./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI --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 811f76e6dcf7867c41caea68fec389c0ca46124bb64dc4727c646cbcbde9e73c --- 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-5e519f3 [2022-11-03 03:27:45,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:27:45,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:27:45,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:27:45,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:27:45,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:27:45,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:27:45,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:27:45,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:27:45,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:27:45,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:27:45,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:27:45,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:27:45,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:27:45,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:27:45,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:27:45,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:27:45,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:27:45,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:27:45,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:27:45,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:27:45,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:27:45,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:27:45,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:27:45,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:27:45,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:27:45,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:27:45,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:27:45,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:27:45,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:27:45,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:27:45,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:27:45,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:27:45,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:27:45,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:27:45,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:27:45,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:27:45,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:27:45,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:27:45,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:27:45,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:27:45,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:27:45,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:27:45,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:27:45,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:27:45,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:27:45,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:27:45,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:27:45,211 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:27:45,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:27:45,212 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:27:45,212 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:27:45,213 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:27:45,213 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:27:45,213 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:27:45,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:27:45,214 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:27:45,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:27:45,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:27:45,214 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:27:45,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:27:45,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:27:45,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:27:45,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:27:45,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:27:45,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:27:45,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:27:45,230 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:27:45,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:27:45,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:27:45,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:27:45,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:27:45,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:27:45,232 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:27:45,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:27:45,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:27:45,233 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:27:45,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:27:45,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:27:45,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:27:45,234 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_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811f76e6dcf7867c41caea68fec389c0ca46124bb64dc4727c646cbcbde9e73c [2022-11-03 03:27:45,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:27:45,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:27:45,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:27:45,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:27:45,543 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:27:45,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-03 03:27:45,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/data/91ba30743/f260fb949fdf417eb936e1af9180b548/FLAG5e1425e01 [2022-11-03 03:27:46,774 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:27:46,775 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-03 03:27:46,848 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/data/91ba30743/f260fb949fdf417eb936e1af9180b548/FLAG5e1425e01 [2022-11-03 03:27:46,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/data/91ba30743/f260fb949fdf417eb936e1af9180b548 [2022-11-03 03:27:46,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:27:46,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:27:46,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:27:46,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:27:46,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:27:46,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:27:46" (1/1) ... [2022-11-03 03:27:46,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6a8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:46, skipping insertion in model container [2022-11-03 03:27:46,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:27:46" (1/1) ... [2022-11-03 03:27:46,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:27:47,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:27:54,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[882034,882047] [2022-11-03 03:27:54,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:27:54,625 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:27:55,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[882034,882047] [2022-11-03 03:27:55,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:27:56,006 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:27:56,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56 WrapperNode [2022-11-03 03:27:56,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:27:56,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:27:56,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:27:56,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:27:56,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:56,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:57,761 INFO L138 Inliner]: procedures = 564, calls = 10746, calls flagged for inlining = 343, calls inlined = 337, statements flattened = 25783 [2022-11-03 03:27:57,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:27:57,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:27:57,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:27:57,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:27:57,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:57,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:58,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:58,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:59,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:59,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:59,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:59,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:59,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:27:59,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:27:59,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:27:59,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:27:59,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (1/1) ... [2022-11-03 03:27:59,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:27:59,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:27:59,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:27:59,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffb8c553-7eae-4647-803d-5e23ecaf611b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:27:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2022-11-03 03:27:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2022-11-03 03:27:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2022-11-03 03:27:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2022-11-03 03:27:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2022-11-03 03:27:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2022-11-03 03:27:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 03:27:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 03:27:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:27:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:27:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2022-11-03 03:27:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2022-11-03 03:27:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2022-11-03 03:27:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2022-11-03 03:27:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-11-03 03:27:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-11-03 03:27:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2022-11-03 03:27:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2022-11-03 03:27:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2022-11-03 03:27:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2022-11-03 03:27:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2022-11-03 03:27:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2022-11-03 03:27:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-11-03 03:27:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-11-03 03:27:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:27:59,529 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:27:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 03:27:59,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-03 03:27:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:27:59,530 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:27:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2022-11-03 03:27:59,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2022-11-03 03:27:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2022-11-03 03:27:59,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2022-11-03 03:27:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2022-11-03 03:27:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2022-11-03 03:27:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2022-11-03 03:27:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2022-11-03 03:27:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 03:27:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-11-03 03:27:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-11-03 03:27:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:27:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:27:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-03 03:27:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2022-11-03 03:27:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-03 03:27:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2022-11-03 03:27:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2022-11-03 03:27:59,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2022-11-03 03:27:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:27:59,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:27:59,536 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:27:59,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:27:59,537 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2022-11-03 03:27:59,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2022-11-03 03:27:59,538 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2022-11-03 03:27:59,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2022-11-03 03:27:59,539 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2022-11-03 03:27:59,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2022-11-03 03:27:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:27:59,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2022-11-03 03:27:59,540 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2022-11-03 03:27:59,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 03:27:59,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 03:27:59,541 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2022-11-03 03:27:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2022-11-03 03:27:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2022-11-03 03:27:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2022-11-03 03:27:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2022-11-03 03:27:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2022-11-03 03:27:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:27:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:27:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-03 03:27:59,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-03 03:27:59,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:27:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2022-11-03 03:27:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2022-11-03 03:27:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:27:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:27:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2022-11-03 03:27:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2022-11-03 03:27:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:27:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:27:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:27:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2022-11-03 03:27:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2022-11-03 03:27:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:27:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2022-11-03 03:27:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2022-11-03 03:27:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:27:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:27:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:27:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:27:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2022-11-03 03:27:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2022-11-03 03:27:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:27:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:27:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-03 03:27:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-03 03:27:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-03 03:27:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-03 03:27:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2022-11-03 03:27:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2022-11-03 03:27:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2022-11-03 03:27:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2022-11-03 03:27:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2022-11-03 03:27:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2022-11-03 03:27:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-03 03:27:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-03 03:27:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2022-11-03 03:27:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2022-11-03 03:27:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2022-11-03 03:27:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2022-11-03 03:27:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2022-11-03 03:27:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2022-11-03 03:27:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-03 03:27:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-03 03:27:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-03 03:27:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-03 03:27:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:27:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:27:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:27:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 03:27:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 03:27:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:27:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:27:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-03 03:27:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-03 03:27:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 03:27:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 03:27:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2022-11-03 03:27:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2022-11-03 03:27:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:27:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:27:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:27:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:27:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:27:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:27:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:27:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2022-11-03 03:27:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2022-11-03 03:27:59,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:27:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:27:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:27:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:27:59,574 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2022-11-03 03:27:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2022-11-03 03:27:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2022-11-03 03:27:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2022-11-03 03:27:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:27:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:27:59,575 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2022-11-03 03:27:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2022-11-03 03:27:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2022-11-03 03:27:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2022-11-03 03:27:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2022-11-03 03:27:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2022-11-03 03:27:59,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2022-11-03 03:27:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2022-11-03 03:27:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2022-11-03 03:27:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2022-11-03 03:27:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2022-11-03 03:27:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2022-11-03 03:27:59,577 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2022-11-03 03:27:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2022-11-03 03:27:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2022-11-03 03:27:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2022-11-03 03:27:59,578 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2022-11-03 03:27:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2022-11-03 03:27:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-03 03:27:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2022-11-03 03:27:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2022-11-03 03:27:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2022-11-03 03:27:59,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:27:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:27:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-03 03:27:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-03 03:27:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2022-11-03 03:27:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2022-11-03 03:27:59,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2022-11-03 03:27:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2022-11-03 03:27:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:27:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:27:59,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:27:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:27:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2022-11-03 03:27:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2022-11-03 03:27:59,583 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2022-11-03 03:27:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2022-11-03 03:27:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 03:27:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 03:27:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-03 03:27:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-03 03:27:59,584 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-03 03:27:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-03 03:27:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2022-11-03 03:27:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2022-11-03 03:27:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2022-11-03 03:27:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2022-11-03 03:27:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-03 03:27:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-03 03:27:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2022-11-03 03:27:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2022-11-03 03:27:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-11-03 03:27:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-11-03 03:27:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-11-03 03:27:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-11-03 03:27:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:27:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:27:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2022-11-03 03:27:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2022-11-03 03:27:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:27:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:27:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2022-11-03 03:27:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2022-11-03 03:27:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2022-11-03 03:27:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2022-11-03 03:27:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 03:27:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 03:27:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2022-11-03 03:27:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2022-11-03 03:27:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2022-11-03 03:27:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2022-11-03 03:27:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2022-11-03 03:27:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2022-11-03 03:27:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2022-11-03 03:27:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2022-11-03 03:27:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2022-11-03 03:27:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2022-11-03 03:27:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:27:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:27:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2022-11-03 03:27:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2022-11-03 03:27:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2022-11-03 03:27:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2022-11-03 03:27:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2022-11-03 03:27:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2022-11-03 03:27:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2022-11-03 03:27:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2022-11-03 03:27:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-03 03:27:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-03 03:27:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:27:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:27:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:27:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-03 03:27:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-03 03:27:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 03:27:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 03:27:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-03 03:27:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2022-11-03 03:27:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:27:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:27:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:27:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:27:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2022-11-03 03:27:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2022-11-03 03:27:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2022-11-03 03:27:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2022-11-03 03:27:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2022-11-03 03:27:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2022-11-03 03:27:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-03 03:27:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2022-11-03 03:27:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2022-11-03 03:27:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2022-11-03 03:27:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-03 03:27:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-03 03:27:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2022-11-03 03:27:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2022-11-03 03:27:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-03 03:27:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-03 03:27:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2022-11-03 03:27:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2022-11-03 03:27:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2022-11-03 03:27:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2022-11-03 03:27:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 03:27:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 03:27:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 03:27:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 03:27:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2022-11-03 03:27:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2022-11-03 03:27:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2022-11-03 03:27:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2022-11-03 03:27:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2022-11-03 03:27:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2022-11-03 03:27:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2022-11-03 03:27:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2022-11-03 03:27:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:27:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2022-11-03 03:27:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2022-11-03 03:27:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:27:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:27:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2022-11-03 03:27:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2022-11-03 03:27:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2022-11-03 03:27:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2022-11-03 03:27:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2022-11-03 03:27:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2022-11-03 03:27:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2022-11-03 03:27:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2022-11-03 03:27:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-03 03:27:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-03 03:27:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2022-11-03 03:27:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2022-11-03 03:27:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2022-11-03 03:27:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2022-11-03 03:27:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-03 03:27:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-03 03:27:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2022-11-03 03:27:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2022-11-03 03:27:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-03 03:27:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-03 03:27:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-03 03:27:59,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-03 03:27:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:27:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:27:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2022-11-03 03:27:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2022-11-03 03:27:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:27:59,610 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:27:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-11-03 03:27:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-11-03 03:27:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2022-11-03 03:27:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2022-11-03 03:27:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2022-11-03 03:27:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2022-11-03 03:27:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 03:27:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 03:27:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:27:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:27:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2022-11-03 03:27:59,612 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2022-11-03 03:27:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:27:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2022-11-03 03:27:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2022-11-03 03:27:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-03 03:27:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2022-11-03 03:27:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:27:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:27:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2022-11-03 03:27:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2022-11-03 03:27:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 03:27:59,614 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 03:28:01,656 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:28:01,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:28:05,992 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:30:18,318 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:30:18,847 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:30:30,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:30:30,242 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-03 03:30:30,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:30 BoogieIcfgContainer [2022-11-03 03:30:30,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:30:30,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:30:30,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:30:30,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:30:30,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:27:46" (1/3) ... [2022-11-03 03:30:30,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ffee0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:30, skipping insertion in model container [2022-11-03 03:30:30,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:27:56" (2/3) ... [2022-11-03 03:30:30,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ffee0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:30, skipping insertion in model container [2022-11-03 03:30:30,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:30" (3/3) ... [2022-11-03 03:30:30,260 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2022-11-03 03:30:30,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:30:30,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:30:30,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:30:30,459 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;@23945369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:30:30,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:30:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 6044 states, 3689 states have (on average 1.371645432366495) internal successors, (5060), 3852 states have internal predecessors, (5060), 2201 states have call successors, (2201), 162 states have call predecessors, (2201), 161 states have return successors, (2191), 2122 states have call predecessors, (2191), 2191 states have call successors, (2191) [2022-11-03 03:30:30,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-03 03:30:30,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:30,514 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2022-11-03 03:30:30,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:30,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:30,521 INFO L85 PathProgramCache]: Analyzing trace with hash 603274280, now seen corresponding path program 1 times [2022-11-03 03:30:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:30,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13338473] [2022-11-03 03:30:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:30,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2022-11-03 03:30:33,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:33,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13338473] [2022-11-03 03:30:33,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13338473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:33,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:33,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:30:33,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787819054] [2022-11-03 03:30:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:33,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:30:33,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:30:33,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:30:33,441 INFO L87 Difference]: Start difference. First operand has 6044 states, 3689 states have (on average 1.371645432366495) internal successors, (5060), 3852 states have internal predecessors, (5060), 2201 states have call successors, (2201), 162 states have call predecessors, (2201), 161 states have return successors, (2191), 2122 states have call predecessors, (2191), 2191 states have call successors, (2191) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-03 03:30:36,635 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 [] [2022-11-03 03:30:40,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:42,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:46,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:48,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:53,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:55,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:57,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:30:59,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:02,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:04,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:05,499 INFO L93 Difference]: Finished difference Result 11402 states and 17606 transitions. [2022-11-03 03:31:05,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:31:05,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 294 [2022-11-03 03:31:05,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:05,589 INFO L225 Difference]: With dead ends: 11402 [2022-11-03 03:31:05,589 INFO L226 Difference]: Without dead ends: 6652 [2022-11-03 03:31:05,629 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 [2022-11-03 03:31:05,632 INFO L413 NwaCegarLoop]: 6687 mSDtfsCounter, 5559 mSDsluCounter, 5916 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 21 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5567 SdHoareTripleChecker+Valid, 12046 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:05,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5567 Valid, 12046 Invalid, 1212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1181 Invalid, 10 Unknown, 0 Unchecked, 31.5s Time] [2022-11-03 03:31:05,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6652 states. [2022-11-03 03:31:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6652 to 6646. [2022-11-03 03:31:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6646 states, 4244 states have (on average 1.3565032987747407) internal successors, (5757), 4374 states have internal predecessors, (5757), 2169 states have call successors, (2169), 233 states have call predecessors, (2169), 232 states have return successors, (2172), 2100 states have call predecessors, (2172), 2166 states have call successors, (2172) [2022-11-03 03:31:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6646 states to 6646 states and 10098 transitions. [2022-11-03 03:31:06,633 INFO L78 Accepts]: Start accepts. Automaton has 6646 states and 10098 transitions. Word has length 294 [2022-11-03 03:31:06,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:06,638 INFO L495 AbstractCegarLoop]: Abstraction has 6646 states and 10098 transitions. [2022-11-03 03:31:06,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-03 03:31:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6646 states and 10098 transitions. [2022-11-03 03:31:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-03 03:31:06,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:06,673 INFO L195 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 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] [2022-11-03 03:31:06,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:31:06,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:06,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:06,674 INFO L85 PathProgramCache]: Analyzing trace with hash 791492900, now seen corresponding path program 1 times [2022-11-03 03:31:06,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:06,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616300820] [2022-11-03 03:31:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:06,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3071 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3071 trivial. 0 not checked. [2022-11-03 03:31:09,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:09,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616300820] [2022-11-03 03:31:09,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616300820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:09,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:09,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:31:09,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539974381] [2022-11-03 03:31:09,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:09,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:31:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:31:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:31:09,801 INFO L87 Difference]: Start difference. First operand 6646 states and 10098 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 03:31:12,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:16,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:19,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:22,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:26,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:29,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:31,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:33,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:35,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:38,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:40,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:43,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:44,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:45,218 INFO L93 Difference]: Finished difference Result 9937 states and 15098 transitions. [2022-11-03 03:31:45,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:31:45,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 338 [2022-11-03 03:31:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:45,292 INFO L225 Difference]: With dead ends: 9937 [2022-11-03 03:31:45,292 INFO L226 Difference]: Without dead ends: 9921 [2022-11-03 03:31:45,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:31:45,301 INFO L413 NwaCegarLoop]: 5878 mSDtfsCounter, 4949 mSDsluCounter, 11566 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 16384 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:45,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 16384 Invalid, 1614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1603 Invalid, 11 Unknown, 0 Unchecked, 35.0s Time] [2022-11-03 03:31:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9921 states. [2022-11-03 03:31:46,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9921 to 9916. [2022-11-03 03:31:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9916 states, 6336 states have (on average 1.3577967171717171) internal successors, (8603), 6533 states have internal predecessors, (8603), 3231 states have call successors, (3231), 349 states have call predecessors, (3231), 348 states have return successors, (3236), 3127 states have call predecessors, (3236), 3228 states have call successors, (3236) [2022-11-03 03:31:46,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9916 states to 9916 states and 15070 transitions. [2022-11-03 03:31:46,249 INFO L78 Accepts]: Start accepts. Automaton has 9916 states and 15070 transitions. Word has length 338 [2022-11-03 03:31:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:46,251 INFO L495 AbstractCegarLoop]: Abstraction has 9916 states and 15070 transitions. [2022-11-03 03:31:46,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-03 03:31:46,252 INFO L276 IsEmpty]: Start isEmpty. Operand 9916 states and 15070 transitions. [2022-11-03 03:31:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-11-03 03:31:46,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:46,277 INFO L195 NwaCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:46,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:31:46,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:46,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:46,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2130948688, now seen corresponding path program 1 times [2022-11-03 03:31:46,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:46,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428086548] [2022-11-03 03:31:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:46,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2939 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2936 trivial. 0 not checked. [2022-11-03 03:31:51,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:51,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428086548] [2022-11-03 03:31:51,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428086548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:31:51,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:31:51,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:31:51,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918277155] [2022-11-03 03:31:51,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:31:51,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:31:51,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:51,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:31:51,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:31:51,630 INFO L87 Difference]: Start difference. First operand 9916 states and 15070 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-03 03:31:54,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:31:57,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:01,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:04,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:07,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:09,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:12,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:14,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:16,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:18,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:20,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:21,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:21,092 INFO L93 Difference]: Finished difference Result 23012 states and 34896 transitions. [2022-11-03 03:32:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:21,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 361 [2022-11-03 03:32:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:21,188 INFO L225 Difference]: With dead ends: 23012 [2022-11-03 03:32:21,188 INFO L226 Difference]: Without dead ends: 13151 [2022-11-03 03:32:21,230 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 [2022-11-03 03:32:21,233 INFO L413 NwaCegarLoop]: 5491 mSDtfsCounter, 3233 mSDsluCounter, 5083 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 10096 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:21,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 10096 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1168 Invalid, 8 Unknown, 0 Unchecked, 28.9s Time] [2022-11-03 03:32:21,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13151 states. [2022-11-03 03:32:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13151 to 13138. [2022-11-03 03:32:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13138 states, 8338 states have (on average 1.349604221635884) internal successors, (11253), 8615 states have internal predecessors, (11253), 4299 states have call successors, (4299), 501 states have call predecessors, (4299), 500 states have return successors, (4305), 4153 states have call predecessors, (4305), 4296 states have call successors, (4305) [2022-11-03 03:32:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13138 states to 13138 states and 19857 transitions. [2022-11-03 03:32:22,450 INFO L78 Accepts]: Start accepts. Automaton has 13138 states and 19857 transitions. Word has length 361 [2022-11-03 03:32:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:22,455 INFO L495 AbstractCegarLoop]: Abstraction has 13138 states and 19857 transitions. [2022-11-03 03:32:22,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-03 03:32:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 13138 states and 19857 transitions. [2022-11-03 03:32:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-11-03 03:32:22,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:22,497 INFO L195 NwaCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 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] [2022-11-03 03:32:22,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:32:22,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1994095686, now seen corresponding path program 1 times [2022-11-03 03:32:22,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:22,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687981048] [2022-11-03 03:32:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:22,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3272 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2022-11-03 03:32:25,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:25,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687981048] [2022-11-03 03:32:25,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687981048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:25,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:25,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:32:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225279259] [2022-11-03 03:32:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:25,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:32:25,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:25,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:32:25,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:32:25,967 INFO L87 Difference]: Start difference. First operand 13138 states and 19857 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 03:32:29,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:33,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:36,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:38,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:41,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:43,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:45,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:47,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:52,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:32:54,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:54,605 INFO L93 Difference]: Finished difference Result 28440 states and 42977 transitions. [2022-11-03 03:32:54,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:32:54,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2022-11-03 03:32:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:54,702 INFO L225 Difference]: With dead ends: 28440 [2022-11-03 03:32:54,703 INFO L226 Difference]: Without dead ends: 17466 [2022-11-03 03:32:54,779 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 [2022-11-03 03:32:54,785 INFO L413 NwaCegarLoop]: 7630 mSDtfsCounter, 3233 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 12233 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:54,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 12233 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1470 Invalid, 8 Unknown, 0 Unchecked, 28.1s Time] [2022-11-03 03:32:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17466 states. [2022-11-03 03:32:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17466 to 17453. [2022-11-03 03:32:56,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17453 states, 11054 states have (on average 1.3477474217477836) internal successors, (14898), 11430 states have internal predecessors, (14898), 5719 states have call successors, (5719), 680 states have call predecessors, (5719), 679 states have return successors, (5729), 5520 states have call predecessors, (5729), 5716 states have call successors, (5729) [2022-11-03 03:32:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17453 states to 17453 states and 26346 transitions. [2022-11-03 03:32:56,278 INFO L78 Accepts]: Start accepts. Automaton has 17453 states and 26346 transitions. Word has length 420 [2022-11-03 03:32:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:56,280 INFO L495 AbstractCegarLoop]: Abstraction has 17453 states and 26346 transitions. [2022-11-03 03:32:56,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 03:32:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 17453 states and 26346 transitions. [2022-11-03 03:32:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2022-11-03 03:32:56,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:56,338 INFO L195 NwaCegarLoop]: trace histogram [35, 27, 27, 27, 27, 27, 27, 8, 8, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:56,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:32:56,339 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:56,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1157203693, now seen corresponding path program 1 times [2022-11-03 03:32:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:56,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559019503] [2022-11-03 03:32:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:56,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3434 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3395 trivial. 0 not checked. [2022-11-03 03:33:01,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559019503] [2022-11-03 03:33:01,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559019503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:01,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:01,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:33:01,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5593663] [2022-11-03 03:33:01,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:01,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:33:01,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:01,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:33:01,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:33:01,589 INFO L87 Difference]: Start difference. First operand 17453 states and 26346 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 03:33:04,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:07,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:14,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:18,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:20,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:24,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:27,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:29,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:32,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:35,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:37,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:33:42,437 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 [] [2022-11-03 03:33:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:42,691 INFO L93 Difference]: Finished difference Result 40566 states and 61189 transitions. [2022-11-03 03:33:42,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:33:42,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 444 [2022-11-03 03:33:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:42,811 INFO L225 Difference]: With dead ends: 40566 [2022-11-03 03:33:42,812 INFO L226 Difference]: Without dead ends: 25277 [2022-11-03 03:33:42,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:33:42,864 INFO L413 NwaCegarLoop]: 9639 mSDtfsCounter, 6186 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 757 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6193 SdHoareTripleChecker+Valid, 15712 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:42,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6193 Valid, 15712 Invalid, 4127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [757 Valid, 3361 Invalid, 9 Unknown, 0 Unchecked, 40.2s Time] [2022-11-03 03:33:42,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25277 states. [2022-11-03 03:33:44,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25277 to 25258. [2022-11-03 03:33:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25258 states, 15912 states have (on average 1.3445827048768226) internal successors, (21395), 16481 states have internal predecessors, (21395), 8333 states have call successors, (8333), 1013 states have call predecessors, (8333), 1012 states have return successors, (8353), 8031 states have call predecessors, (8353), 8330 states have call successors, (8353) [2022-11-03 03:33:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25258 states to 25258 states and 38081 transitions. [2022-11-03 03:33:45,029 INFO L78 Accepts]: Start accepts. Automaton has 25258 states and 38081 transitions. Word has length 444 [2022-11-03 03:33:45,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:45,031 INFO L495 AbstractCegarLoop]: Abstraction has 25258 states and 38081 transitions. [2022-11-03 03:33:45,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 03:33:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 25258 states and 38081 transitions. [2022-11-03 03:33:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-03 03:33:45,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:45,112 INFO L195 NwaCegarLoop]: trace histogram [37, 27, 27, 27, 27, 27, 27, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:33:45,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:33:45,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash 771904481, now seen corresponding path program 1 times [2022-11-03 03:33:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:45,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752885992] [2022-11-03 03:33:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:45,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:50,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 3602 trivial. 0 not checked. [2022-11-03 03:33:50,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:33:50,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752885992] [2022-11-03 03:33:50,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752885992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:50,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:33:50,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:33:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910159792] [2022-11-03 03:33:50,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:50,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:33:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:33:50,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:33:50,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:33:50,724 INFO L87 Difference]: Start difference. First operand 25258 states and 38081 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-03 03:33:53,648 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 [] [2022-11-03 03:33:56,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:01,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:03,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:06,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:08,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:11,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:12,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:15,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:17,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:18,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:34:18,919 INFO L93 Difference]: Finished difference Result 71020 states and 107117 transitions. [2022-11-03 03:34:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:34:18,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 480 [2022-11-03 03:34:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:34:19,168 INFO L225 Difference]: With dead ends: 71020 [2022-11-03 03:34:19,169 INFO L226 Difference]: Without dead ends: 47926 [2022-11-03 03:34:19,254 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 [2022-11-03 03:34:19,255 INFO L413 NwaCegarLoop]: 7901 mSDtfsCounter, 4913 mSDsluCounter, 5199 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4919 SdHoareTripleChecker+Valid, 12592 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:34:19,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4919 Valid, 12592 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1343 Invalid, 8 Unknown, 0 Unchecked, 26.7s Time] [2022-11-03 03:34:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47926 states. [2022-11-03 03:34:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47926 to 47901. [2022-11-03 03:34:22,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47901 states, 30203 states have (on average 1.344833294705824) internal successors, (40618), 31270 states have internal predecessors, (40618), 15788 states have call successors, (15788), 1910 states have call predecessors, (15788), 1909 states have return successors, (15836), 15230 states have call predecessors, (15836), 15785 states have call successors, (15836) [2022-11-03 03:34:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47901 states to 47901 states and 72242 transitions. [2022-11-03 03:34:22,753 INFO L78 Accepts]: Start accepts. Automaton has 47901 states and 72242 transitions. Word has length 480 [2022-11-03 03:34:22,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:34:22,754 INFO L495 AbstractCegarLoop]: Abstraction has 47901 states and 72242 transitions. [2022-11-03 03:34:22,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-03 03:34:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 47901 states and 72242 transitions. [2022-11-03 03:34:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-11-03 03:34:23,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:34:23,287 INFO L195 NwaCegarLoop]: trace histogram [38, 27, 27, 27, 27, 27, 27, 10, 10, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:34:23,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:34:23,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:34:23,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:34:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash 96059264, now seen corresponding path program 1 times [2022-11-03 03:34:23,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:34:23,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473339971] [2022-11-03 03:34:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:34:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:34:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:34:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3736 trivial. 0 not checked. [2022-11-03 03:34:28,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:34:28,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473339971] [2022-11-03 03:34:28,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473339971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:34:28,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:34:28,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:34:28,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440688251] [2022-11-03 03:34:28,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:34:28,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:34:28,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:34:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:34:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:34:28,293 INFO L87 Difference]: Start difference. First operand 47901 states and 72242 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 03:34:31,285 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 [] [2022-11-03 03:34:36,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:39,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:42,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:46,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:47,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:48,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:50,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:51,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:53,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:55,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:34:57,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:00,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:01,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:01,972 INFO L93 Difference]: Finished difference Result 104846 states and 158139 transitions. [2022-11-03 03:35:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:35:01,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 495 [2022-11-03 03:35:01,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:02,274 INFO L225 Difference]: With dead ends: 104846 [2022-11-03 03:35:02,275 INFO L226 Difference]: Without dead ends: 59109 [2022-11-03 03:35:02,428 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 [2022-11-03 03:35:02,430 INFO L413 NwaCegarLoop]: 9113 mSDtfsCounter, 4873 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 13804 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:02,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4879 Valid, 13804 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1527 Invalid, 7 Unknown, 0 Unchecked, 31.7s Time] [2022-11-03 03:35:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59109 states. [2022-11-03 03:35:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59109 to 59086. [2022-11-03 03:35:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59086 states, 37268 states have (on average 1.3447729955994419) internal successors, (50117), 38577 states have internal predecessors, (50117), 19463 states have call successors, (19463), 2353 states have call predecessors, (19463), 2354 states have return successors, (19528), 18784 states have call predecessors, (19528), 19460 states have call successors, (19528) [2022-11-03 03:35:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59086 states to 59086 states and 89108 transitions. [2022-11-03 03:35:06,676 INFO L78 Accepts]: Start accepts. Automaton has 59086 states and 89108 transitions. Word has length 495 [2022-11-03 03:35:06,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:06,677 INFO L495 AbstractCegarLoop]: Abstraction has 59086 states and 89108 transitions. [2022-11-03 03:35:06,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 03:35:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 59086 states and 89108 transitions. [2022-11-03 03:35:06,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-11-03 03:35:06,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:06,792 INFO L195 NwaCegarLoop]: trace histogram [38, 27, 27, 27, 27, 27, 27, 10, 10, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:35:06,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:35:06,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:06,793 INFO L85 PathProgramCache]: Analyzing trace with hash 427450786, now seen corresponding path program 1 times [2022-11-03 03:35:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:06,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057596602] [2022-11-03 03:35:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:06,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3759 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 3704 trivial. 0 not checked. [2022-11-03 03:35:11,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:11,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057596602] [2022-11-03 03:35:11,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057596602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:11,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:11,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:11,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711629877] [2022-11-03 03:35:11,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:11,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:11,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:11,754 INFO L87 Difference]: Start difference. First operand 59086 states and 89108 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 03:35:14,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:17,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:22,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:24,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:27,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:29,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:32,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:34,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:35,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:37,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:39,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:41,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:43,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:46,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:35:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:48,145 INFO L93 Difference]: Finished difference Result 100481 states and 151571 transitions. [2022-11-03 03:35:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:35:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 494 [2022-11-03 03:35:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:48,728 INFO L225 Difference]: With dead ends: 100481 [2022-11-03 03:35:48,735 INFO L226 Difference]: Without dead ends: 68342 [2022-11-03 03:35:48,869 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 [2022-11-03 03:35:48,870 INFO L413 NwaCegarLoop]: 9188 mSDtfsCounter, 4927 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4933 SdHoareTripleChecker+Valid, 13879 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:48,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4933 Valid, 13879 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1550 Invalid, 8 Unknown, 0 Unchecked, 34.3s Time] [2022-11-03 03:35:48,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68342 states. [2022-11-03 03:35:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68342 to 68329. [2022-11-03 03:35:53,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68329 states, 43098 states have (on average 1.3450044085572417) internal successors, (57967), 44609 states have internal predecessors, (57967), 22509 states have call successors, (22509), 2720 states have call predecessors, (22509), 2721 states have return successors, (22586), 21726 states have call predecessors, (22586), 22506 states have call successors, (22586) [2022-11-03 03:35:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68329 states to 68329 states and 103062 transitions. [2022-11-03 03:35:53,294 INFO L78 Accepts]: Start accepts. Automaton has 68329 states and 103062 transitions. Word has length 494 [2022-11-03 03:35:53,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:53,296 INFO L495 AbstractCegarLoop]: Abstraction has 68329 states and 103062 transitions. [2022-11-03 03:35:53,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-03 03:35:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 68329 states and 103062 transitions. [2022-11-03 03:35:53,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-11-03 03:35:53,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:53,701 INFO L195 NwaCegarLoop]: trace histogram [39, 27, 27, 27, 27, 27, 27, 11, 11, 8, 8, 8, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:35:53,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:35:53,702 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:53,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:53,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1865075553, now seen corresponding path program 1 times [2022-11-03 03:35:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:53,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157228656] [2022-11-03 03:35:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3871 trivial. 0 not checked. [2022-11-03 03:35:57,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:57,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157228656] [2022-11-03 03:35:57,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157228656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:57,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:57,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:57,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006643305] [2022-11-03 03:35:57,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:57,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:57,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:57,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:57,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:57,349 INFO L87 Difference]: Start difference. First operand 68329 states and 103062 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-03 03:36:00,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:36:03,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:36:07,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []