./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa --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 2c422fb06a669ce5225d4a34bb003621d8e04f4e033c19b27cdce4080ea01ff2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:43:06,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:43:06,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:43:06,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:43:06,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:43:06,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:43:06,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:43:06,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:43:06,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:43:06,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:43:06,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:43:06,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:43:06,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:43:06,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:43:06,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:43:06,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:43:06,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:43:06,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:43:06,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:43:06,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:43:06,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:43:06,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:43:06,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:43:06,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:43:06,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:43:06,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:43:06,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:43:06,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:43:06,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:43:06,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:43:06,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:43:06,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:43:06,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:43:06,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:43:06,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:43:06,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:43:06,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:43:06,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:43:06,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:43:06,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:43:06,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:43:06,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:43:06,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:43:06,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:43:06,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:43:06,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:43:06,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:43:06,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:43:06,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:43:06,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:43:06,233 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:43:06,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:43:06,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:43:06,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:43:06,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:43:06,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:43:06,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:43:06,236 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:43:06,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:43:06,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:43:06,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:43:06,236 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_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c422fb06a669ce5225d4a34bb003621d8e04f4e033c19b27cdce4080ea01ff2 [2021-12-07 01:43:06,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:43:06,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:43:06,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:43:06,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:43:06,435 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:43:06,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-07 01:43:06,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/data/18bfb0b31/e215ea481560480d9e411d55beba34d9/FLAG1669690d8 [2021-12-07 01:43:07,243 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:43:07,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-07 01:43:07,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/data/18bfb0b31/e215ea481560480d9e411d55beba34d9/FLAG1669690d8 [2021-12-07 01:43:07,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/data/18bfb0b31/e215ea481560480d9e411d55beba34d9 [2021-12-07 01:43:07,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:43:07,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:43:07,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:43:07,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:43:07,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:43:07,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:43:07" (1/1) ... [2021-12-07 01:43:07,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1665fd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:07, skipping insertion in model container [2021-12-07 01:43:07,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:43:07" (1/1) ... [2021-12-07 01:43:07,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:43:07,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:43:15,050 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_d8dc277f-468d-492e-83b4-260dc0126bf2/sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-12-07 01:43:15,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:43:15,575 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:43:16,336 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_d8dc277f-468d-492e-83b4-260dc0126bf2/sv-benchmarks/c/ldv-linux-3.7.3/main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i[722028,722041] [2021-12-07 01:43:16,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:43:16,793 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:43:16,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16 WrapperNode [2021-12-07 01:43:16,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:43:16,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:43:16,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:43:16,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:43:16,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:16,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,115 INFO L137 Inliner]: procedures = 1046, calls = 9656, calls flagged for inlining = 360, calls inlined = 206, statements flattened = 9221 [2021-12-07 01:43:17,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:43:17,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:43:17,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:43:17,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:43:17,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:43:17,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:43:17,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:43:17,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:43:17,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (1/1) ... [2021-12-07 01:43:17,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:43:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:17,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:17,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8dc277f-468d-492e-83b4-260dc0126bf2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:43:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dummy_query_bo_prepare [2021-12-07 01:43:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dummy_query_bo_prepare [2021-12-07 01:43:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_destroy [2021-12-07 01:43:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_destroy [2021-12-07 01:43:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_init [2021-12-07 01:43:17,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_init [2021-12-07 01:43:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2021-12-07 01:43:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2021-12-07 01:43:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_init [2021-12-07 01:43:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_init [2021-12-07 01:43:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-12-07 01:43:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-12-07 01:43:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_round_pot [2021-12-07 01:43:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_round_pot [2021-12-07 01:43:17,505 INFO L130 BoogieDeclarations]: Found specification of procedure drm_master_get [2021-12-07 01:43:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_master_get [2021-12-07 01:43:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-07 01:43:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-07 01:43:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_set_config [2021-12-07 01:43:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_set_config [2021-12-07 01:43:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_backoff_reservation [2021-12-07 01:43:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_backoff_reservation [2021-12-07 01:43:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mtrr_del [2021-12-07 01:43:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mtrr_del [2021-12-07 01:43:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_move_buffer [2021-12-07 01:43:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_move_buffer [2021-12-07 01:43:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_firstopen [2021-12-07 01:43:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_firstopen [2021-12-07 01:43:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_lastclose [2021-12-07 01:43:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_lastclose [2021-12-07 01:43:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_pause_all [2021-12-07 01:43:17,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_pause_all [2021-12-07 01:43:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_surface_destroy [2021-12-07 01:43:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_surface_destroy [2021-12-07 01:43:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_destroy [2021-12-07 01:43:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_destroy [2021-12-07 01:43:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-07 01:43:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-07 01:43:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-07 01:43:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 01:43:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 01:43:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-07 01:43:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-07 01:43:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unreserve [2021-12-07 01:43:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unreserve [2021-12-07 01:43:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-07 01:43:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-07 01:43:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-07 01:43:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-07 01:43:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-07 01:43:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-07 01:43:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_free [2021-12-07 01:43:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_free [2021-12-07 01:43:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram_or_gmr [2021-12-07 01:43:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram_or_gmr [2021-12-07 01:43:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-07 01:43:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-07 01:43:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-07 01:43:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-07 01:43:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:43:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_commit_list [2021-12-07 01:43:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_commit_list [2021-12-07 01:43:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_mutex [2021-12-07 01:43:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_mutex [2021-12-07 01:43:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_emit_dummy_query [2021-12-07 01:43:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_emit_dummy_query [2021-12-07 01:43:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_context_destroy [2021-12-07 01:43:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_context_destroy [2021-12-07 01:43:17,511 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_del_active [2021-12-07 01:43:17,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_del_active [2021-12-07 01:43:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_alloc [2021-12-07 01:43:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_alloc [2021-12-07 01:43:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_destroy [2021-12-07 01:43:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_destroy [2021-12-07 01:43:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-07 01:43:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-07 01:43:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_release [2021-12-07 01:43:17,512 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_release [2021-12-07 01:43:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_init [2021-12-07 01:43:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_init [2021-12-07 01:43:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:43:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_vt_unlock [2021-12-07 01:43:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_vt_unlock [2021-12-07 01:43:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_add [2021-12-07 01:43:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_add [2021-12-07 01:43:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_complete [2021-12-07 01:43:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_complete [2021-12-07 01:43:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_destroy [2021-12-07 01:43:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_destroy [2021-12-07 01:43:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-07 01:43:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-07 01:43:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dma_buffer [2021-12-07 01:43:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dma_buffer [2021-12-07 01:43:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_evict_mm [2021-12-07 01:43:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_evict_mm [2021-12-07 01:43:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:43:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_image [2021-12-07 01:43:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_image [2021-12-07 01:43:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_display_unit_cleanup [2021-12-07 01:43:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_display_unit_cleanup [2021-12-07 01:43:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:43:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 01:43:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_destroy [2021-12-07 01:43:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_destroy [2021-12-07 01:43:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_context_base_release [2021-12-07 01:43:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_context_base_release [2021-12-07 01:43:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_passed [2021-12-07 01:43:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_passed [2021-12-07 01:43:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-07 01:43:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-07 01:43:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_have_3d [2021-12-07 01:43:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_have_3d [2021-12-07 01:43:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_have_pitchlock [2021-12-07 01:43:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_have_pitchlock [2021-12-07 01:43:17,516 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-07 01:43:17,516 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-07 01:43:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_stream_destroy [2021-12-07 01:43:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_stream_destroy [2021-12-07 01:43:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-07 01:43:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-07 01:43:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_write [2021-12-07 01:43:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_write [2021-12-07 01:43:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2021-12-07 01:43:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2021-12-07 01:43:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_wait [2021-12-07 01:43:17,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_wait [2021-12-07 01:43:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_close [2021-12-07 01:43:17,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_close [2021-12-07 01:43:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-07 01:43:17,518 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-07 01:43:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:43:17,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:43:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_write_svga [2021-12-07 01:43:17,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_write_svga [2021-12-07 01:43:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_release_mutex [2021-12-07 01:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_release_mutex [2021-12-07 01:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_init [2021-12-07 01:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_init [2021-12-07 01:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fallback_wait [2021-12-07 01:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fallback_wait [2021-12-07 01:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 01:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_reference [2021-12-07 01:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_reference [2021-12-07 01:43:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-12-07 01:43:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-12-07 01:43:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_hw_surface_destroy [2021-12-07 01:43:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_hw_surface_destroy [2021-12-07 01:43:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-07 01:43:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-07 01:43:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-07 01:43:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-07 01:43:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_attach_encoder [2021-12-07 01:43:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_attach_encoder [2021-12-07 01:43:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_reserve [2021-12-07 01:43:17,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_reserve [2021-12-07 01:43:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-07 01:43:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-07 01:43:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_off [2021-12-07 01:43:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_off [2021-12-07 01:43:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-07 01:43:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-07 01:43:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 01:43:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 01:43:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_crtc_set_gamma_size [2021-12-07 01:43:17,521 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_crtc_set_gamma_size [2021-12-07 01:43:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_lock [2021-12-07 01:43:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_lock [2021-12-07 01:43:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_dec [2021-12-07 01:43:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_dec [2021-12-07 01:43:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure drm_connector_attach_property [2021-12-07 01:43:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_connector_attach_property [2021-12-07 01:43:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-07 01:43:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-07 01:43:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_device_release [2021-12-07 01:43:17,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_device_release [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 01:43:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-07 01:43:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-07 01:43:17,523 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-07 01:43:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_global_release [2021-12-07 01:43:17,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_global_release [2021-12-07 01:43:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-07 01:43:17,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-07 01:43:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-07 01:43:17,524 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-07 01:43:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-07 01:43:17,524 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-07 01:43:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_add_active [2021-12-07 01:43:17,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_add_active [2021-12-07 01:43:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fpriv [2021-12-07 01:43:17,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fpriv [2021-12-07 01:43:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-07 01:43:17,525 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-07 01:43:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_reserve_buffers [2021-12-07 01:43:17,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_reserve_buffers [2021-12-07 01:43:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-07 01:43:17,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-07 01:43:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_start_of_vram [2021-12-07 01:43:17,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_start_of_vram [2021-12-07 01:43:17,525 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-07 01:43:17,526 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-07 01:43:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_set_par [2021-12-07 01:43:17,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_set_par [2021-12-07 01:43:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_populate [2021-12-07 01:43:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_dirty_mark [2021-12-07 01:43:17,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_dirty_mark [2021-12-07 01:43:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmdbuf_mutex [2021-12-07 01:43:17,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmdbuf_mutex [2021-12-07 01:43:17,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-12-07 01:43:17,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmdbuf_mutex [2021-12-07 01:43:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_crtc_destroy [2021-12-07 01:43:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_crtc_destroy [2021-12-07 01:43:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_clean_mm [2021-12-07 01:43:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_clean_mm [2021-12-07 01:43:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_stop [2021-12-07 01:43:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_stop [2021-12-07 01:43:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:43:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure drm_vblank_cleanup [2021-12-07 01:43:17,527 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_vblank_cleanup [2021-12-07 01:43:17,527 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_du_connector_detect [2021-12-07 01:43:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_du_connector_detect [2021-12-07 01:43:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-07 01:43:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-07 01:43:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 01:43:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 01:43:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_unref [2021-12-07 01:43:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_unref [2021-12-07 01:43:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_create [2021-12-07 01:43:17,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_create [2021-12-07 01:43:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_resource_unreference [2021-12-07 01:43:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_resource_unreference [2021-12-07 01:43:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-12-07 01:43:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-12-07 01:43:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_get_guest_ptr [2021-12-07 01:43:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_get_guest_ptr [2021-12-07 01:43:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_placement [2021-12-07 01:43:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_placement [2021-12-07 01:43:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_save_vga [2021-12-07 01:43:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_save_vga [2021-12-07 01:43:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-07 01:43:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-07 01:43:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_update [2021-12-07 01:43:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_update [2021-12-07 01:43:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sync_obj_unref [2021-12-07 01:43:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sync_obj_unref [2021-12-07 01:43:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_crtc_set_config [2021-12-07 01:43:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_crtc_set_config [2021-12-07 01:43:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-07 01:43:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-07 01:43:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-07 01:43:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-07 01:43:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-07 01:43:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-07 01:43:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_is_full [2021-12-07 01:43:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_is_full [2021-12-07 01:43:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_send_put [2021-12-07 01:43:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_send_put [2021-12-07 01:43:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_marker_pull [2021-12-07 01:43:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_marker_pull [2021-12-07 01:43:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_cleanup [2021-12-07 01:43:17,532 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_cleanup [2021-12-07 01:43:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-07 01:43:17,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-07 01:43:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-12-07 01:43:17,532 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-12-07 01:43:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_update_seqno [2021-12-07 01:43:17,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_update_seqno [2021-12-07 01:43:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fb_surf_mutex [2021-12-07 01:43:17,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fb_surf_mutex [2021-12-07 01:43:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-07 01:43:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-07 01:43:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure getrawmonotonic [2021-12-07 01:43:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getrawmonotonic [2021-12-07 01:43:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fences_perform_actions [2021-12-07 01:43:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fences_perform_actions [2021-12-07 01:43:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_encoder_destroy [2021-12-07 01:43:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_encoder_destroy [2021-12-07 01:43:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure fill_flush [2021-12-07 01:43:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_flush [2021-12-07 01:43:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2021-12-07 01:43:17,534 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2021-12-07 01:43:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 01:43:17,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 01:43:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unreference [2021-12-07 01:43:17,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unreference [2021-12-07 01:43:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_unreference [2021-12-07 01:43:17,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_unreference [2021-12-07 01:43:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-07 01:43:17,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-07 01:43:17,534 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_fence_buffer_objects [2021-12-07 01:43:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_fence_buffer_objects [2021-12-07 01:43:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fifo_mutex [2021-12-07 01:43:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fifo_mutex [2021-12-07 01:43:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-07 01:43:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-07 01:43:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_wait [2021-12-07 01:43:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_wait [2021-12-07 01:43:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_prepare [2021-12-07 01:43:17,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_prepare [2021-12-07 01:43:17,535 INFO L130 BoogieDeclarations]: Found specification of procedure drm_master_put [2021-12-07 01:43:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_master_put [2021-12-07 01:43:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2021-12-07 01:43:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2021-12-07 01:43:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-07 01:43:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-07 01:43:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_goal_irq_mutex [2021-12-07 01:43:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_goal_irq_mutex [2021-12-07 01:43:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_bo_pin [2021-12-07 01:43:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_bo_pin [2021-12-07 01:43:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:43:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-07 01:43:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-07 01:43:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_init [2021-12-07 01:43:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_init [2021-12-07 01:43:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_sub [2021-12-07 01:43:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_sub [2021-12-07 01:43:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_close [2021-12-07 01:43:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_close [2021-12-07 01:43:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 01:43:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_resume [2021-12-07 01:43:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_resume [2021-12-07 01:43:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-07 01:43:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-07 01:43:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-07 01:43:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-07 01:43:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 01:43:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fb_close [2021-12-07 01:43:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fb_close [2021-12-07 01:43:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ttm_unbind [2021-12-07 01:43:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ttm_unbind [2021-12-07 01:43:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-07 01:43:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-07 01:43:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_pm_suspend [2021-12-07 01:43:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_pm_suspend [2021-12-07 01:43:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 01:43:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 01:43:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_unpin [2021-12-07 01:43:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_unpin [2021-12-07 01:43:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_kms_restore_vga [2021-12-07 01:43:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_kms_restore_vga [2021-12-07 01:43:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_request_device [2021-12-07 01:43:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_request_device [2021-12-07 01:43:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_unreference [2021-12-07 01:43:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_unreference [2021-12-07 01:43:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-07 01:43:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-07 01:43:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-07 01:43:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-07 01:43:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2021-12-07 01:43:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2021-12-07 01:43:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_unref [2021-12-07 01:43:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_unref [2021-12-07 01:43:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_fifo_down [2021-12-07 01:43:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_fifo_down [2021-12-07 01:43:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_ldu_connector_destroy [2021-12-07 01:43:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_ldu_connector_destroy [2021-12-07 01:43:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_read [2021-12-07 01:43:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_read [2021-12-07 01:43:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-07 01:43:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-07 01:43:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:43:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:43:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-07 01:43:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-07 01:43:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_vt_lock [2021-12-07 01:43:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_vt_lock [2021-12-07 01:43:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_destroy_locked [2021-12-07 01:43:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_destroy_locked [2021-12-07 01:43:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_fifo_destroy [2021-12-07 01:43:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_fifo_destroy [2021-12-07 01:43:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_pool_unpopulate [2021-12-07 01:43:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_seqno_waiter_remove [2021-12-07 01:43:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_seqno_waiter_remove [2021-12-07 01:43:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_stream_base_release [2021-12-07 01:43:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_stream_base_release [2021-12-07 01:43:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_release_device [2021-12-07 01:43:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_release_device [2021-12-07 01:43:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-07 01:43:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-07 01:43:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_driver_unload [2021-12-07 01:43:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_driver_unload [2021-12-07 01:43:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-07 01:43:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-07 01:43:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fb_surf_mutex [2021-12-07 01:43:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fb_surf_mutex [2021-12-07 01:43:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-07 01:43:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-07 01:43:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-07 01:43:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-07 01:43:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_global_free [2021-12-07 01:43:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_global_free [2021-12-07 01:43:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_write_unlock [2021-12-07 01:43:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_write_unlock [2021-12-07 01:43:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure drm_connector_init [2021-12-07 01:43:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_connector_init [2021-12-07 01:43:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-07 01:43:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-07 01:43:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 01:43:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure drm_encoder_init [2021-12-07 01:43:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_encoder_init [2021-12-07 01:43:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_encode [2021-12-07 01:43:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_encode [2021-12-07 01:43:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_work_func [2021-12-07 01:43:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_work_func [2021-12-07 01:43:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_lock_set_kill [2021-12-07 01:43:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_lock_set_kill [2021-12-07 01:43:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_update_stream [2021-12-07 01:43:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_update_stream [2021-12-07 01:43:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reference [2021-12-07 01:43:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reference [2021-12-07 01:43:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2021-12-07 01:43:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2021-12-07 01:43:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_connector_destroy [2021-12-07 01:43:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_connector_destroy [2021-12-07 01:43:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_encoder_destroy [2021-12-07 01:43:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_encoder_destroy [2021-12-07 01:43:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_cursor_update_dmabuf [2021-12-07 01:43:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_cursor_update_dmabuf [2021-12-07 01:43:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-07 01:43:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-07 01:43:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 01:43:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 01:43:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_unpin [2021-12-07 01:43:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_unpin [2021-12-07 01:43:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_base_release [2021-12-07 01:43:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_base_release [2021-12-07 01:43:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_master_init [2021-12-07 01:43:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_master_init [2021-12-07 01:43:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-12-07 01:43:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~uint32_t~0~TO~~bool~0 [2021-12-07 01:43:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-07 01:43:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-07 01:43:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_release_mutex [2021-12-07 01:43:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_release_mutex [2021-12-07 01:43:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_init [2021-12-07 01:43:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_init [2021-12-07 01:43:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_3d_resource_inc [2021-12-07 01:43:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_3d_resource_inc [2021-12-07 01:43:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_stop [2021-12-07 01:43:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_stop [2021-12-07 01:43:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_priv [2021-12-07 01:43:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_priv [2021-12-07 01:43:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:43:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_goal_irq_mutex [2021-12-07 01:43:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_goal_irq_mutex [2021-12-07 01:43:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_commit [2021-12-07 01:43:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_commit [2021-12-07 01:43:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_init [2021-12-07 01:43:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-07 01:43:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-07 01:43:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_mutex [2021-12-07 01:43:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_mutex [2021-12-07 01:43:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_event_fence_action_cleanup [2021-12-07 01:43:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_event_fence_action_cleanup [2021-12-07 01:43:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_unpin_panic [2021-12-07 01:43:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_unpin_panic [2021-12-07 01:43:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_sou_backing_alloc [2021-12-07 01:43:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_sou_backing_alloc [2021-12-07 01:43:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_init_mm [2021-12-07 01:43:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_init_mm [2021-12-07 01:43:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_obj_signaled [2021-12-07 01:43:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_obj_signaled [2021-12-07 01:43:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_overlay_resume_all [2021-12-07 01:43:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_overlay_resume_all [2021-12-07 01:43:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_reserve [2021-12-07 01:43:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_reserve [2021-12-07 01:43:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_idle [2021-12-07 01:43:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_idle [2021-12-07 01:43:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_reference [2021-12-07 01:43:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_reference [2021-12-07 01:43:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 01:43:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 01:43:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_base_object_unref [2021-12-07 01:43:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_base_object_unref [2021-12-07 01:43:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_master [2021-12-07 01:43:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_master [2021-12-07 01:43:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_fence_create [2021-12-07 01:43:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_fence_create [2021-12-07 01:43:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_dmabuf_to_vram [2021-12-07 01:43:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_dmabuf_to_vram [2021-12-07 01:43:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_remove [2021-12-07 01:43:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_remove [2021-12-07 01:43:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_surface_destroy_size [2021-12-07 01:43:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_surface_destroy_size [2021-12-07 01:43:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-07 01:43:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-07 01:43:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_framebuffer_dmabuf_pin [2021-12-07 01:43:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_framebuffer_dmabuf_pin [2021-12-07 01:43:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-07 01:43:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-07 01:43:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2021-12-07 01:43:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2021-12-07 01:43:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_user_surface_base_release [2021-12-07 01:43:17,554 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_user_surface_base_release [2021-12-07 01:43:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_mem_glob [2021-12-07 01:43:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_mem_glob [2021-12-07 01:43:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_fence_commands [2021-12-07 01:43:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_fence_commands [2021-12-07 01:43:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_ping_host [2021-12-07 01:43:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_ping_host [2021-12-07 01:43:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_object_device_release [2021-12-07 01:43:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_object_device_release [2021-12-07 01:43:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_release [2021-12-07 01:43:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_release [2021-12-07 01:43:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure drm_vblank_init [2021-12-07 01:43:17,555 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_vblank_init [2021-12-07 01:43:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-07 01:43:17,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-07 01:43:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fifo_send_fence [2021-12-07 01:43:17,556 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fifo_send_fence [2021-12-07 01:43:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure fill_escape [2021-12-07 01:43:17,556 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_escape [2021-12-07 01:43:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_fence_manager_takedown [2021-12-07 01:43:17,556 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_fence_manager_takedown [2021-12-07 01:43:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-07 01:43:17,556 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-07 01:43:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure vmw_execbuf_release_pinned_bo [2021-12-07 01:43:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure vmw_execbuf_release_pinned_bo [2021-12-07 01:43:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-07 01:43:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-07 01:43:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:43:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-07 01:43:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-07 01:43:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_create_dirty_info_property [2021-12-07 01:43:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_create_dirty_info_property [2021-12-07 01:43:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2021-12-07 01:43:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2021-12-07 01:43:18,267 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:43:18,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:44:07,775 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:44:07,800 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:44:07,800 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 01:44:07,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:44:07 BoogieIcfgContainer [2021-12-07 01:44:07,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:44:07,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:44:07,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:44:07,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:44:07,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:43:07" (1/3) ... [2021-12-07 01:44:07,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b29bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:44:07, skipping insertion in model container [2021-12-07 01:44:07,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:16" (2/3) ... [2021-12-07 01:44:07,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b29bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:44:07, skipping insertion in model container [2021-12-07 01:44:07,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:44:07" (3/3) ... [2021-12-07 01:44:07,813 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-gpu-drm-vmwgfx-vmwgfx-ko--32_7a--linux-3.5.i [2021-12-07 01:44:07,817 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:44:07,818 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:44:07,868 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:44:07,874 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 [2021-12-07 01:44:07,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:44:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 3944 states, 2433 states have (on average 1.2675709001233046) internal successors, (3084), 2566 states have internal predecessors, (3084), 1254 states have call successors, (1254), 255 states have call predecessors, (1254), 255 states have return successors, (1254), 1227 states have call predecessors, (1254), 1254 states have call successors, (1254) [2021-12-07 01:44:07,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-07 01:44:07,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:44:07,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:44:07,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:44:07,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:44:07,958 INFO L85 PathProgramCache]: Analyzing trace with hash 101047357, now seen corresponding path program 1 times [2021-12-07 01:44:07,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:44:07,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387059356] [2021-12-07 01:44:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:44:07,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:44:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:08,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:44:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:44:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:44:08,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:44:08,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387059356] [2021-12-07 01:44:08,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387059356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:44:08,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:44:08,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:44:08,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797223807] [2021-12-07 01:44:08,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:44:08,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:44:08,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:44:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:44:08,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:44:08,817 INFO L87 Difference]: Start difference. First operand has 3944 states, 2433 states have (on average 1.2675709001233046) internal successors, (3084), 2566 states have internal predecessors, (3084), 1254 states have call successors, (1254), 255 states have call predecessors, (1254), 255 states have return successors, (1254), 1227 states have call predecessors, (1254), 1254 states have call successors, (1254) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:44:18,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:26,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:28,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:30,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:35,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:41,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:54,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:57,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:01,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:11,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:45:11,151 INFO L93 Difference]: Finished difference Result 11868 states and 17630 transitions. [2021-12-07 01:45:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:45:11,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-12-07 01:45:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:45:11,225 INFO L225 Difference]: With dead ends: 11868 [2021-12-07 01:45:11,225 INFO L226 Difference]: Without dead ends: 7873 [2021-12-07 01:45:11,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:45:11,262 INFO L933 BasicCegarLoop]: 5356 mSDtfsCounter, 7964 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 7956 mSolverCounterSat, 4212 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9033 SdHoareTripleChecker+Valid, 7024 SdHoareTripleChecker+Invalid, 12176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4212 IncrementalHoareTripleChecker+Valid, 7956 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:45:11,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9033 Valid, 7024 Invalid, 12176 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4212 Valid, 7956 Invalid, 8 Unknown, 0 Unchecked, 61.1s Time] [2021-12-07 01:45:11,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2021-12-07 01:45:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 7328. [2021-12-07 01:45:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7328 states, 4499 states have (on average 1.2480551233607469) internal successors, (5615), 4734 states have internal predecessors, (5615), 2289 states have call successors, (2289), 477 states have call predecessors, (2289), 539 states have return successors, (2535), 2262 states have call predecessors, (2535), 2261 states have call successors, (2535) [2021-12-07 01:45:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 10439 transitions. [2021-12-07 01:45:11,942 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 10439 transitions. Word has length 19 [2021-12-07 01:45:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:45:11,942 INFO L470 AbstractCegarLoop]: Abstraction has 7328 states and 10439 transitions. [2021-12-07 01:45:11,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:45:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 10439 transitions. [2021-12-07 01:45:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-07 01:45:11,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:45:11,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:11,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:45:11,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:45:11,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1165707191, now seen corresponding path program 1 times [2021-12-07 01:45:11,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:11,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212063828] [2021-12-07 01:45:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:11,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:45:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:45:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:12,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:12,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212063828] [2021-12-07 01:45:12,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212063828] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:45:12,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:45:12,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:45:12,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638302062] [2021-12-07 01:45:12,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:45:12,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:45:12,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:12,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:45:12,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:45:12,484 INFO L87 Difference]: Start difference. First operand 7328 states and 10439 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:45:14,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:22,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:29,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:31,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:34,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:36,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:43,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:45:43,114 INFO L93 Difference]: Finished difference Result 7860 states and 11279 transitions. [2021-12-07 01:45:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:45:43,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-12-07 01:45:43,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:45:43,164 INFO L225 Difference]: With dead ends: 7860 [2021-12-07 01:45:43,164 INFO L226 Difference]: Without dead ends: 7857 [2021-12-07 01:45:43,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:45:43,168 INFO L933 BasicCegarLoop]: 4305 mSDtfsCounter, 6274 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3344 mSolverCounterSat, 3178 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6961 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 6526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3178 IncrementalHoareTripleChecker+Valid, 3344 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:45:43,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6961 Valid, 4895 Invalid, 6526 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3178 Valid, 3344 Invalid, 4 Unknown, 0 Unchecked, 30.0s Time] [2021-12-07 01:45:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7857 states. [2021-12-07 01:45:43,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7857 to 7327. [2021-12-07 01:45:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 4499 states have (on average 1.2478328517448323) internal successors, (5614), 4733 states have internal predecessors, (5614), 2288 states have call successors, (2288), 477 states have call predecessors, (2288), 539 states have return successors, (2535), 2262 states have call predecessors, (2535), 2261 states have call successors, (2535) [2021-12-07 01:45:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 10437 transitions. [2021-12-07 01:45:43,569 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 10437 transitions. Word has length 20 [2021-12-07 01:45:43,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:45:43,569 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 10437 transitions. [2021-12-07 01:45:43,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:45:43,569 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 10437 transitions. [2021-12-07 01:45:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-07 01:45:43,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:45:43,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:43,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:45:43,570 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:45:43,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:43,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1780387648, now seen corresponding path program 1 times [2021-12-07 01:45:43,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:43,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322151012] [2021-12-07 01:45:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:43,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:45:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:45:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:44,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:45:44,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:44,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322151012] [2021-12-07 01:45:44,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322151012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:45:44,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:45:44,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:45:44,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812859246] [2021-12-07 01:45:44,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:45:44,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:45:44,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:44,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:45:44,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:45:44,018 INFO L87 Difference]: Start difference. First operand 7327 states and 10437 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:45:45,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:47,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:55,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:02,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:04,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:07,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:10,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:18,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:18,636 INFO L93 Difference]: Finished difference Result 7873 states and 11286 transitions. [2021-12-07 01:46:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:46:18,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-12-07 01:46:18,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:18,679 INFO L225 Difference]: With dead ends: 7873 [2021-12-07 01:46:18,679 INFO L226 Difference]: Without dead ends: 7869 [2021-12-07 01:46:18,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:46:18,682 INFO L933 BasicCegarLoop]: 4324 mSDtfsCounter, 6259 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 3220 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6900 SdHoareTripleChecker+Valid, 4921 SdHoareTripleChecker+Invalid, 6557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3220 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:18,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6900 Valid, 4921 Invalid, 6557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3220 Valid, 3333 Invalid, 4 Unknown, 0 Unchecked, 33.9s Time] [2021-12-07 01:46:18,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2021-12-07 01:46:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7337. [2021-12-07 01:46:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7337 states, 4507 states have (on average 1.24672731306856) internal successors, (5619), 4739 states have internal predecessors, (5619), 2286 states have call successors, (2286), 481 states have call predecessors, (2286), 543 states have return successors, (2535), 2262 states have call predecessors, (2535), 2261 states have call successors, (2535) [2021-12-07 01:46:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7337 states to 7337 states and 10440 transitions. [2021-12-07 01:46:19,066 INFO L78 Accepts]: Start accepts. Automaton has 7337 states and 10440 transitions. Word has length 21 [2021-12-07 01:46:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:19,066 INFO L470 AbstractCegarLoop]: Abstraction has 7337 states and 10440 transitions. [2021-12-07 01:46:19,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:46:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 7337 states and 10440 transitions. [2021-12-07 01:46:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 01:46:19,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:19,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:46:19,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:46:19,068 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:46:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:19,068 INFO L85 PathProgramCache]: Analyzing trace with hash 639359532, now seen corresponding path program 1 times [2021-12-07 01:46:19,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:46:19,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232029526] [2021-12-07 01:46:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:19,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:46:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:46:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:46:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:46:19,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:46:19,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232029526] [2021-12-07 01:46:19,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232029526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:19,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:19,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:46:19,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311111418] [2021-12-07 01:46:19,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:19,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:46:19,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:46:19,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:46:19,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:46:19,530 INFO L87 Difference]: Start difference. First operand 7337 states and 10440 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:46:21,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:23,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:30,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:42,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:46,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:49,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:51,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:59,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:02,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:47:26,757 INFO L93 Difference]: Finished difference Result 22589 states and 34188 transitions. [2021-12-07 01:47:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:47:26,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-12-07 01:47:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:47:26,822 INFO L225 Difference]: With dead ends: 22589 [2021-12-07 01:47:26,822 INFO L226 Difference]: Without dead ends: 15265 [2021-12-07 01:47:26,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:47:26,855 INFO L933 BasicCegarLoop]: 5471 mSDtfsCounter, 7923 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 8568 mSolverCounterSat, 4466 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8971 SdHoareTripleChecker+Valid, 8366 SdHoareTripleChecker+Invalid, 13041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4466 IncrementalHoareTripleChecker+Valid, 8568 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:47:26,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8971 Valid, 8366 Invalid, 13041 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4466 Valid, 8568 Invalid, 7 Unknown, 0 Unchecked, 65.8s Time] [2021-12-07 01:47:26,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15265 states. [2021-12-07 01:47:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15265 to 15156. [2021-12-07 01:47:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15156 states, 9315 states have (on average 1.2419753086419754) internal successors, (11569), 9802 states have internal predecessors, (11569), 4645 states have call successors, (4645), 954 states have call predecessors, (4645), 1195 states have return successors, (6387), 4699 states have call predecessors, (6387), 4598 states have call successors, (6387) [2021-12-07 01:47:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15156 states to 15156 states and 22601 transitions. [2021-12-07 01:47:27,635 INFO L78 Accepts]: Start accepts. Automaton has 15156 states and 22601 transitions. Word has length 22 [2021-12-07 01:47:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:47:27,635 INFO L470 AbstractCegarLoop]: Abstraction has 15156 states and 22601 transitions. [2021-12-07 01:47:27,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:47:27,635 INFO L276 IsEmpty]: Start isEmpty. Operand 15156 states and 22601 transitions. [2021-12-07 01:47:27,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-07 01:47:27,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:47:27,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:47:27,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:47:27,636 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:47:27,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:47:27,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1657884349, now seen corresponding path program 1 times [2021-12-07 01:47:27,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:47:27,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804453662] [2021-12-07 01:47:27,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:47:27,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:47:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:28,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:47:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:47:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:47:28,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:47:28,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804453662] [2021-12-07 01:47:28,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804453662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:47:28,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:47:28,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:47:28,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751967230] [2021-12-07 01:47:28,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:47:28,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:47:28,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:47:28,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:47:28,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:47:28,088 INFO L87 Difference]: Start difference. First operand 15156 states and 22601 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:47:29,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:31,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:39,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:45,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:48,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:50,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:53,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:48:00,869 INFO L93 Difference]: Finished difference Result 15479 states and 22980 transitions. [2021-12-07 01:48:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:48:00,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-12-07 01:48:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:48:00,927 INFO L225 Difference]: With dead ends: 15479 [2021-12-07 01:48:00,927 INFO L226 Difference]: Without dead ends: 15475 [2021-12-07 01:48:00,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:48:00,935 INFO L933 BasicCegarLoop]: 4348 mSDtfsCounter, 6247 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 3216 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6884 SdHoareTripleChecker+Valid, 4978 SdHoareTripleChecker+Invalid, 6603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3216 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:48:00,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6884 Valid, 4978 Invalid, 6603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3216 Valid, 3384 Invalid, 3 Unknown, 0 Unchecked, 31.8s Time] [2021-12-07 01:48:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15475 states. [2021-12-07 01:48:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15475 to 15386. [2021-12-07 01:48:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15386 states, 9475 states have (on average 1.2386279683377308) internal successors, (11736), 9964 states have internal predecessors, (11736), 4659 states have call successors, (4659), 1010 states have call predecessors, (4659), 1251 states have return successors, (6403), 4715 states have call predecessors, (6403), 4614 states have call successors, (6403) [2021-12-07 01:48:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15386 states to 15386 states and 22798 transitions. [2021-12-07 01:48:01,746 INFO L78 Accepts]: Start accepts. Automaton has 15386 states and 22798 transitions. Word has length 23 [2021-12-07 01:48:01,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:48:01,747 INFO L470 AbstractCegarLoop]: Abstraction has 15386 states and 22798 transitions. [2021-12-07 01:48:01,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:48:01,747 INFO L276 IsEmpty]: Start isEmpty. Operand 15386 states and 22798 transitions. [2021-12-07 01:48:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-07 01:48:01,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:48:01,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:48:01,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:48:01,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:48:01,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:48:01,748 INFO L85 PathProgramCache]: Analyzing trace with hash 142004239, now seen corresponding path program 1 times [2021-12-07 01:48:01,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:48:01,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738916485] [2021-12-07 01:48:01,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:48:01,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:48:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:48:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:48:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:48:02,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:48:02,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738916485] [2021-12-07 01:48:02,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738916485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:48:02,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:48:02,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:48:02,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033556384] [2021-12-07 01:48:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:48:02,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:48:02,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:48:02,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:48:02,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:48:02,106 INFO L87 Difference]: Start difference. First operand 15386 states and 22798 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:48:04,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:06,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:14,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:19,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:23,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:25,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:27,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:36,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:48:36,748 INFO L93 Difference]: Finished difference Result 16241 states and 24157 transitions. [2021-12-07 01:48:36,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:48:36,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2021-12-07 01:48:36,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:48:36,800 INFO L225 Difference]: With dead ends: 16241 [2021-12-07 01:48:36,800 INFO L226 Difference]: Without dead ends: 16237 [2021-12-07 01:48:36,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:48:36,805 INFO L933 BasicCegarLoop]: 4466 mSDtfsCounter, 6126 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 3336 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6666 SdHoareTripleChecker+Valid, 5309 SdHoareTripleChecker+Invalid, 6651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3336 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:48:36,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6666 Valid, 5309 Invalid, 6651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3336 Valid, 3310 Invalid, 5 Unknown, 0 Unchecked, 33.5s Time] [2021-12-07 01:48:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16237 states. [2021-12-07 01:48:37,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16237 to 15816. [2021-12-07 01:48:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15816 states, 9745 states have (on average 1.2374551051821447) internal successors, (12059), 10240 states have internal predecessors, (12059), 4765 states have call successors, (4765), 1060 states have call predecessors, (4765), 1305 states have return successors, (6575), 4827 states have call predecessors, (6575), 4722 states have call successors, (6575) [2021-12-07 01:48:37,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15816 states to 15816 states and 23399 transitions. [2021-12-07 01:48:37,586 INFO L78 Accepts]: Start accepts. Automaton has 15816 states and 23399 transitions. Word has length 24 [2021-12-07 01:48:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:48:37,586 INFO L470 AbstractCegarLoop]: Abstraction has 15816 states and 23399 transitions. [2021-12-07 01:48:37,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:48:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 15816 states and 23399 transitions. [2021-12-07 01:48:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 01:48:37,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:48:37,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:48:37,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:48:37,587 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:48:37,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:48:37,588 INFO L85 PathProgramCache]: Analyzing trace with hash 103980486, now seen corresponding path program 1 times [2021-12-07 01:48:37,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:48:37,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520815504] [2021-12-07 01:48:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:48:37,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:48:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:48:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:48:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:48:37,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:48:37,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520815504] [2021-12-07 01:48:37,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520815504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:48:37,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:48:37,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:48:37,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637669383] [2021-12-07 01:48:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:48:37,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:48:37,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:48:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:48:37,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:48:37,974 INFO L87 Difference]: Start difference. First operand 15816 states and 23399 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:48:40,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:42,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:52,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:58,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:00,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:02,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:05,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:49:12,842 INFO L93 Difference]: Finished difference Result 16257 states and 24175 transitions. [2021-12-07 01:49:12,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:49:12,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-12-07 01:49:12,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:49:12,901 INFO L225 Difference]: With dead ends: 16257 [2021-12-07 01:49:12,901 INFO L226 Difference]: Without dead ends: 16254 [2021-12-07 01:49:12,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:49:12,910 INFO L933 BasicCegarLoop]: 4309 mSDtfsCounter, 6249 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 3157 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6934 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 6501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3157 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:49:12,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6934 Valid, 4899 Invalid, 6501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3157 Valid, 3338 Invalid, 6 Unknown, 0 Unchecked, 33.7s Time] [2021-12-07 01:49:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16254 states. [2021-12-07 01:49:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16254 to 15815. [2021-12-07 01:49:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15815 states, 9745 states have (on average 1.2373524884556182) internal successors, (12058), 10239 states have internal predecessors, (12058), 4764 states have call successors, (4764), 1060 states have call predecessors, (4764), 1305 states have return successors, (6575), 4827 states have call predecessors, (6575), 4722 states have call successors, (6575) [2021-12-07 01:49:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15815 states to 15815 states and 23397 transitions. [2021-12-07 01:49:13,773 INFO L78 Accepts]: Start accepts. Automaton has 15815 states and 23397 transitions. Word has length 25 [2021-12-07 01:49:13,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:49:13,773 INFO L470 AbstractCegarLoop]: Abstraction has 15815 states and 23397 transitions. [2021-12-07 01:49:13,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:49:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15815 states and 23397 transitions. [2021-12-07 01:49:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-07 01:49:13,774 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:49:13,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:49:13,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:49:13,774 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:49:13,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:49:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1074750990, now seen corresponding path program 1 times [2021-12-07 01:49:13,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:49:13,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544246588] [2021-12-07 01:49:13,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:49:13,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:49:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:14,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:49:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:49:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:49:14,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:49:14,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544246588] [2021-12-07 01:49:14,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544246588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:49:14,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:49:14,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:49:14,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625246441] [2021-12-07 01:49:14,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:49:14,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:49:14,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:49:14,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:49:14,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:49:14,110 INFO L87 Difference]: Start difference. First operand 15815 states and 23397 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:49:15,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:17,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:30,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:42,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:45,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:47,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:49,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:53,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:01,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:14,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:16,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:19,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:50:22,942 INFO L93 Difference]: Finished difference Result 46283 states and 74064 transitions. [2021-12-07 01:50:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:50:22,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2021-12-07 01:50:22,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:50:23,039 INFO L225 Difference]: With dead ends: 46283 [2021-12-07 01:50:23,039 INFO L226 Difference]: Without dead ends: 30481 [2021-12-07 01:50:23,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:50:23,109 INFO L933 BasicCegarLoop]: 5248 mSDtfsCounter, 7918 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 7958 mSolverCounterSat, 4293 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8992 SdHoareTripleChecker+Valid, 6971 SdHoareTripleChecker+Invalid, 12259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4293 IncrementalHoareTripleChecker+Valid, 7958 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:50:23,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8992 Valid, 6971 Invalid, 12259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4293 Valid, 7958 Invalid, 8 Unknown, 0 Unchecked, 66.4s Time] [2021-12-07 01:50:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30481 states. [2021-12-07 01:50:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30481 to 29566. [2021-12-07 01:50:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29566 states, 18213 states have (on average 1.2346675451600506) internal successors, (22487), 19142 states have internal predecessors, (22487), 8825 states have call successors, (8825), 2059 states have call predecessors, (8825), 2527 states have return successors, (14022), 8946 states have call predecessors, (14022), 8760 states have call successors, (14022) [2021-12-07 01:50:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29566 states to 29566 states and 45334 transitions. [2021-12-07 01:50:24,756 INFO L78 Accepts]: Start accepts. Automaton has 29566 states and 45334 transitions. Word has length 26 [2021-12-07 01:50:24,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:50:24,756 INFO L470 AbstractCegarLoop]: Abstraction has 29566 states and 45334 transitions. [2021-12-07 01:50:24,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:50:24,756 INFO L276 IsEmpty]: Start isEmpty. Operand 29566 states and 45334 transitions. [2021-12-07 01:50:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-07 01:50:24,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:50:24,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:50:24,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:50:24,758 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:50:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:50:24,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1039283785, now seen corresponding path program 1 times [2021-12-07 01:50:24,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:50:24,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843641450] [2021-12-07 01:50:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:50:24,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:50:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:50:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:50:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:50:25,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:50:25,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843641450] [2021-12-07 01:50:25,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843641450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:50:25,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:50:25,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:50:25,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174634864] [2021-12-07 01:50:25,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:50:25,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:50:25,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:50:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:50:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:50:25,102 INFO L87 Difference]: Start difference. First operand 29566 states and 45334 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:50:26,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:27,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:36,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:43,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:46,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:48,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:50,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:50:58,923 INFO L93 Difference]: Finished difference Result 30442 states and 46941 transitions. [2021-12-07 01:50:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:50:58,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-12-07 01:50:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:50:59,038 INFO L225 Difference]: With dead ends: 30442 [2021-12-07 01:50:59,038 INFO L226 Difference]: Without dead ends: 30439 [2021-12-07 01:50:59,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:50:59,055 INFO L933 BasicCegarLoop]: 4303 mSDtfsCounter, 6244 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3337 mSolverCounterSat, 3154 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6931 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 6495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3154 IncrementalHoareTripleChecker+Valid, 3337 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:50:59,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6931 Valid, 4893 Invalid, 6495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3154 Valid, 3337 Invalid, 4 Unknown, 0 Unchecked, 31.9s Time] [2021-12-07 01:50:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30439 states. [2021-12-07 01:51:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30439 to 29565. [2021-12-07 01:51:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29565 states, 18213 states have (on average 1.2346126393235601) internal successors, (22486), 19141 states have internal predecessors, (22486), 8824 states have call successors, (8824), 2059 states have call predecessors, (8824), 2527 states have return successors, (14022), 8946 states have call predecessors, (14022), 8760 states have call successors, (14022) [2021-12-07 01:51:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29565 states to 29565 states and 45332 transitions. [2021-12-07 01:51:00,790 INFO L78 Accepts]: Start accepts. Automaton has 29565 states and 45332 transitions. Word has length 27 [2021-12-07 01:51:00,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:51:00,790 INFO L470 AbstractCegarLoop]: Abstraction has 29565 states and 45332 transitions. [2021-12-07 01:51:00,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:51:00,790 INFO L276 IsEmpty]: Start isEmpty. Operand 29565 states and 45332 transitions. [2021-12-07 01:51:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 01:51:00,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:51:00,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:51:00,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:51:00,791 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:51:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:51:00,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2145110059, now seen corresponding path program 1 times [2021-12-07 01:51:00,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:51:00,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562945447] [2021-12-07 01:51:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:51:00,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:51:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:51:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:51:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:51:01,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:51:01,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562945447] [2021-12-07 01:51:01,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562945447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:51:01,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:51:01,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:51:01,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478513490] [2021-12-07 01:51:01,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:51:01,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:51:01,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:51:01,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:51:01,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:51:01,260 INFO L87 Difference]: Start difference. First operand 29565 states and 45332 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:51:02,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:04,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:17,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:23,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:30,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:32,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:36,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:38,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:50,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:56,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:58,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:00,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:03,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:52:13,840 INFO L93 Difference]: Finished difference Result 87002 states and 149101 transitions. [2021-12-07 01:52:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:52:13,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-12-07 01:52:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:52:14,124 INFO L225 Difference]: With dead ends: 87002 [2021-12-07 01:52:14,124 INFO L226 Difference]: Without dead ends: 57450 [2021-12-07 01:52:14,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:52:14,273 INFO L933 BasicCegarLoop]: 5397 mSDtfsCounter, 7731 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 7877 mSolverCounterSat, 4097 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8777 SdHoareTripleChecker+Valid, 7060 SdHoareTripleChecker+Invalid, 11985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4097 IncrementalHoareTripleChecker+Valid, 7877 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:52:14,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8777 Valid, 7060 Invalid, 11985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4097 Valid, 7877 Invalid, 11 Unknown, 0 Unchecked, 68.4s Time] [2021-12-07 01:52:14,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57450 states. [2021-12-07 01:52:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57450 to 55678. [2021-12-07 01:52:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55678 states, 34370 states have (on average 1.2345359324992726) internal successors, (42431), 36158 states have internal predecessors, (42431), 16396 states have call successors, (16396), 4010 states have call predecessors, (16396), 4911 states have return successors, (31257), 16617 states have call predecessors, (31257), 16295 states have call successors, (31257) [2021-12-07 01:52:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55678 states to 55678 states and 90084 transitions. [2021-12-07 01:52:17,804 INFO L78 Accepts]: Start accepts. Automaton has 55678 states and 90084 transitions. Word has length 28 [2021-12-07 01:52:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:52:17,804 INFO L470 AbstractCegarLoop]: Abstraction has 55678 states and 90084 transitions. [2021-12-07 01:52:17,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:52:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 55678 states and 90084 transitions. [2021-12-07 01:52:17,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-07 01:52:17,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:52:17,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:52:17,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:52:17,806 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:52:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:52:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2077066548, now seen corresponding path program 1 times [2021-12-07 01:52:17,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:52:17,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070281042] [2021-12-07 01:52:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:52:17,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:52:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:52:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:52:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:52:18,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:52:18,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070281042] [2021-12-07 01:52:18,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070281042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:52:18,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:52:18,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:52:18,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620485581] [2021-12-07 01:52:18,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:52:18,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:52:18,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:52:18,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:52:18,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:52:18,153 INFO L87 Difference]: Start difference. First operand 55678 states and 90084 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:52:19,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:20,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:29,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:36,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:38,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:40,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:43,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:52:52,924 INFO L93 Difference]: Finished difference Result 57360 states and 93291 transitions. [2021-12-07 01:52:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:52:52,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2021-12-07 01:52:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:52:53,172 INFO L225 Difference]: With dead ends: 57360 [2021-12-07 01:52:53,172 INFO L226 Difference]: Without dead ends: 57357 [2021-12-07 01:52:53,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:52:53,198 INFO L933 BasicCegarLoop]: 4302 mSDtfsCounter, 6238 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 3151 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6924 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 6490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3151 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:52:53,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6924 Valid, 4892 Invalid, 6490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3151 Valid, 3335 Invalid, 4 Unknown, 0 Unchecked, 31.4s Time] [2021-12-07 01:52:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57357 states. [2021-12-07 01:52:56,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57357 to 55677. [2021-12-07 01:52:56,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55677 states, 34370 states have (on average 1.2345068373581611) internal successors, (42430), 36157 states have internal predecessors, (42430), 16395 states have call successors, (16395), 4010 states have call predecessors, (16395), 4911 states have return successors, (31257), 16617 states have call predecessors, (31257), 16295 states have call successors, (31257) [2021-12-07 01:52:56,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55677 states to 55677 states and 90082 transitions. [2021-12-07 01:52:56,884 INFO L78 Accepts]: Start accepts. Automaton has 55677 states and 90082 transitions. Word has length 29 [2021-12-07 01:52:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:52:56,885 INFO L470 AbstractCegarLoop]: Abstraction has 55677 states and 90082 transitions. [2021-12-07 01:52:56,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:52:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 55677 states and 90082 transitions. [2021-12-07 01:52:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:52:56,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:52:56,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:52:56,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:52:56,886 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:52:56,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:52:56,886 INFO L85 PathProgramCache]: Analyzing trace with hash 32287160, now seen corresponding path program 1 times [2021-12-07 01:52:56,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:52:56,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024809270] [2021-12-07 01:52:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:52:56,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:52:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:52:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:52:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:52:57,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:52:57,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024809270] [2021-12-07 01:52:57,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024809270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:52:57,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:52:57,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:52:57,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623022200] [2021-12-07 01:52:57,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:52:57,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:52:57,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:52:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:52:57,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:52:57,284 INFO L87 Difference]: Start difference. First operand 55677 states and 90082 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:52:58,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:00,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:09,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:17,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:20,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:22,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:25,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:53:35,041 INFO L93 Difference]: Finished difference Result 57359 states and 93289 transitions. [2021-12-07 01:53:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:53:35,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-12-07 01:53:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:53:35,258 INFO L225 Difference]: With dead ends: 57359 [2021-12-07 01:53:35,258 INFO L226 Difference]: Without dead ends: 57339 [2021-12-07 01:53:35,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:53:35,282 INFO L933 BasicCegarLoop]: 4299 mSDtfsCounter, 6235 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3331 mSolverCounterSat, 3149 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6923 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 6485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3149 IncrementalHoareTripleChecker+Valid, 3331 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:53:35,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6923 Valid, 4889 Invalid, 6485 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3149 Valid, 3331 Invalid, 5 Unknown, 0 Unchecked, 34.2s Time] [2021-12-07 01:53:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57339 states. [2021-12-07 01:53:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57339 to 55659. [2021-12-07 01:53:38,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55659 states, 34355 states have (on average 1.2344636879639064) internal successors, (42410), 36141 states have internal predecessors, (42410), 16392 states have call successors, (16392), 4009 states have call predecessors, (16392), 4911 states have return successors, (31256), 16616 states have call predecessors, (31256), 16294 states have call successors, (31256) [2021-12-07 01:53:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55659 states to 55659 states and 90058 transitions. [2021-12-07 01:53:38,865 INFO L78 Accepts]: Start accepts. Automaton has 55659 states and 90058 transitions. Word has length 30 [2021-12-07 01:53:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:53:38,865 INFO L470 AbstractCegarLoop]: Abstraction has 55659 states and 90058 transitions. [2021-12-07 01:53:38,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 01:53:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 55659 states and 90058 transitions. [2021-12-07 01:53:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-07 01:53:38,868 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:53:38,869 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:53:38,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 01:53:38,869 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:53:38,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:53:38,869 INFO L85 PathProgramCache]: Analyzing trace with hash -605590712, now seen corresponding path program 1 times [2021-12-07 01:53:38,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:53:38,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599124568] [2021-12-07 01:53:38,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:38,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:53:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:53:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:53:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-07 01:53:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-07 01:53:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:53:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:53:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-07 01:53:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:53:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:53:39,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:53:39,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599124568] [2021-12-07 01:53:39,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599124568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:53:39,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:53:39,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:53:39,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217973979] [2021-12-07 01:53:39,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:53:39,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:53:39,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:53:39,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:53:39,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:53:39,583 INFO L87 Difference]: Start difference. First operand 55659 states and 90058 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 01:53:41,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:43,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:45,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:47,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:53:54,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:15,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:25,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:34,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:36,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:40,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:42,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:44,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:46,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:14,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:17,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:21,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:33,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:40,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:55:40,735 INFO L93 Difference]: Finished difference Result 122280 states and 210295 transitions. [2021-12-07 01:55:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:55:40,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2021-12-07 01:55:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:55:41,083 INFO L225 Difference]: With dead ends: 122280 [2021-12-07 01:55:41,083 INFO L226 Difference]: Without dead ends: 68446 [2021-12-07 01:55:41,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:55:41,347 INFO L933 BasicCegarLoop]: 7551 mSDtfsCounter, 7981 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 15635 mSolverCounterSat, 9652 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8496 SdHoareTripleChecker+Valid, 11866 SdHoareTripleChecker+Invalid, 25300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9652 IncrementalHoareTripleChecker+Valid, 15635 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.5s IncrementalHoareTripleChecker+Time [2021-12-07 01:55:41,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8496 Valid, 11866 Invalid, 25300 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9652 Valid, 15635 Invalid, 13 Unknown, 0 Unchecked, 114.5s Time] [2021-12-07 01:55:41,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68446 states. [2021-12-07 01:55:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68446 to 56478. [2021-12-07 01:55:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56478 states, 35204 states have (on average 1.2339222815589137) internal successors, (43439), 36946 states have internal predecessors, (43439), 16008 states have call successors, (16008), 3911 states have call predecessors, (16008), 5265 states have return successors, (28429), 16632 states have call predecessors, (28429), 15905 states have call successors, (28429) [2021-12-07 01:55:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56478 states to 56478 states and 87876 transitions. [2021-12-07 01:55:45,509 INFO L78 Accepts]: Start accepts. Automaton has 56478 states and 87876 transitions. Word has length 71 [2021-12-07 01:55:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:55:45,509 INFO L470 AbstractCegarLoop]: Abstraction has 56478 states and 87876 transitions. [2021-12-07 01:55:45,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-07 01:55:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 56478 states and 87876 transitions. [2021-12-07 01:55:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-07 01:55:45,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:55:45,514 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:55:45,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 01:55:45,514 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:55:45,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:55:45,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1920896618, now seen corresponding path program 1 times [2021-12-07 01:55:45,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:55:45,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721246413] [2021-12-07 01:55:45,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:55:45,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:55:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 01:55:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-07 01:55:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-07 01:55:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:55:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-07 01:55:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-07 01:55:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-07 01:55:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:55:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-07 01:55:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:55:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-07 01:55:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:55:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-07 01:55:46,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:55:46,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721246413] [2021-12-07 01:55:46,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721246413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:55:46,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:55:46,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:55:46,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156786787] [2021-12-07 01:55:46,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:55:46,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:55:46,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:55:46,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:55:46,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:55:46,287 INFO L87 Difference]: Start difference. First operand 56478 states and 87876 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-07 01:55:47,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:49,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:51,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:55:58,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []