14,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:33:14,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 08:33:14,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905616579] [2022-11-19 08:33:14,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:14,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:33:14,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:14,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:33:14,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:14,786 INFO L87 Difference]: Start difference. First operand 9359 states and 13278 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) [2022-11-19 08:33:18,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:18,958 INFO L93 Difference]: Finished difference Result 22637 states and 32123 transitions. [2022-11-19 08:33:18,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:33:18,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) Word has length 1556 [2022-11-19 08:33:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:19,023 INFO L225 Difference]: With dead ends: 22637 [2022-11-19 08:33:19,023 INFO L226 Difference]: Without dead ends: 13315 [2022-11-19 08:33:19,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1559 GetRequests, 1556 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:19,056 INFO L413 NwaCegarLoop]: 4224 mSDtfsCounter, 2185 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:19,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 6561 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 08:33:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13315 states. [2022-11-19 08:33:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13315 to 13311. [2022-11-19 08:33:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 7608 states have (on average 1.2718191377497372) internal successors, (9676), 7937 states have internal predecessors, (9676), 4565 states have call successors, (4565), 1143 states have call predecessors, (4565), 1137 states have return successors, (4571), 4426 states have call predecessors, (4571), 4565 states have call successors, (4571) [2022-11-19 08:33:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 18812 transitions. [2022-11-19 08:33:19,855 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 18812 transitions. Word has length 1556 [2022-11-19 08:33:19,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:19,858 INFO L495 AbstractCegarLoop]: Abstraction has 13311 states and 18812 transitions. [2022-11-19 08:33:19,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 3 states have call successors, (176), 3 states have call predecessors, (176), 3 states have return successors, (175), 3 states have call predecessors, (175), 3 states have call successors, (175) [2022-11-19 08:33:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 18812 transitions. [2022-11-19 08:33:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1577 [2022-11-19 08:33:19,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:19,914 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:19,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:33:20,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:33:20,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:33:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:20,134 INFO L85 PathProgramCache]: Analyzing trace with hash 370685276, now seen corresponding path program 1 times [2022-11-19 08:33:20,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:20,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932877736] [2022-11-19 08:33:20,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:20,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14141 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 14113 trivial. 0 not checked. [2022-11-19 08:33:21,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932877736] [2022-11-19 08:33:21,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932877736] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:33:21,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420682284] [2022-11-19 08:33:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:21,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:21,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:33:21,732 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:33:21,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:33:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:24,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 11274 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:33:24,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14141 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 13783 trivial. 0 not checked. [2022-11-19 08:33:25,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:33:25,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420682284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:25,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:33:25,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 08:33:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446644118] [2022-11-19 08:33:25,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:25,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:33:25,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:25,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:33:25,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:25,043 INFO L87 Difference]: Start difference. First operand 13311 states and 18812 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (179), 3 states have call predecessors, (179), 3 states have return successors, (178), 3 states have call predecessors, (178), 3 states have call successors, (178) [2022-11-19 08:33:27,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:30,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:30,764 INFO L93 Difference]: Finished difference Result 31749 states and 44685 transitions. [2022-11-19 08:33:30,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:33:30,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (179), 3 states have call predecessors, (179), 3 states have return successors, (178), 3 states have call predecessors, (178), 3 states have call successors, (178) Word has length 1576 [2022-11-19 08:33:30,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:30,868 INFO L225 Difference]: With dead ends: 31749 [2022-11-19 08:33:30,868 INFO L226 Difference]: Without dead ends: 18475 [2022-11-19 08:33:30,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1579 GetRequests, 1576 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:30,933 INFO L413 NwaCegarLoop]: 2971 mSDtfsCounter, 2750 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:30,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 4855 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 08:33:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18475 states. [2022-11-19 08:33:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18475 to 18471. [2022-11-19 08:33:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18471 states, 10544 states have (on average 1.2687784522003034) internal successors, (13378), 11025 states have internal predecessors, (13378), 6264 states have call successors, (6264), 1671 states have call predecessors, (6264), 1662 states have return successors, (6273), 6060 states have call predecessors, (6273), 6264 states have call successors, (6273) [2022-11-19 08:33:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18471 states to 18471 states and 25915 transitions. [2022-11-19 08:33:31,789 INFO L78 Accepts]: Start accepts. Automaton has 18471 states and 25915 transitions. Word has length 1576 [2022-11-19 08:33:31,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:31,791 INFO L495 AbstractCegarLoop]: Abstraction has 18471 states and 25915 transitions. [2022-11-19 08:33:31,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 3 states have call successors, (179), 3 states have call predecessors, (179), 3 states have return successors, (178), 3 states have call predecessors, (178), 3 states have call successors, (178) [2022-11-19 08:33:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 18471 states and 25915 transitions. [2022-11-19 08:33:31,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1579 [2022-11-19 08:33:31,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:31,842 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:31,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:33:32,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-19 08:33:32,043 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:33:32,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1687075169, now seen corresponding path program 1 times [2022-11-19 08:33:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:32,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767473571] [2022-11-19 08:33:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:32,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:33,372 INFO L134 CoverageAnalysis]: Checked inductivity of 14143 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 14115 trivial. 0 not checked. [2022-11-19 08:33:33,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:33,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767473571] [2022-11-19 08:33:33,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767473571] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:33:33,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645928838] [2022-11-19 08:33:33,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:33,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:33,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:33:33,375 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:33:33,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:33:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:36,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 11276 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:33:36,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 14143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14143 trivial. 0 not checked. [2022-11-19 08:33:36,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:33:36,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645928838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:36,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:33:36,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 08:33:36,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682540393] [2022-11-19 08:33:36,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:36,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:33:36,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:36,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:33:36,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:36,778 INFO L87 Difference]: Start difference. First operand 18471 states and 25915 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2022-11-19 08:33:39,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:42,197 INFO L93 Difference]: Finished difference Result 41922 states and 59676 transitions. [2022-11-19 08:33:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:33:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 1578 [2022-11-19 08:33:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:42,288 INFO L225 Difference]: With dead ends: 41922 [2022-11-19 08:33:42,288 INFO L226 Difference]: Without dead ends: 23488 [2022-11-19 08:33:42,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1581 GetRequests, 1578 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:42,346 INFO L413 NwaCegarLoop]: 3474 mSDtfsCounter, 709 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 6201 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:42,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 6201 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 08:33:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23488 states. [2022-11-19 08:33:43,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23488 to 18474. [2022-11-19 08:33:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18474 states, 10547 states have (on average 1.268702000568882) internal successors, (13381), 11028 states have internal predecessors, (13381), 6264 states have call successors, (6264), 1671 states have call predecessors, (6264), 1662 states have return successors, (6273), 6060 states have call predecessors, (6273), 6264 states have call successors, (6273) [2022-11-19 08:33:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18474 states to 18474 states and 25918 transitions. [2022-11-19 08:33:43,599 INFO L78 Accepts]: Start accepts. Automaton has 18474 states and 25918 transitions. Word has length 1578 [2022-11-19 08:33:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:43,600 INFO L495 AbstractCegarLoop]: Abstraction has 18474 states and 25918 transitions. [2022-11-19 08:33:43,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 2 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2022-11-19 08:33:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18474 states and 25918 transitions. [2022-11-19 08:33:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2022-11-19 08:33:43,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:43,658 INFO L195 NwaCegarLoop]: trace histogram [66, 52, 34, 33, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 20, 20, 20, 20, 20, 20, 19, 19, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:43,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:33:43,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:43,888 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:33:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:43,888 INFO L85 PathProgramCache]: Analyzing trace with hash 291402474, now seen corresponding path program 1 times [2022-11-19 08:33:43,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:43,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741385912] [2022-11-19 08:33:43,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:43,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 14151 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 14123 trivial. 0 not checked. [2022-11-19 08:33:45,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:45,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741385912] [2022-11-19 08:33:45,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741385912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:33:45,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718116283] [2022-11-19 08:33:45,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:45,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:45,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:33:45,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:33:45,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0da69b8c-4232-44de-978a-957e409825ac/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:33:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:48,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 11310 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:33:48,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 14151 backedges. 3405 proven. 1 refuted. 0 times theorem prover too weak. 10745 trivial. 0 not checked. [2022-11-19 08:33:48,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:33:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 14151 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 14123 trivial. 0 not checked. [2022-11-19 08:33:51,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718116283] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:33:51,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1599280029] [2022-11-19 08:33:51,480 INFO L159 IcfgInterpreter]: Started Sifa with 537 locations of interest [2022-11-19 08:33:51,481 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:33:51,488 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:33:51,494 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:33:51,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs