./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:38:06,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:38:06,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:38:06,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:38:06,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:38:06,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:38:06,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:38:06,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:38:06,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:38:06,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:38:06,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:38:06,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:38:06,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:38:06,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:38:06,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:38:06,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:38:06,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:38:06,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:38:06,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:38:06,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:38:06,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:38:06,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:38:06,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:38:06,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:38:06,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:38:06,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:38:06,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:38:06,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:38:06,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:38:06,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:38:06,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:38:06,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:38:06,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:38:06,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:38:06,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:38:06,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:38:06,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:38:06,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:38:06,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:38:06,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:38:06,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:38:06,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:38:06,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:38:06,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:38:06,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:38:06,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:38:06,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:38:06,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:38:06,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:38:06,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:38:06,254 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:38:06,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:38:06,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:38:06,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:38:06,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:38:06,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:38:06,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:38:06,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:38:06,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:38:06,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:38:06,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:38:06,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:38:06,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:38:06,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:38:06,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:38:06,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:38:06,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:38:06,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:38:06,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:38:06,260 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:38:06,260 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:38:06,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:38:06,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:38:06,262 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_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2021-11-20 06:38:06,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:38:06,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:38:06,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:38:06,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:38:06,621 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:38:06,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 06:38:06,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/data/a74542275/44eb30a36a5e4adb949a76f33feecbda/FLAG2c10dc213 [2021-11-20 06:38:07,799 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:38:07,800 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 06:38:07,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/data/a74542275/44eb30a36a5e4adb949a76f33feecbda/FLAG2c10dc213 [2021-11-20 06:38:08,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/data/a74542275/44eb30a36a5e4adb949a76f33feecbda [2021-11-20 06:38:08,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:38:08,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:38:08,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:38:08,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:38:08,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:38:08,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:38:08" (1/1) ... [2021-11-20 06:38:08,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ecec55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:08, skipping insertion in model container [2021-11-20 06:38:08,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:38:08" (1/1) ... [2021-11-20 06:38:08,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:38:08,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:38:12,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2021-11-20 06:38:12,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:38:12,584 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:38:13,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2021-11-20 06:38:13,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:38:13,505 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:38:13,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13 WrapperNode [2021-11-20 06:38:13,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:38:13,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:38:13,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:38:13,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:38:13,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:13,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:14,473 INFO L137 Inliner]: procedures = 549, calls = 5005, calls flagged for inlining = 246, calls inlined = 225, statements flattened = 9875 [2021-11-20 06:38:14,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:38:14,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:38:14,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:38:14,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:38:14,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:14,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:14,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:14,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:15,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:15,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:15,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:15,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:38:15,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:38:15,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:38:15,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:38:15,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (1/1) ... [2021-11-20 06:38:15,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:38:15,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:38:15,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:38:15,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e79c3d0-7006-4821-bf32-035a7f5fe679/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:38:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-20 06:38:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-20 06:38:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2021-11-20 06:38:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2021-11-20 06:38:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-20 06:38:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-20 06:38:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 06:38:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 06:38:15,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 06:38:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2021-11-20 06:38:15,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2021-11-20 06:38:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-11-20 06:38:15,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-11-20 06:38:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:38:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:38:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2021-11-20 06:38:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2021-11-20 06:38:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-20 06:38:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-20 06:38:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2021-11-20 06:38:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2021-11-20 06:38:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2021-11-20 06:38:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2021-11-20 06:38:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2021-11-20 06:38:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2021-11-20 06:38:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2021-11-20 06:38:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2021-11-20 06:38:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2021-11-20 06:38:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2021-11-20 06:38:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2021-11-20 06:38:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2021-11-20 06:38:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2021-11-20 06:38:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2021-11-20 06:38:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-20 06:38:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-20 06:38:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2021-11-20 06:38:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2021-11-20 06:38:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2021-11-20 06:38:15,962 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2021-11-20 06:38:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 06:38:15,962 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 06:38:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-20 06:38:15,962 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-20 06:38:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:38:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2021-11-20 06:38:15,963 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2021-11-20 06:38:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2021-11-20 06:38:15,963 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2021-11-20 06:38:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2021-11-20 06:38:15,963 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2021-11-20 06:38:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 06:38:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2021-11-20 06:38:15,963 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2021-11-20 06:38:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-20 06:38:15,964 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-20 06:38:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-20 06:38:15,964 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-20 06:38:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2021-11-20 06:38:15,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2021-11-20 06:38:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 06:38:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-20 06:38:15,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-20 06:38:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2021-11-20 06:38:15,965 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2021-11-20 06:38:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2021-11-20 06:38:15,965 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2021-11-20 06:38:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-20 06:38:15,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-20 06:38:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:38:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 06:38:15,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 06:38:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2021-11-20 06:38:15,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2021-11-20 06:38:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-20 06:38:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-20 06:38:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-11-20 06:38:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-11-20 06:38:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2021-11-20 06:38:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2021-11-20 06:38:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-20 06:38:15,969 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-20 06:38:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2021-11-20 06:38:15,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2021-11-20 06:38:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2021-11-20 06:38:15,970 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2021-11-20 06:38:15,970 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-20 06:38:15,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-20 06:38:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2021-11-20 06:38:15,971 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2021-11-20 06:38:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2021-11-20 06:38:15,972 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2021-11-20 06:38:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 06:38:15,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 06:38:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:38:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2021-11-20 06:38:15,973 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2021-11-20 06:38:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-20 06:38:15,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-20 06:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 06:38:15,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 06:38:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 06:38:15,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 06:38:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:38:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 06:38:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-20 06:38:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-20 06:38:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2021-11-20 06:38:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2021-11-20 06:38:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2021-11-20 06:38:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2021-11-20 06:38:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2021-11-20 06:38:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2021-11-20 06:38:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2021-11-20 06:38:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2021-11-20 06:38:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:38:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:38:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-20 06:38:15,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-20 06:38:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-11-20 06:38:15,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-11-20 06:38:15,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-20 06:38:15,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-20 06:38:15,984 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2021-11-20 06:38:15,985 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2021-11-20 06:38:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-20 06:38:15,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-20 06:38:15,985 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-20 06:38:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-20 06:38:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2021-11-20 06:38:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2021-11-20 06:38:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-20 06:38:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-20 06:38:15,992 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2021-11-20 06:38:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2021-11-20 06:38:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:38:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:38:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-20 06:38:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-20 06:38:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-20 06:38:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-20 06:38:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 06:38:15,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 06:38:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 06:38:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 06:38:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-20 06:38:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-20 06:38:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-20 06:38:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-20 06:38:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2021-11-20 06:38:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2021-11-20 06:38:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 06:38:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 06:38:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-20 06:38:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-20 06:38:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2021-11-20 06:38:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2021-11-20 06:38:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-20 06:38:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-20 06:38:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2021-11-20 06:38:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2021-11-20 06:38:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2021-11-20 06:38:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2021-11-20 06:38:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2021-11-20 06:38:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2021-11-20 06:38:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 06:38:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 06:38:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 06:38:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 06:38:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2021-11-20 06:38:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2021-11-20 06:38:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-20 06:38:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-20 06:38:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:38:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:38:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-20 06:38:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-20 06:38:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:38:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:38:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-20 06:38:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-20 06:38:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2021-11-20 06:38:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2021-11-20 06:38:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:38:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-20 06:38:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-20 06:38:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2021-11-20 06:38:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2021-11-20 06:38:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:38:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2021-11-20 06:38:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2021-11-20 06:38:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2021-11-20 06:38:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2021-11-20 06:38:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2021-11-20 06:38:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2021-11-20 06:38:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2021-11-20 06:38:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2021-11-20 06:38:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-20 06:38:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-20 06:38:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:38:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 06:38:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 06:38:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2021-11-20 06:38:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2021-11-20 06:38:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2021-11-20 06:38:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2021-11-20 06:38:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-20 06:38:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-20 06:38:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2021-11-20 06:38:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2021-11-20 06:38:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-20 06:38:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-20 06:38:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-20 06:38:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-20 06:38:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2021-11-20 06:38:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2021-11-20 06:38:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2021-11-20 06:38:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2021-11-20 06:38:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2021-11-20 06:38:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2021-11-20 06:38:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-20 06:38:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-20 06:38:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2021-11-20 06:38:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2021-11-20 06:38:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2021-11-20 06:38:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2021-11-20 06:38:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-11-20 06:38:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-11-20 06:38:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2021-11-20 06:38:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2021-11-20 06:38:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-20 06:38:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-20 06:38:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2021-11-20 06:38:16,008 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2021-11-20 06:38:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2021-11-20 06:38:16,008 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2021-11-20 06:38:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 06:38:16,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 06:38:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2021-11-20 06:38:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2021-11-20 06:38:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2021-11-20 06:38:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2021-11-20 06:38:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:38:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2021-11-20 06:38:16,009 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2021-11-20 06:38:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2021-11-20 06:38:16,016 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2021-11-20 06:38:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 06:38:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 06:38:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2021-11-20 06:38:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2021-11-20 06:38:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2021-11-20 06:38:16,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2021-11-20 06:38:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 06:38:16,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 06:38:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-11-20 06:38:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-11-20 06:38:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-20 06:38:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-20 06:38:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-20 06:38:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-20 06:38:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-11-20 06:38:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-11-20 06:38:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2021-11-20 06:38:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2021-11-20 06:38:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-20 06:38:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-20 06:38:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-11-20 06:38:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-11-20 06:38:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2021-11-20 06:38:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2021-11-20 06:38:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2021-11-20 06:38:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2021-11-20 06:38:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2021-11-20 06:38:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2021-11-20 06:38:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2021-11-20 06:38:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2021-11-20 06:38:16,021 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2021-11-20 06:38:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2021-11-20 06:38:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:38:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2021-11-20 06:38:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2021-11-20 06:38:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2021-11-20 06:38:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2021-11-20 06:38:17,214 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:38:17,227 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:38:26,466 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 06:43:51,262 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:43:51,283 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:43:51,283 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:43:51,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:43:51 BoogieIcfgContainer [2021-11-20 06:43:51,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:43:51,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:43:51,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:43:51,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:43:51,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:38:08" (1/3) ... [2021-11-20 06:43:51,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a22e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:43:51, skipping insertion in model container [2021-11-20 06:43:51,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:38:13" (2/3) ... [2021-11-20 06:43:51,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a22e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:43:51, skipping insertion in model container [2021-11-20 06:43:51,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:43:51" (3/3) ... [2021-11-20 06:43:51,299 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-20 06:43:51,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:43:51,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:43:51,366 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:43:51,373 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:43:51,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:43:51,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 2657 states, 1872 states have (on average 1.3707264957264957) internal successors, (2566), 1907 states have internal predecessors, (2566), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) [2021-11-20 06:43:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 06:43:51,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:43:51,465 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:43:51,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:43:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:43:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash 396950189, now seen corresponding path program 1 times [2021-11-20 06:43:51,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:43:51,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495588256] [2021-11-20 06:43:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:43:51,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:43:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:43:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:43:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:43:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:43:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:43:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:43:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:43:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:43:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:43:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:43:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-20 06:43:53,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:43:53,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495588256] [2021-11-20 06:43:53,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495588256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:43:53,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:43:53,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:43:53,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809910802] [2021-11-20 06:43:53,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:43:53,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:43:53,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:43:53,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:43:53,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:43:53,139 INFO L87 Difference]: Start difference. First operand has 2657 states, 1872 states have (on average 1.3707264957264957) internal successors, (2566), 1907 states have internal predecessors, (2566), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:43:55,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:57,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:43:59,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:02,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:05,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:11,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:19,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:21,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:23,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:30,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:38,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:40,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:42,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:44:43,545 INFO L93 Difference]: Finished difference Result 5616 states and 8482 transitions. [2021-11-20 06:44:43,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:44:43,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2021-11-20 06:44:43,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:44:43,608 INFO L225 Difference]: With dead ends: 5616 [2021-11-20 06:44:43,608 INFO L226 Difference]: Without dead ends: 2942 [2021-11-20 06:44:43,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:44:43,641 INFO L933 BasicCegarLoop]: 3677 mSDtfsCounter, 1091 mSDsluCounter, 5849 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 1560 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 9526 SdHoareTripleChecker+Invalid, 4296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1560 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:44:43,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 9526 Invalid, 4296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1560 Valid, 2724 Invalid, 12 Unknown, 0 Unchecked, 49.8s Time] [2021-11-20 06:44:43,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-11-20 06:44:43,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2635. [2021-11-20 06:44:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 1867 states have (on average 1.3615425816818425) internal successors, (2542), 1885 states have internal predecessors, (2542), 636 states have call successors, (636), 132 states have call predecessors, (636), 131 states have return successors, (626), 625 states have call predecessors, (626), 626 states have call successors, (626) [2021-11-20 06:44:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3804 transitions. [2021-11-20 06:44:43,914 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3804 transitions. Word has length 98 [2021-11-20 06:44:43,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:44:43,915 INFO L470 AbstractCegarLoop]: Abstraction has 2635 states and 3804 transitions. [2021-11-20 06:44:43,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:44:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3804 transitions. [2021-11-20 06:44:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-20 06:44:43,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:44:43,929 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:44:43,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:44:43,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:44:43,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:44:43,930 INFO L85 PathProgramCache]: Analyzing trace with hash 230108723, now seen corresponding path program 1 times [2021-11-20 06:44:43,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:44:43,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051299946] [2021-11-20 06:44:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:44:43,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:44:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:44:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:44:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:44:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:44:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:44:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:44:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:44:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:44:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:44:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:44:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-20 06:44:45,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:44:45,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051299946] [2021-11-20 06:44:45,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051299946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:44:45,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:44:45,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:44:45,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927530901] [2021-11-20 06:44:45,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:44:45,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:44:45,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:44:45,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:44:45,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:44:45,058 INFO L87 Difference]: Start difference. First operand 2635 states and 3804 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:44:47,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:49,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:51,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:53,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:57,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:44:59,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:01,429 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:03,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:05,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:13,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:22,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:30,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:35,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:36,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:38,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:40,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:56,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:45:58,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:00,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:04,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:06,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:08,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:09,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:46:09,433 INFO L93 Difference]: Finished difference Result 8345 states and 12173 transitions. [2021-11-20 06:46:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:46:09,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 98 [2021-11-20 06:46:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:46:09,493 INFO L225 Difference]: With dead ends: 8345 [2021-11-20 06:46:09,493 INFO L226 Difference]: Without dead ends: 5725 [2021-11-20 06:46:09,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:46:09,512 INFO L933 BasicCegarLoop]: 4160 mSDtfsCounter, 5422 mSDsluCounter, 9719 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 3389 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5844 SdHoareTripleChecker+Valid, 13879 SdHoareTripleChecker+Invalid, 8047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3389 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:46:09,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5844 Valid, 13879 Invalid, 8047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3389 Valid, 4638 Invalid, 20 Unknown, 0 Unchecked, 83.5s Time] [2021-11-20 06:46:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2021-11-20 06:46:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5121. [2021-11-20 06:46:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 3640 states have (on average 1.3648351648351649) internal successors, (4968), 3666 states have internal predecessors, (4968), 1221 states have call successors, (1221), 258 states have call predecessors, (1221), 259 states have return successors, (1221), 1210 states have call predecessors, (1221), 1211 states have call successors, (1221) [2021-11-20 06:46:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 7410 transitions. [2021-11-20 06:46:09,816 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 7410 transitions. Word has length 98 [2021-11-20 06:46:09,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:46:09,817 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 7410 transitions. [2021-11-20 06:46:09,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-20 06:46:09,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 7410 transitions. [2021-11-20 06:46:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 06:46:09,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:46:09,820 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:46:09,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:46:09,821 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:46:09,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:46:09,821 INFO L85 PathProgramCache]: Analyzing trace with hash -996800530, now seen corresponding path program 1 times [2021-11-20 06:46:09,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:46:09,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668610615] [2021-11-20 06:46:09,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:46:09,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:46:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:46:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:46:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:46:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:46:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:46:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:46:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:46:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:46:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:46:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:46:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:46:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:46:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:46:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:46:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-20 06:46:10,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:46:10,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668610615] [2021-11-20 06:46:10,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668610615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:46:10,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:46:10,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:46:10,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291264286] [2021-11-20 06:46:10,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:46:10,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:46:10,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:46:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:46:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:46:10,985 INFO L87 Difference]: Start difference. First operand 5121 states and 7410 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 06:46:13,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:15,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:17,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:19,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:22,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:28,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:35,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:41,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:45,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:46:58,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:00,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:04,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:06,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:06,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:47:06,760 INFO L93 Difference]: Finished difference Result 16332 states and 23861 transitions. [2021-11-20 06:47:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:47:06,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2021-11-20 06:47:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:47:06,863 INFO L225 Difference]: With dead ends: 16332 [2021-11-20 06:47:06,864 INFO L226 Difference]: Without dead ends: 11226 [2021-11-20 06:47:06,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:47:06,893 INFO L933 BasicCegarLoop]: 4155 mSDtfsCounter, 5423 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 3473 mSolverCounterSat, 3403 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5848 SdHoareTripleChecker+Valid, 11952 SdHoareTripleChecker+Invalid, 6888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3403 IncrementalHoareTripleChecker+Valid, 3473 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:47:06,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5848 Valid, 11952 Invalid, 6888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3403 Valid, 3473 Invalid, 12 Unknown, 0 Unchecked, 55.0s Time] [2021-11-20 06:47:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2021-11-20 06:47:07,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 10007. [2021-11-20 06:47:07,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10007 states, 7117 states have (on average 1.3681326401573697) internal successors, (9737), 7156 states have internal predecessors, (9737), 2382 states have call successors, (2382), 506 states have call predecessors, (2382), 507 states have return successors, (2392), 2370 states have call predecessors, (2392), 2372 states have call successors, (2392) [2021-11-20 06:47:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10007 states to 10007 states and 14511 transitions. [2021-11-20 06:47:07,457 INFO L78 Accepts]: Start accepts. Automaton has 10007 states and 14511 transitions. Word has length 103 [2021-11-20 06:47:07,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:47:07,457 INFO L470 AbstractCegarLoop]: Abstraction has 10007 states and 14511 transitions. [2021-11-20 06:47:07,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-20 06:47:07,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10007 states and 14511 transitions. [2021-11-20 06:47:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 06:47:07,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:47:07,468 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:47:07,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:47:07,468 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:47:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:47:07,469 INFO L85 PathProgramCache]: Analyzing trace with hash -935993056, now seen corresponding path program 1 times [2021-11-20 06:47:07,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:47:07,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47684540] [2021-11-20 06:47:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:47:07,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:47:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:47:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:47:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:47:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:47:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:47:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:47:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:47:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:47:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:47:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:47:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:47:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:47:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-20 06:47:08,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:47:08,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47684540] [2021-11-20 06:47:08,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47684540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:47:08,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:47:08,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:47:08,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867461535] [2021-11-20 06:47:08,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:47:08,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:47:08,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:47:08,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:47:08,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:47:08,511 INFO L87 Difference]: Start difference. First operand 10007 states and 14511 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 06:47:10,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:12,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:16,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:18,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:25,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:34,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:39,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:47:43,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:03,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:05,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:09,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:11,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:12,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:12,174 INFO L93 Difference]: Finished difference Result 32163 states and 47010 transitions. [2021-11-20 06:48:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:48:12,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2021-11-20 06:48:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:12,314 INFO L225 Difference]: With dead ends: 32163 [2021-11-20 06:48:12,314 INFO L226 Difference]: Without dead ends: 22171 [2021-11-20 06:48:12,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:48:12,357 INFO L933 BasicCegarLoop]: 4207 mSDtfsCounter, 5436 mSDsluCounter, 9832 mSDsCounter, 0 mSdLazyCounter, 4616 mSolverCounterSat, 3389 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5861 SdHoareTripleChecker+Valid, 14039 SdHoareTripleChecker+Invalid, 8017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3389 IncrementalHoareTripleChecker+Valid, 4616 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:48:12,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5861 Valid, 14039 Invalid, 8017 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3389 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 62.7s Time] [2021-11-20 06:48:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22171 states. [2021-11-20 06:48:13,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22171 to 19770. [2021-11-20 06:48:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19770 states, 14072 states have (on average 1.3686753837407617) internal successors, (19260), 14141 states have internal predecessors, (19260), 4684 states have call successors, (4684), 1008 states have call predecessors, (4684), 1013 states have return successors, (4730), 4670 states have call predecessors, (4730), 4674 states have call successors, (4730) [2021-11-20 06:48:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19770 states to 19770 states and 28674 transitions. [2021-11-20 06:48:13,399 INFO L78 Accepts]: Start accepts. Automaton has 19770 states and 28674 transitions. Word has length 113 [2021-11-20 06:48:13,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:13,400 INFO L470 AbstractCegarLoop]: Abstraction has 19770 states and 28674 transitions. [2021-11-20 06:48:13,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 06:48:13,400 INFO L276 IsEmpty]: Start isEmpty. Operand 19770 states and 28674 transitions. [2021-11-20 06:48:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-20 06:48:13,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:13,403 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:48:13,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:48:13,403 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:48:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -393877760, now seen corresponding path program 1 times [2021-11-20 06:48:13,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:13,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931565378] [2021-11-20 06:48:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:13,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:48:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:48:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:48:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:48:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:48:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:48:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:48:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:48:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-20 06:48:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:48:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-20 06:48:14,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:14,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931565378] [2021-11-20 06:48:14,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931565378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:14,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:14,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:48:14,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362573121] [2021-11-20 06:48:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:14,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:48:14,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:48:14,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:48:14,384 INFO L87 Difference]: Start difference. First operand 19770 states and 28674 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:48:16,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:18,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:20,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:23,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:25,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:27,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:30,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:34,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:36,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:45,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:48:55,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:07,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:16,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:18,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:21,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:23,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:24,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:49:24,879 INFO L93 Difference]: Finished difference Result 61946 states and 90653 transitions. [2021-11-20 06:49:24,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:49:24,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2021-11-20 06:49:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:49:25,076 INFO L225 Difference]: With dead ends: 61946 [2021-11-20 06:49:25,076 INFO L226 Difference]: Without dead ends: 42191 [2021-11-20 06:49:25,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:49:25,146 INFO L933 BasicCegarLoop]: 4325 mSDtfsCounter, 5013 mSDsluCounter, 10390 mSDsCounter, 0 mSdLazyCounter, 4743 mSolverCounterSat, 3279 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5435 SdHoareTripleChecker+Valid, 14715 SdHoareTripleChecker+Invalid, 8037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3279 IncrementalHoareTripleChecker+Valid, 4743 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:49:25,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5435 Valid, 14715 Invalid, 8037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3279 Valid, 4743 Invalid, 15 Unknown, 0 Unchecked, 68.9s Time] [2021-11-20 06:49:25,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42191 states. [2021-11-20 06:49:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42191 to 36618. [2021-11-20 06:49:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36618 states, 26120 states have (on average 1.3753445635528332) internal successors, (35924), 26217 states have internal predecessors, (35924), 8612 states have call successors, (8612), 1876 states have call predecessors, (8612), 1885 states have return successors, (8690), 8598 states have call predecessors, (8690), 8602 states have call successors, (8690) [2021-11-20 06:49:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36618 states to 36618 states and 53226 transitions. [2021-11-20 06:49:26,925 INFO L78 Accepts]: Start accepts. Automaton has 36618 states and 53226 transitions. Word has length 114 [2021-11-20 06:49:26,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:49:26,926 INFO L470 AbstractCegarLoop]: Abstraction has 36618 states and 53226 transitions. [2021-11-20 06:49:26,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:49:26,926 INFO L276 IsEmpty]: Start isEmpty. Operand 36618 states and 53226 transitions. [2021-11-20 06:49:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-20 06:49:26,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:49:26,930 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:49:26,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:49:26,930 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:49:26,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:49:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 897892227, now seen corresponding path program 1 times [2021-11-20 06:49:26,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:49:26,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596793355] [2021-11-20 06:49:26,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:49:26,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:49:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:49:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:49:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:49:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:49:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:49:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:49:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:49:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:49:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:49:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:49:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:49:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:49:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:49:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-20 06:49:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:49:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:49:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-20 06:49:28,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:49:28,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596793355] [2021-11-20 06:49:28,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596793355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:49:28,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:49:28,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:49:28,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500625462] [2021-11-20 06:49:28,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:49:28,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:49:28,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:49:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:49:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:49:28,018 INFO L87 Difference]: Start difference. First operand 36618 states and 53226 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 06:49:30,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:33,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:35,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:41,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:48,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:49:55,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:02,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:50:03,374 INFO L93 Difference]: Finished difference Result 82217 states and 119412 transitions. [2021-11-20 06:50:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:50:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2021-11-20 06:50:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:50:03,586 INFO L225 Difference]: With dead ends: 82217 [2021-11-20 06:50:03,586 INFO L226 Difference]: Without dead ends: 45614 [2021-11-20 06:50:04,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:50:04,074 INFO L933 BasicCegarLoop]: 3713 mSDtfsCounter, 4421 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 2192 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 4478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2192 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:50:04,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4693 Valid, 8521 Invalid, 4478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2192 Valid, 2279 Invalid, 7 Unknown, 0 Unchecked, 34.0s Time] [2021-11-20 06:50:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45614 states. [2021-11-20 06:50:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45614 to 40012. [2021-11-20 06:50:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40012 states, 28533 states have (on average 1.3684856131496863) internal successors, (39047), 28628 states have internal predecessors, (39047), 9181 states have call successors, (9181), 2289 states have call predecessors, (9181), 2297 states have return successors, (9275), 9168 states have call predecessors, (9275), 9171 states have call successors, (9275) [2021-11-20 06:50:06,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40012 states to 40012 states and 57503 transitions. [2021-11-20 06:50:06,205 INFO L78 Accepts]: Start accepts. Automaton has 40012 states and 57503 transitions. Word has length 118 [2021-11-20 06:50:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:50:06,207 INFO L470 AbstractCegarLoop]: Abstraction has 40012 states and 57503 transitions. [2021-11-20 06:50:06,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 06:50:06,207 INFO L276 IsEmpty]: Start isEmpty. Operand 40012 states and 57503 transitions. [2021-11-20 06:50:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 06:50:06,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:50:06,211 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:50:06,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:50:06,212 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:50:06,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:50:06,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1579122139, now seen corresponding path program 1 times [2021-11-20 06:50:06,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:50:06,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737794552] [2021-11-20 06:50:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:50:06,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:50:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:50:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:50:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:50:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:50:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:50:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:50:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:50:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:50:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:50:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:50:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:50:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:50:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:50:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-20 06:50:07,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:50:07,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737794552] [2021-11-20 06:50:07,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737794552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:50:07,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:50:07,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:50:07,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876717455] [2021-11-20 06:50:07,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:50:07,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:50:07,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:50:07,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:50:07,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:50:07,903 INFO L87 Difference]: Start difference. First operand 40012 states and 57503 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:50:10,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:12,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:14,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:17,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:19,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:21,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:22,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:23,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:26,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:35,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:44,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:50:55,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:05,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:07,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:09,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:51:11,896 INFO L93 Difference]: Finished difference Result 45622 states and 66011 transitions. [2021-11-20 06:51:11,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:51:11,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2021-11-20 06:51:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:51:12,036 INFO L225 Difference]: With dead ends: 45622 [2021-11-20 06:51:12,036 INFO L226 Difference]: Without dead ends: 45619 [2021-11-20 06:51:12,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:51:12,059 INFO L933 BasicCegarLoop]: 3626 mSDtfsCounter, 4562 mSDsluCounter, 7379 mSDsCounter, 0 mSdLazyCounter, 4374 mSolverCounterSat, 2036 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 11005 SdHoareTripleChecker+Invalid, 6422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 4374 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:51:12,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4942 Valid, 11005 Invalid, 6422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 4374 Invalid, 12 Unknown, 0 Unchecked, 62.6s Time] [2021-11-20 06:51:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45619 states. [2021-11-20 06:51:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45619 to 40084. [2021-11-20 06:51:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40084 states, 28587 states have (on average 1.3682792877881556) internal successors, (39115), 28680 states have internal predecessors, (39115), 9185 states have call successors, (9185), 2303 states have call predecessors, (9185), 2311 states have return successors, (9280), 9174 states have call predecessors, (9280), 9176 states have call successors, (9280) [2021-11-20 06:51:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40084 states to 40084 states and 57580 transitions. [2021-11-20 06:51:14,182 INFO L78 Accepts]: Start accepts. Automaton has 40084 states and 57580 transitions. Word has length 127 [2021-11-20 06:51:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:51:14,183 INFO L470 AbstractCegarLoop]: Abstraction has 40084 states and 57580 transitions. [2021-11-20 06:51:14,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:51:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 40084 states and 57580 transitions. [2021-11-20 06:51:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:51:14,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:51:14,188 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:51:14,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:51:14,188 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:51:14,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:51:14,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1709118667, now seen corresponding path program 1 times [2021-11-20 06:51:14,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:51:14,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676632169] [2021-11-20 06:51:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:51:14,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:51:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:51:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:51:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:51:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:51:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:51:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:51:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:51:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:51:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 06:51:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:51:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:51:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:51:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:51:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-11-20 06:51:15,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:51:15,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676632169] [2021-11-20 06:51:15,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676632169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:51:15,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:51:15,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:51:15,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932936246] [2021-11-20 06:51:15,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:51:15,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:51:15,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:51:15,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:51:15,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:51:15,729 INFO L87 Difference]: Start difference. First operand 40084 states and 57580 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:51:17,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:19,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:24,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:51:27,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []