./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:10:09,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:10:09,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:10:09,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:10:09,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:10:09,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:10:09,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:10:09,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:10:09,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:10:09,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:10:09,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:10:09,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:10:09,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:10:09,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:10:09,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:10:09,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:10:09,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:10:09,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:10:09,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:10:09,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:10:09,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:10:09,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:10:09,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:10:09,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:10:09,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:10:09,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:10:09,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:10:09,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:10:09,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:10:09,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:10:09,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:10:09,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:10:09,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:10:09,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:10:09,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:10:09,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:10:09,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:10:09,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:10:09,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:10:09,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:10:09,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:10:09,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:10:09,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:10:09,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:10:09,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:10:09,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:10:09,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:10:09,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:10:09,244 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:10:09,244 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:10:09,244 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:10:09,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:10:09,245 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:10:09,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:10:09,246 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:10:09,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:10:09,246 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:10:09,247 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:10:09,247 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:10:09,247 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:10:09,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:10:09,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:10:09,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:10:09,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:10:09,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:10:09,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:10:09,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:10:09,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:10:09,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:10:09,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:10:09,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:10:09,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:09,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:10:09,251 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:10:09,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:10:09,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:10:09,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:10:09,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:10:09,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:10:09,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:10:09,254 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_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 [2022-11-19 08:10:09,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:10:09,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:10:09,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:10:09,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:10:09,558 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:10:09,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-19 08:10:09,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/data/780bb3c76/2a583923a4e94fc7841f6393b5206406/FLAG5ca7ba033 [2022-11-19 08:10:10,711 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:10:10,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-19 08:10:10,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/data/780bb3c76/2a583923a4e94fc7841f6393b5206406/FLAG5ca7ba033 [2022-11-19 08:10:11,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/data/780bb3c76/2a583923a4e94fc7841f6393b5206406 [2022-11-19 08:10:11,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:10:11,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:10:11,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:11,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:10:11,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:10:11,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:11" (1/1) ... [2022-11-19 08:10:11,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15220dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:11, skipping insertion in model container [2022-11-19 08:10:11,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:11" (1/1) ... [2022-11-19 08:10:11,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:10:11,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:10:12,377 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2022-11-19 08:10:14,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:14,915 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:10:15,037 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2022-11-19 08:10:15,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:16,105 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:10:16,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16 WrapperNode [2022-11-19 08:10:16,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:16,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:16,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:10:16,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:10:16,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:16,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:16,809 INFO L138 Inliner]: procedures = 488, calls = 4847, calls flagged for inlining = 239, calls inlined = 220, statements flattened = 9733 [2022-11-19 08:10:16,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:16,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:10:16,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:10:16,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:10:16,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:16,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:16,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:16,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:17,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:17,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:17,947 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:17,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:18,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:10:18,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:10:18,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:10:18,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:10:18,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (1/1) ... [2022-11-19 08:10:18,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:18,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:18,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:10:18,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_796cd946-966a-4f4f-aaf0-db60b8657b34/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:10:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:10:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:10:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-19 08:10:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-19 08:10:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-19 08:10:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-19 08:10:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-19 08:10:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-19 08:10:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-19 08:10:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-19 08:10:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-19 08:10:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:10:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:10:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2022-11-19 08:10:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2022-11-19 08:10:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-19 08:10:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-19 08:10:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-19 08:10:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-19 08:10:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-19 08:10:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-19 08:10:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-19 08:10:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-19 08:10:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-19 08:10:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-19 08:10:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-19 08:10:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-19 08:10:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-19 08:10:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-19 08:10:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-19 08:10:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-19 08:10:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 08:10:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 08:10:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-19 08:10:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-19 08:10:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-19 08:10:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-19 08:10:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:10:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:10:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-19 08:10:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-19 08:10:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:10:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-19 08:10:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-19 08:10:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-19 08:10:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-19 08:10:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-19 08:10:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-19 08:10:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:10:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-19 08:10:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-19 08:10:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 08:10:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 08:10:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-19 08:10:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-19 08:10:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-19 08:10:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-19 08:10:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:10:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-19 08:10:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-19 08:10:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-19 08:10:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-19 08:10:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-19 08:10:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-19 08:10:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-19 08:10:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-19 08:10:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:10:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:10:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:10:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-19 08:10:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-19 08:10:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 08:10:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 08:10:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-19 08:10:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-19 08:10:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-19 08:10:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-19 08:10:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 08:10:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 08:10:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-19 08:10:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-19 08:10:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-19 08:10:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-19 08:10:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-19 08:10:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-19 08:10:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-19 08:10:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-19 08:10:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-19 08:10:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-19 08:10:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:10:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-19 08:10:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-19 08:10:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:10:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-19 08:10:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-19 08:10:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:10:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:10:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:10:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:10:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-19 08:10:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-19 08:10:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-19 08:10:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-19 08:10:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-19 08:10:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-19 08:10:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-19 08:10:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-19 08:10:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-19 08:10:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-19 08:10:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:10:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:10:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-19 08:10:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-19 08:10:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-19 08:10:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-19 08:10:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-19 08:10:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-19 08:10:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-19 08:10:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-19 08:10:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 08:10:18,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 08:10:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-19 08:10:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-19 08:10:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-19 08:10:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-19 08:10:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-19 08:10:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-19 08:10:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-19 08:10:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-19 08:10:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:10:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:10:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 08:10:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 08:10:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:10:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:10:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:10:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:10:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:10:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:10:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-19 08:10:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-19 08:10:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-19 08:10:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-19 08:10:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-19 08:10:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-19 08:10:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:10:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:10:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-19 08:10:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-19 08:10:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-19 08:10:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-19 08:10:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-19 08:10:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-19 08:10:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-19 08:10:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-19 08:10:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-19 08:10:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-19 08:10:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-19 08:10:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-19 08:10:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:10:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:10:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:10:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:10:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-19 08:10:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-19 08:10:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:10:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:10:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:10:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:10:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-19 08:10:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-19 08:10:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:10:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:10:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-19 08:10:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-19 08:10:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-19 08:10:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-19 08:10:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:10:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:10:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:10:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-19 08:10:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-19 08:10:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:10:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-19 08:10:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-19 08:10:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-19 08:10:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-19 08:10:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-19 08:10:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-19 08:10:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-19 08:10:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-19 08:10:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-19 08:10:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-19 08:10:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:10:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 08:10:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 08:10:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-19 08:10:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-19 08:10:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-19 08:10:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-19 08:10:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 08:10:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 08:10:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-19 08:10:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-19 08:10:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:10:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:10:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-19 08:10:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-19 08:10:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-19 08:10:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-19 08:10:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:10:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:10:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-19 08:10:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-19 08:10:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-19 08:10:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-19 08:10:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-19 08:10:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-19 08:10:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-19 08:10:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-19 08:10:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-19 08:10:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-19 08:10:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-19 08:10:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-19 08:10:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 08:10:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 08:10:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-19 08:10:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-19 08:10:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-19 08:10:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-19 08:10:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:10:18,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:10:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-19 08:10:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-19 08:10:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-19 08:10:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-19 08:10:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:10:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-19 08:10:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-19 08:10:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:10:18,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:10:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-19 08:10:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-19 08:10:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-19 08:10:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-19 08:10:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-19 08:10:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-19 08:10:18,212 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-19 08:10:18,212 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-19 08:10:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-19 08:10:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-19 08:10:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-19 08:10:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-19 08:10:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 08:10:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 08:10:18,213 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-19 08:10:18,213 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-19 08:10:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-19 08:10:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-19 08:10:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-19 08:10:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-19 08:10:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2022-11-19 08:10:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2022-11-19 08:10:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-19 08:10:18,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-19 08:10:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-19 08:10:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-19 08:10:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-19 08:10:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-19 08:10:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:10:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-19 08:10:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-19 08:10:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-19 08:10:18,216 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-19 08:10:19,584 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:10:19,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:10:28,877 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:15:40,426 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:15:43,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:15:43,473 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:15:43,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:15:43 BoogieIcfgContainer [2022-11-19 08:15:43,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:15:43,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:15:43,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:15:43,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:15:43,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:10:11" (1/3) ... [2022-11-19 08:15:43,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e56a660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:15:43, skipping insertion in model container [2022-11-19 08:15:43,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:16" (2/3) ... [2022-11-19 08:15:43,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e56a660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:15:43, skipping insertion in model container [2022-11-19 08:15:43,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:15:43" (3/3) ... [2022-11-19 08:15:43,489 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-19 08:15:43,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:15:43,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:15:43,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:15:43,635 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;@130a1b4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:15:43,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:15:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 2009 states, 1256 states have (on average 1.3710191082802548) internal successors, (1722), 1287 states have internal predecessors, (1722), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) [2022-11-19 08:15:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 08:15:43,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:43,672 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:43,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:15:43,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:43,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1484762808, now seen corresponding path program 1 times [2022-11-19 08:15:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:43,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078122056] [2022-11-19 08:15:43,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:43,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:15:45,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:45,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078122056] [2022-11-19 08:15:45,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078122056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:45,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:45,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:45,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832900000] [2022-11-19 08:15:45,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:45,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:45,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:45,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:45,424 INFO L87 Difference]: Start difference. First operand has 2009 states, 1256 states have (on average 1.3710191082802548) internal successors, (1722), 1287 states have internal predecessors, (1722), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:15:47,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:50,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:54,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:15:56,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:15:59,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:04,159 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 [] [2022-11-19 08:16:06,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:06,326 INFO L93 Difference]: Finished difference Result 5954 states and 8985 transitions. [2022-11-19 08:16:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2022-11-19 08:16:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:06,406 INFO L225 Difference]: With dead ends: 5954 [2022-11-19 08:16:06,406 INFO L226 Difference]: Without dead ends: 3923 [2022-11-19 08:16:06,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:06,435 INFO L413 NwaCegarLoop]: 3244 mSDtfsCounter, 2838 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 5886 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:06,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 5886 Invalid, 606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 600 Invalid, 5 Unknown, 0 Unchecked, 20.4s Time] [2022-11-19 08:16:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2022-11-19 08:16:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3906. [2022-11-19 08:16:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 2464 states have (on average 1.3603896103896105) internal successors, (3352), 2490 states have internal predecessors, (3352), 1190 states have call successors, (1190), 252 states have call predecessors, (1190), 251 states have return successors, (1188), 1179 states have call predecessors, (1188), 1182 states have call successors, (1188) [2022-11-19 08:16:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 5730 transitions. [2022-11-19 08:16:06,844 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 5730 transitions. Word has length 42 [2022-11-19 08:16:06,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:06,846 INFO L495 AbstractCegarLoop]: Abstraction has 3906 states and 5730 transitions. [2022-11-19 08:16:06,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:16:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 5730 transitions. [2022-11-19 08:16:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 08:16:06,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:06,856 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:06,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:16:06,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:06,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2065032127, now seen corresponding path program 1 times [2022-11-19 08:16:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:06,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485810952] [2022-11-19 08:16:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:16:08,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:08,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485810952] [2022-11-19 08:16:08,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485810952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:08,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:08,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:16:08,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735582937] [2022-11-19 08:16:08,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:08,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:08,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:08,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:08,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:08,008 INFO L87 Difference]: Start difference. First operand 3906 states and 5730 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:16:10,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:12,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:16,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:19,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:16:24,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:26,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:29,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:30,098 INFO L93 Difference]: Finished difference Result 11599 states and 17024 transitions. [2022-11-19 08:16:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:30,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2022-11-19 08:16:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:30,160 INFO L225 Difference]: With dead ends: 11599 [2022-11-19 08:16:30,161 INFO L226 Difference]: Without dead ends: 7702 [2022-11-19 08:16:30,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:30,187 INFO L413 NwaCegarLoop]: 3222 mSDtfsCounter, 2787 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 5823 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:30,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 5823 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 605 Invalid, 5 Unknown, 0 Unchecked, 21.7s Time] [2022-11-19 08:16:30,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2022-11-19 08:16:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7696. [2022-11-19 08:16:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7696 states, 4869 states have (on average 1.361675908810844) internal successors, (6630), 4913 states have internal predecessors, (6630), 2328 states have call successors, (2328), 499 states have call predecessors, (2328), 498 states have return successors, (2338), 2315 states have call predecessors, (2338), 2320 states have call successors, (2338) [2022-11-19 08:16:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7696 states to 7696 states and 11296 transitions. [2022-11-19 08:16:30,632 INFO L78 Accepts]: Start accepts. Automaton has 7696 states and 11296 transitions. Word has length 42 [2022-11-19 08:16:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:30,633 INFO L495 AbstractCegarLoop]: Abstraction has 7696 states and 11296 transitions. [2022-11-19 08:16:30,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:16:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7696 states and 11296 transitions. [2022-11-19 08:16:30,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-19 08:16:30,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:30,638 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:30,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:16:30,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:30,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1458469596, now seen corresponding path program 1 times [2022-11-19 08:16:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:30,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468532548] [2022-11-19 08:16:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:31,455 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:16:31,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:31,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468532548] [2022-11-19 08:16:31,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468532548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:31,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:31,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:16:31,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623280508] [2022-11-19 08:16:31,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:31,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:31,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:31,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:31,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:31,458 INFO L87 Difference]: Start difference. First operand 7696 states and 11296 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:16:33,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:36,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:37,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:40,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:42,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:16:47,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:16:50,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:53,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:53,962 INFO L93 Difference]: Finished difference Result 22932 states and 33649 transitions. [2022-11-19 08:16:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:53,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2022-11-19 08:16:53,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:54,089 INFO L225 Difference]: With dead ends: 22932 [2022-11-19 08:16:54,089 INFO L226 Difference]: Without dead ends: 15245 [2022-11-19 08:16:54,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:54,131 INFO L413 NwaCegarLoop]: 3222 mSDtfsCounter, 2779 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 5826 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:54,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 5826 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 4 Unknown, 0 Unchecked, 21.9s Time] [2022-11-19 08:16:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15245 states. [2022-11-19 08:16:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15245 to 15228. [2022-11-19 08:16:54,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15228 states, 9637 states have (on average 1.3616270623638063) internal successors, (13122), 9717 states have internal predecessors, (13122), 4594 states have call successors, (4594), 997 states have call predecessors, (4594), 996 states have return successors, (4626), 4577 states have call predecessors, (4626), 4586 states have call successors, (4626) [2022-11-19 08:16:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15228 states to 15228 states and 22342 transitions. [2022-11-19 08:16:55,046 INFO L78 Accepts]: Start accepts. Automaton has 15228 states and 22342 transitions. Word has length 48 [2022-11-19 08:16:55,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:55,047 INFO L495 AbstractCegarLoop]: Abstraction has 15228 states and 22342 transitions. [2022-11-19 08:16:55,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:16:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 15228 states and 22342 transitions. [2022-11-19 08:16:55,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 08:16:55,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:55,052 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:55,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:16:55,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 947867818, now seen corresponding path program 1 times [2022-11-19 08:16:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:55,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115046267] [2022-11-19 08:16:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:55,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:16:55,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:55,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115046267] [2022-11-19 08:16:55,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115046267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:55,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:55,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:16:55,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718314992] [2022-11-19 08:16:55,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:55,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:55,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:55,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:55,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:55,830 INFO L87 Difference]: Start difference. First operand 15228 states and 22342 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:16:58,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:00,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:05,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:08,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:12,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:15,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:16,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:16,020 INFO L93 Difference]: Finished difference Result 41408 states and 60743 transitions. [2022-11-19 08:17:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:17:16,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2022-11-19 08:17:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:16,153 INFO L225 Difference]: With dead ends: 41408 [2022-11-19 08:17:16,153 INFO L226 Difference]: Without dead ends: 26189 [2022-11-19 08:17:16,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:17:16,211 INFO L413 NwaCegarLoop]: 3478 mSDtfsCounter, 2096 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 6082 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:16,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 6082 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 686 Invalid, 5 Unknown, 0 Unchecked, 19.3s Time] [2022-11-19 08:17:16,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26189 states. [2022-11-19 08:17:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26189 to 26152. [2022-11-19 08:17:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26152 states, 16677 states have (on average 1.3701505066858548) internal successors, (22850), 16789 states have internal predecessors, (22850), 7730 states have call successors, (7730), 1745 states have call predecessors, (7730), 1744 states have return successors, (7786), 7705 states have call predecessors, (7786), 7722 states have call successors, (7786) [2022-11-19 08:17:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26152 states to 26152 states and 38366 transitions. [2022-11-19 08:17:18,016 INFO L78 Accepts]: Start accepts. Automaton has 26152 states and 38366 transitions. Word has length 62 [2022-11-19 08:17:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:18,017 INFO L495 AbstractCegarLoop]: Abstraction has 26152 states and 38366 transitions. [2022-11-19 08:17:18,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:17:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 26152 states and 38366 transitions. [2022-11-19 08:17:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-19 08:17:18,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:18,021 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:18,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:17:18,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:17:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash -875041418, now seen corresponding path program 1 times [2022-11-19 08:17:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:18,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874740801] [2022-11-19 08:17:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:18,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:17:18,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:18,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874740801] [2022-11-19 08:17:18,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874740801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:18,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:18,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:17:18,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826289125] [2022-11-19 08:17:18,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:18,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:17:18,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:18,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:17:18,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:17:18,830 INFO L87 Difference]: Start difference. First operand 26152 states and 38366 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:17:20,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:26,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:29,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:31,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:37,322 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 [] [2022-11-19 08:17:39,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:39,335 INFO L93 Difference]: Finished difference Result 70561 states and 103855 transitions. [2022-11-19 08:17:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:17:39,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-11-19 08:17:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:39,597 INFO L225 Difference]: With dead ends: 70561 [2022-11-19 08:17:39,598 INFO L226 Difference]: Without dead ends: 44418 [2022-11-19 08:17:39,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:17:39,715 INFO L413 NwaCegarLoop]: 3072 mSDtfsCounter, 2382 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 5450 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:39,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 5450 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 579 Invalid, 5 Unknown, 0 Unchecked, 19.0s Time] [2022-11-19 08:17:39,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44418 states. [2022-11-19 08:17:42,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44418 to 44334. [2022-11-19 08:17:42,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44334 states, 28759 states have (on average 1.3864877081956952) internal successors, (39874), 29340 states have internal predecessors, (39874), 12502 states have call successors, (12502), 3220 states have call predecessors, (12502), 3072 states have return successors, (12908), 11909 states have call predecessors, (12908), 12492 states have call successors, (12908) [2022-11-19 08:17:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44334 states to 44334 states and 65284 transitions. [2022-11-19 08:17:42,951 INFO L78 Accepts]: Start accepts. Automaton has 44334 states and 65284 transitions. Word has length 58 [2022-11-19 08:17:42,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:42,952 INFO L495 AbstractCegarLoop]: Abstraction has 44334 states and 65284 transitions. [2022-11-19 08:17:42,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:17:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 44334 states and 65284 transitions. [2022-11-19 08:17:42,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-19 08:17:42,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:42,957 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:42,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:17:42,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:17:42,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1357551993, now seen corresponding path program 1 times [2022-11-19 08:17:42,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:42,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731799789] [2022-11-19 08:17:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:17:43,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:43,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731799789] [2022-11-19 08:17:43,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731799789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:43,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:43,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:17:43,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300661268] [2022-11-19 08:17:43,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:43,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:17:43,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:43,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:17:43,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:17:43,699 INFO L87 Difference]: Start difference. First operand 44334 states and 65284 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:17:45,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:48,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:50,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:53,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:17:55,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:59,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:01,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:07,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:07,077 INFO L93 Difference]: Finished difference Result 132874 states and 195725 transitions. [2022-11-19 08:18:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:07,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2022-11-19 08:18:07,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:07,886 INFO L225 Difference]: With dead ends: 132874 [2022-11-19 08:18:07,886 INFO L226 Difference]: Without dead ends: 88549 [2022-11-19 08:18:08,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:08,121 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 2854 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:08,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2860 Valid, 5824 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 592 Invalid, 6 Unknown, 0 Unchecked, 20.5s Time] [2022-11-19 08:18:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88549 states. [2022-11-19 08:18:12,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88549 to 88488. [2022-11-19 08:18:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88488 states, 57420 states have (on average 1.3867641936607453) internal successors, (79628), 58575 states have internal predecessors, (79628), 24951 states have call successors, (24951), 6413 states have call predecessors, (24951), 6116 states have return successors, (25780), 23771 states have call predecessors, (25780), 24940 states have call successors, (25780) [2022-11-19 08:18:13,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88488 states to 88488 states and 130359 transitions. [2022-11-19 08:18:13,933 INFO L78 Accepts]: Start accepts. Automaton has 88488 states and 130359 transitions. Word has length 59 [2022-11-19 08:18:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:13,934 INFO L495 AbstractCegarLoop]: Abstraction has 88488 states and 130359 transitions. [2022-11-19 08:18:13,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:18:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 88488 states and 130359 transitions. [2022-11-19 08:18:13,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-19 08:18:13,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:13,938 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:13,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:18:13,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:13,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash 864494233, now seen corresponding path program 1 times [2022-11-19 08:18:13,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:13,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086702257] [2022-11-19 08:18:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:13,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:18:15,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:15,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086702257] [2022-11-19 08:18:15,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086702257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:15,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:15,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:18:15,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942893277] [2022-11-19 08:18:15,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:15,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:15,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:15,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:15,115 INFO L87 Difference]: Start difference. First operand 88488 states and 130359 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:18:17,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:19,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:22,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:24,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:18:28,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:30,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:35,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:40,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:41,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:18:41,426 INFO L93 Difference]: Finished difference Result 176949 states and 260689 transitions. [2022-11-19 08:18:41,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:18:41,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-11-19 08:18:41,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:18:42,548 INFO L225 Difference]: With dead ends: 176949 [2022-11-19 08:18:42,548 INFO L226 Difference]: Without dead ends: 176946 [2022-11-19 08:18:42,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:42,610 INFO L413 NwaCegarLoop]: 3224 mSDtfsCounter, 2870 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 5833 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:18:42,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 5833 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 596 Invalid, 5 Unknown, 0 Unchecked, 20.9s Time] [2022-11-19 08:18:42,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176946 states. [2022-11-19 08:18:51,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176946 to 176926. [2022-11-19 08:18:51,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176926 states, 114814 states have (on average 1.3868169387008553) internal successors, (159226), 117118 states have internal predecessors, (159226), 49883 states have call successors, (49883), 12821 states have call predecessors, (49883), 12228 states have return successors, (51556), 47530 states have call predecessors, (51556), 49872 states have call successors, (51556) [2022-11-19 08:18:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176926 states to 176926 states and 260665 transitions. [2022-11-19 08:18:52,981 INFO L78 Accepts]: Start accepts. Automaton has 176926 states and 260665 transitions. Word has length 60 [2022-11-19 08:18:52,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:18:52,982 INFO L495 AbstractCegarLoop]: Abstraction has 176926 states and 260665 transitions. [2022-11-19 08:18:52,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:18:52,982 INFO L276 IsEmpty]: Start isEmpty. Operand 176926 states and 260665 transitions. [2022-11-19 08:18:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 08:18:52,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:18:52,985 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:18:52,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:18:52,985 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:18:52,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:18:52,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1028455370, now seen corresponding path program 1 times [2022-11-19 08:18:52,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:18:52,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019328531] [2022-11-19 08:18:52,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:18:52,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:18:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:18:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 08:18:54,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:18:54,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019328531] [2022-11-19 08:18:54,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019328531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:18:54,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:18:54,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:18:54,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178390158] [2022-11-19 08:18:54,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:18:54,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:18:54,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:18:54,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:18:54,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:18:54,285 INFO L87 Difference]: Start difference. First operand 176926 states and 260665 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:18:56,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:18:59,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:19:02,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:19:05,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []