./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro --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 ff02e03a986f1a19fc84bb8ebf84ed80dd5601fff7cc4c17c4d87ec97b443afa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:08:21,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:08:21,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:08:21,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:08:21,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:08:22,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:08:22,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:08:22,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:08:22,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:08:22,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:08:22,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:08:22,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:08:22,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:08:22,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:08:22,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:08:22,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:08:22,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:08:22,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:08:22,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:08:22,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:08:22,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:08:22,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:08:22,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:08:22,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:08:22,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:08:22,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:08:22,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:08:22,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:08:22,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:08:22,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:08:22,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:08:22,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:08:22,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:08:22,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:08:22,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:08:22,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:08:22,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:08:22,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:08:22,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:08:22,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:08:22,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:08:22,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:08:22,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:08:22,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:08:22,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:08:22,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:08:22,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:08:22,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:08:22,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:08:22,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:08:22,123 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:08:22,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:08:22,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:08:22,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:08:22,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:08:22,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:08:22,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:08:22,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:08:22,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:08:22,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:08:22,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:08:22,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:08:22,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:08:22,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:22,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:08:22,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:08:22,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:08:22,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:08:22,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:08:22,129 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:08:22,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:08:22,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:08:22,130 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_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff02e03a986f1a19fc84bb8ebf84ed80dd5601fff7cc4c17c4d87ec97b443afa [2022-11-18 20:08:22,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:08:22,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:08:22,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:08:22,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:08:22,466 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:08:22,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2022-11-18 20:08:22,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/data/7dc257bed/35f09c3b19f84a618ffd424093801f5d/FLAG7f6aaf16e [2022-11-18 20:08:23,698 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:08:23,699 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2022-11-18 20:08:23,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/data/7dc257bed/35f09c3b19f84a618ffd424093801f5d/FLAG7f6aaf16e [2022-11-18 20:08:23,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/data/7dc257bed/35f09c3b19f84a618ffd424093801f5d [2022-11-18 20:08:23,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:08:23,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:08:23,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:23,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:08:23,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:08:23,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:23" (1/1) ... [2022-11-18 20:08:23,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e16ed33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:23, skipping insertion in model container [2022-11-18 20:08:23,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:23" (1/1) ... [2022-11-18 20:08:23,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:08:24,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:08:30,363 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[636672,636685] [2022-11-18 20:08:30,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:30,543 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:08:31,254 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i[636672,636685] [2022-11-18 20:08:31,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:31,576 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:08:31,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31 WrapperNode [2022-11-18 20:08:31,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:31,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:31,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:08:31,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:08:31,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:31,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,267 INFO L138 Inliner]: procedures = 662, calls = 8739, calls flagged for inlining = 271, calls inlined = 268, statements flattened = 15933 [2022-11-18 20:08:32,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:32,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:08:32,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:08:32,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:08:32,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:32,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:33,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:33,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:08:33,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:08:33,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:08:33,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:08:33,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (1/1) ... [2022-11-18 20:08:33,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:33,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:33,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:08:33,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:08:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-18 20:08:33,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-18 20:08:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32_locked [2022-11-18 20:08:33,352 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32_locked [2022-11-18 20:08:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_info_clear_status [2022-11-18 20:08:33,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_info_clear_status [2022-11-18 20:08:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure zd_check_signal [2022-11-18 20:08:33,352 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_check_signal [2022-11-18 20:08:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 20:08:33,353 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 20:08:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-18 20:08:33,353 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-18 20:08:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-18 20:08:33,353 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-18 20:08:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure post_reset [2022-11-18 20:08:33,354 INFO L138 BoogieDeclarations]: Found implementation of procedure post_reset [2022-11-18 20:08:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-18 20:08:33,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-18 20:08:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_init_hw [2022-11-18 20:08:33,355 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_init_hw [2022-11-18 20:08:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:08:33,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:08:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-18 20:08:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-18 20:08:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_usbdev [2022-11-18 20:08:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_usbdev [2022-11-18 20:08:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-18 20:08:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-18 20:08:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_rx [2022-11-18 20:08:33,357 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_rx [2022-11-18 20:08:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_channel [2022-11-18 20:08:33,357 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_channel [2022-11-18 20:08:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_clear [2022-11-18 20:08:33,358 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_clear [2022-11-18 20:08:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_off [2022-11-18 20:08:33,358 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_off [2022-11-18 20:08:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_urb [2022-11-18 20:08:33,358 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_urb [2022-11-18 20:08:33,358 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_configure_filter [2022-11-18 20:08:33,359 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_configure_filter [2022-11-18 20:08:33,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-11-18 20:08:33,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-11-18 20:08:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:08:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:08:33,360 INFO L130 BoogieDeclarations]: Found specification of procedure fw_reg_addr [2022-11-18 20:08:33,360 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_reg_addr [2022-11-18 20:08:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get [2022-11-18 20:08:33,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get [2022-11-18 20:08:33,361 INFO L130 BoogieDeclarations]: Found specification of procedure zd_switch_radio_on [2022-11-18 20:08:33,361 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_switch_radio_on [2022-11-18 20:08:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 20:08:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_config [2022-11-18 20:08:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_config [2022-11-18 20:08:33,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-18 20:08:33,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-18 20:08:33,363 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_init_mode [2022-11-18 20:08:33,363 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_init_mode [2022-11-18 20:08:33,364 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-18 20:08:33,365 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-18 20:08:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_hwint [2022-11-18 20:08:33,365 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_hwint [2022-11-18 20:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:08:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_lock_phy_regs [2022-11-18 20:08:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_lock_phy_regs [2022-11-18 20:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 20:08:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 20:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_to_chip [2022-11-18 20:08:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_to_chip [2022-11-18 20:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon_locked [2022-11-18 20:08:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon_locked [2022-11-18 20:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_first [2022-11-18 20:08:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_first [2022-11-18 20:08:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async [2022-11-18 20:08:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async [2022-11-18 20:08:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-18 20:08:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-18 20:08:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 20:08:33,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 20:08:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_locked [2022-11-18 20:08:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_locked [2022-11-18 20:08:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-18 20:08:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-18 20:08:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:08:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 20:08:33,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 20:08:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:08:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2022-11-18 20:08:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2022-11-18 20:08:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_free_cur_beacon [2022-11-18 20:08:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_free_cur_beacon [2022-11-18 20:08:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure beacon_watchdog_handler [2022-11-18 20:08:33,380 INFO L138 BoogieDeclarations]: Found implementation of procedure beacon_watchdog_handler [2022-11-18 20:08:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_remove_interface [2022-11-18 20:08:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_remove_interface [2022-11-18 20:08:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:08:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure check_read_regs [2022-11-18 20:08:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure check_read_regs [2022-11-18 20:08:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_clear [2022-11-18 20:08:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_clear [2022-11-18 20:08:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx_packet [2022-11-18 20:08:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx_packet [2022-11-18 20:08:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_stop [2022-11-18 20:08:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_stop [2022-11-18 20:08:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32a_locked [2022-11-18 20:08:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32a_locked [2022-11-18 20:08:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al7230b_finalize [2022-11-18 20:08:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al7230b_finalize [2022-11-18 20:08:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:08:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:08:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16_locked [2022-11-18 20:08:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16_locked [2022-11-18 20:08:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-18 20:08:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-18 20:08:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 20:08:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 20:08:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure test_init [2022-11-18 20:08:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test_init [2022-11-18 20:08:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-11-18 20:08:33,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-11-18 20:08:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure request_fw_file [2022-11-18 20:08:33,399 INFO L138 BoogieDeclarations]: Found implementation of procedure request_fw_file [2022-11-18 20:08:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure dump_cr [2022-11-18 20:08:33,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_cr [2022-11-18 20:08:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2022-11-18 20:08:33,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2022-11-18 20:08:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mc_clear [2022-11-18 20:08:33,400 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mc_clear [2022-11-18 20:08:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 20:08:33,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 20:08:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-18 20:08:33,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-18 20:08:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:08:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr_common [2022-11-18 20:08:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr_common [2022-11-18 20:08:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-18 20:08:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_prepare_multicast [2022-11-18 20:08:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_prepare_multicast [2022-11-18 20:08:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-18 20:08:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-18 20:08:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_tx [2022-11-18 20:08:33,402 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_tx [2022-11-18 20:08:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_hw [2022-11-18 20:08:33,402 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_hw [2022-11-18 20:08:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:08:33,402 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-18 20:08:33,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-18 20:08:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16 [2022-11-18 20:08:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16 [2022-11-18 20:08:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:08:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_resume [2022-11-18 20:08:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_resume [2022-11-18 20:08:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 20:08:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:08:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:08:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 20:08:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 20:08:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread32v_locked [2022-11-18 20:08:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread32v_locked [2022-11-18 20:08:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_name [2022-11-18 20:08:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_name [2022-11-18 20:08:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:08:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:08:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_is_zd1211b [2022-11-18 20:08:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_is_zd1211b [2022-11-18 20:08:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-18 20:08:33,405 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-18 20:08:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure set_beacon_interval [2022-11-18 20:08:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure set_beacon_interval [2022-11-18 20:08:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_filter [2022-11-18 20:08:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_filter [2022-11-18 20:08:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_synth_set_channel [2022-11-18 20:08:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_synth_set_channel [2022-11-18 20:08:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2022-11-18 20:08:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2022-11-18 20:08:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-18 20:08:33,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-18 20:08:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_start [2022-11-18 20:08:33,407 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_start [2022-11-18 20:08:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_rx [2022-11-18 20:08:33,407 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_rx [2022-11-18 20:08:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure zd1211b_al2230_finalize_rf [2022-11-18 20:08:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure zd1211b_al2230_finalize_rf [2022-11-18 20:08:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32_locked [2022-11-18 20:08:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32_locked [2022-11-18 20:08:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure handle_regs_int_override [2022-11-18 20:08:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_regs_int_override [2022-11-18 20:08:33,408 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_set_multicast_hash [2022-11-18 20:08:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_set_multicast_hash [2022-11-18 20:08:33,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 20:08:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 20:08:33,409 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-18 20:08:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-18 20:08:33,409 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwint [2022-11-18 20:08:33,409 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwint [2022-11-18 20:08:33,409 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 20:08:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 20:08:33,410 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_tx_status [2022-11-18 20:08:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_tx_status [2022-11-18 20:08:33,410 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_rxtx [2022-11-18 20:08:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_rxtx [2022-11-18 20:08:33,410 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-18 20:08:33,410 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-18 20:08:33,410 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_unlock_phy_regs [2022-11-18 20:08:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_unlock_phy_regs [2022-11-18 20:08:33,411 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-18 20:08:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-18 20:08:33,411 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 20:08:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 20:08:33,411 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_name [2022-11-18 20:08:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_name [2022-11-18 20:08:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-18 20:08:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-18 20:08:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-18 20:08:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-18 20:08:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_clear [2022-11-18 20:08:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_clear [2022-11-18 20:08:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_locked [2022-11-18 20:08:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_locked [2022-11-18 20:08:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:08:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:08:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2022-11-18 20:08:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2022-11-18 20:08:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_control_leds [2022-11-18 20:08:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_control_leds [2022-11-18 20:08:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-18 20:08:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-18 20:08:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 20:08:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 20:08:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure scnprint_id___0 [2022-11-18 20:08:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprint_id___0 [2022-11-18 20:08:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_pspoll [2022-11-18 20:08:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_pspoll [2022-11-18 20:08:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_iowrite16v_async_end [2022-11-18 20:08:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_iowrite16v_async_end [2022-11-18 20:08:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-18 20:08:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-18 20:08:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:08:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:08:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure upload_code [2022-11-18 20:08:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure upload_code [2022-11-18 20:08:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:08:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:08:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-18 20:08:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-18 20:08:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rx_idle_timer_handler [2022-11-18 20:08:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rx_idle_timer_handler [2022-11-18 20:08:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwrite_cr_locked [2022-11-18 20:08:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwrite_cr_locked [2022-11-18 20:08:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2022-11-18 20:08:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~int [2022-11-18 20:08:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-18 20:08:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-18 20:08:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure set_rts_cts [2022-11-18 20:08:33,435 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rts_cts [2022-11-18 20:08:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_mac [2022-11-18 20:08:33,435 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_mac [2022-11-18 20:08:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_disable_rx [2022-11-18 20:08:33,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_disable_rx [2022-11-18 20:08:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure zd_submit_waiting_urb [2022-11-18 20:08:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_submit_waiting_urb [2022-11-18 20:08:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_stop [2022-11-18 20:08:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_stop [2022-11-18 20:08:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2022-11-18 20:08:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2022-11-18 20:08:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_reset_rx_idle_timer [2022-11-18 20:08:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_reset_rx_idle_timer [2022-11-18 20:08:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 20:08:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 20:08:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-18 20:08:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-18 20:08:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:08:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:08:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-18 20:08:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-18 20:08:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure zd_set_beacon_interval [2022-11-18 20:08:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_set_beacon_interval [2022-11-18 20:08:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-18 20:08:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-18 20:08:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:08:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:08:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcdDevice [2022-11-18 20:08:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcdDevice [2022-11-18 20:08:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_disable_int [2022-11-18 20:08:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_disable_int [2022-11-18 20:08:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:08:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:08:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-18 20:08:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-18 20:08:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:08:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 20:08:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 20:08:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rf_init_hw [2022-11-18 20:08:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rf_init_hw [2022-11-18 20:08:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure __zd_usb_enable_rx [2022-11-18 20:08:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __zd_usb_enable_rx [2022-11-18 20:08:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_regs_length [2022-11-18 20:08:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_regs_length [2022-11-18 20:08:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:08:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-18 20:08:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-18 20:08:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-11-18 20:08:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-11-18 20:08:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-18 20:08:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-18 20:08:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite32 [2022-11-18 20:08:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite32 [2022-11-18 20:08:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:08:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure zd_mac_config_beacon [2022-11-18 20:08:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_mac_config_beacon [2022-11-18 20:08:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-18 20:08:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-18 20:08:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-18 20:08:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-18 20:08:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-18 20:08:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-18 20:08:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 20:08:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 20:08:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-18 20:08:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-18 20:08:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure zd_tx_watchdog_handler [2022-11-18 20:08:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_tx_watchdog_handler [2022-11-18 20:08:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-18 20:08:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-18 20:08:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure zd_hw_mac [2022-11-18 20:08:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_hw_mac [2022-11-18 20:08:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure read_values [2022-11-18 20:08:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure read_values [2022-11-18 20:08:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-18 20:08:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-18 20:08:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-18 20:08:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-18 20:08:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-18 20:08:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-18 20:08:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_start [2022-11-18 20:08:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_start [2022-11-18 20:08:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-18 20:08:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-18 20:08:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect [2022-11-18 20:08:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect [2022-11-18 20:08:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure zd_intf_to_hw [2022-11-18 20:08:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_intf_to_hw [2022-11-18 20:08:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure inc_addr [2022-11-18 20:08:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_addr [2022-11-18 20:08:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-18 20:08:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-18 20:08:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_to_mac [2022-11-18 20:08:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_to_mac [2022-11-18 20:08:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure zd_rfwritev_cr_locked [2022-11-18 20:08:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_rfwritev_cr_locked [2022-11-18 20:08:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure pre_reset [2022-11-18 20:08:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pre_reset [2022-11-18 20:08:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-18 20:08:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-18 20:08:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 20:08:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 20:08:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_on [2022-11-18 20:08:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_on [2022-11-18 20:08:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-18 20:08:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-18 20:08:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:08:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:08:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-11-18 20:08:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-11-18 20:08:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure uw2453_write_vco_cfg [2022-11-18 20:08:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure uw2453_write_vco_cfg [2022-11-18 20:08:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:08:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_switch_radio_off [2022-11-18 20:08:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_switch_radio_off [2022-11-18 20:08:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ep_regs_out_msg [2022-11-18 20:08:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ep_regs_out_msg [2022-11-18 20:08:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 20:08:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 20:08:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:08:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:08:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_to_chip [2022-11-18 20:08:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_to_chip [2022-11-18 20:08:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_hwint [2022-11-18 20:08:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_hwint [2022-11-18 20:08:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_ioread16v [2022-11-18 20:08:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_ioread16v [2022-11-18 20:08:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 20:08:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 20:08:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure zd_usb_init_hw [2022-11-18 20:08:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_usb_init_hw [2022-11-18 20:08:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16_locked [2022-11-18 20:08:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16_locked [2022-11-18 20:08:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_init_hw [2022-11-18 20:08:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_init_hw [2022-11-18 20:08:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_bss_info_changed [2022-11-18 20:08:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_bss_info_changed [2022-11-18 20:08:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-18 20:08:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-18 20:08:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_get_tsf [2022-11-18 20:08:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_get_tsf [2022-11-18 20:08:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_disable_int [2022-11-18 20:08:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_disable_int [2022-11-18 20:08:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure zd_process_intr [2022-11-18 20:08:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_process_intr [2022-11-18 20:08:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-11-18 20:08:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-11-18 20:08:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure link_led_handler [2022-11-18 20:08:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure link_led_handler [2022-11-18 20:08:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-18 20:08:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-18 20:08:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-18 20:08:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-18 20:08:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure zd_ioread16v_locked [2022-11-18 20:08:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_ioread16v_locked [2022-11-18 20:08:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-18 20:08:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-18 20:08:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure zd_chip_enable_int [2022-11-18 20:08:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_chip_enable_int [2022-11-18 20:08:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2022-11-18 20:08:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2022-11-18 20:08:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 20:08:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 20:08:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure _zd_iowrite32v_async_locked [2022-11-18 20:08:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _zd_iowrite32v_async_locked [2022-11-18 20:08:33,472 INFO L130 BoogieDeclarations]: Found specification of procedure set_mac_and_bssid [2022-11-18 20:08:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mac_and_bssid [2022-11-18 20:08:33,472 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_tx [2022-11-18 20:08:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_tx [2022-11-18 20:08:33,472 INFO L130 BoogieDeclarations]: Found specification of procedure zd_op_add_interface [2022-11-18 20:08:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_op_add_interface [2022-11-18 20:08:33,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:08:33,473 INFO L130 BoogieDeclarations]: Found specification of procedure zd_write_mac_addr [2022-11-18 20:08:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_write_mac_addr [2022-11-18 20:08:33,473 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-18 20:08:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-18 20:08:33,473 INFO L130 BoogieDeclarations]: Found specification of procedure zd_iowrite16a_locked [2022-11-18 20:08:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure zd_iowrite16a_locked [2022-11-18 20:08:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-18 20:08:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-18 20:08:35,061 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:08:35,066 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:08:35,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:12:53,450 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:12:53,478 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:12:53,478 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:12:53,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:53 BoogieIcfgContainer [2022-11-18 20:12:53,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:12:53,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:12:53,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:12:53,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:12:53,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:08:23" (1/3) ... [2022-11-18 20:12:53,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72942935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:12:53, skipping insertion in model container [2022-11-18 20:12:53,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:31" (2/3) ... [2022-11-18 20:12:53,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72942935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:12:53, skipping insertion in model container [2022-11-18 20:12:53,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:12:53" (3/3) ... [2022-11-18 20:12:53,498 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--zd1211rw--zd1211rw.ko-entry_point.cil.out.i [2022-11-18 20:12:53,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:12:53,520 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:12:53,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:12:53,700 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c26dba0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:12:53,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:12:53,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 4091 states, 2725 states have (on average 1.3225688073394495) internal successors, (3604), 2828 states have internal predecessors, (3604), 1157 states have call successors, (1157), 208 states have call predecessors, (1157), 207 states have return successors, (1151), 1142 states have call predecessors, (1151), 1151 states have call successors, (1151) [2022-11-18 20:12:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-18 20:12:53,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:12:53,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:12:53,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:12:53,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:53,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1755653581, now seen corresponding path program 1 times [2022-11-18 20:12:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:53,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992989387] [2022-11-18 20:12:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:12:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:12:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:12:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:12:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:12:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:12:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 20:12:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:12:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:55,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992989387] [2022-11-18 20:12:55,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992989387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:12:55,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:12:55,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:12:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905585863] [2022-11-18 20:12:55,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:12:55,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:12:55,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:12:55,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:12:55,578 INFO L87 Difference]: Start difference. First operand has 4091 states, 2725 states have (on average 1.3225688073394495) internal successors, (3604), 2828 states have internal predecessors, (3604), 1157 states have call successors, (1157), 208 states have call predecessors, (1157), 207 states have return successors, (1151), 1142 states have call predecessors, (1151), 1151 states have call successors, (1151) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:13:17,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:18,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:32,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:39,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:42,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:44,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:46,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:48,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:51,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:13:58,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:00,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:02,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:04,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:06,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:09,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:11,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:14,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:16,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:19,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:21,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:14:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:14:23,978 INFO L93 Difference]: Finished difference Result 8894 states and 13486 transitions. [2022-11-18 20:14:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:14:23,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2022-11-18 20:14:23,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:14:24,049 INFO L225 Difference]: With dead ends: 8894 [2022-11-18 20:14:24,050 INFO L226 Difference]: Without dead ends: 4784 [2022-11-18 20:14:24,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:14:24,093 INFO L413 NwaCegarLoop]: 5045 mSDtfsCounter, 1528 mSDsluCounter, 4854 mSDsCounter, 0 mSdLazyCounter, 4158 mSolverCounterSat, 1375 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 9899 SdHoareTripleChecker+Invalid, 5545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1375 IncrementalHoareTripleChecker+Valid, 4158 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:14:24,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 9899 Invalid, 5545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1375 Valid, 4158 Invalid, 12 Unknown, 0 Unchecked, 87.6s Time] [2022-11-18 20:14:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4784 states. [2022-11-18 20:14:24,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4784 to 4068. [2022-11-18 20:14:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4068 states, 2710 states have (on average 1.3166051660516604) internal successors, (3568), 2806 states have internal predecessors, (3568), 1151 states have call successors, (1151), 207 states have call predecessors, (1151), 206 states have return successors, (1149), 1140 states have call predecessors, (1149), 1149 states have call successors, (1149) [2022-11-18 20:14:24,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 5868 transitions. [2022-11-18 20:14:24,415 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 5868 transitions. Word has length 62 [2022-11-18 20:14:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:14:24,416 INFO L495 AbstractCegarLoop]: Abstraction has 4068 states and 5868 transitions. [2022-11-18 20:14:24,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:14:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 5868 transitions. [2022-11-18 20:14:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-18 20:14:24,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:14:24,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:14:24,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:14:24,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:14:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash 510727605, now seen corresponding path program 1 times [2022-11-18 20:14:24,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:24,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876599811] [2022-11-18 20:14:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:24,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:25,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:14:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:14:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:14:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 20:14:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 20:14:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:14:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 20:14:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:14:26,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:26,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876599811] [2022-11-18 20:14:26,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876599811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:26,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:26,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:14:26,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950150137] [2022-11-18 20:14:26,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:26,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:14:26,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:26,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:14:26,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:14:26,221 INFO L87 Difference]: Start difference. First operand 4068 states and 5868 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:15:03,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:14,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:26,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:28,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:32,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:38,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:40,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:42,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:45,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:47,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:50,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:15:58,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:00,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:03,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:06,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:08,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:10,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:12,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:14,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:17,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:20,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:22,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:24,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:16:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:16:25,860 INFO L93 Difference]: Finished difference Result 12248 states and 17936 transitions. [2022-11-18 20:16:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:16:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2022-11-18 20:16:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:16:25,933 INFO L225 Difference]: With dead ends: 12248 [2022-11-18 20:16:25,934 INFO L226 Difference]: Without dead ends: 8190 [2022-11-18 20:16:25,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:16:25,965 INFO L413 NwaCegarLoop]: 6712 mSDtfsCounter, 7081 mSDsluCounter, 8249 mSDsCounter, 0 mSdLazyCounter, 5977 mSolverCounterSat, 4942 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7865 SdHoareTripleChecker+Valid, 14961 SdHoareTripleChecker+Invalid, 10936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4942 IncrementalHoareTripleChecker+Valid, 5977 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:16:25,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7865 Valid, 14961 Invalid, 10936 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4942 Valid, 5977 Invalid, 17 Unknown, 0 Unchecked, 118.5s Time] [2022-11-18 20:16:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8190 states. [2022-11-18 20:16:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8190 to 7057. [2022-11-18 20:16:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 4680 states have (on average 1.3136752136752137) internal successors, (6148), 4853 states have internal predecessors, (6148), 1992 states have call successors, (1992), 377 states have call predecessors, (1992), 384 states have return successors, (2012), 1980 states have call predecessors, (2012), 1990 states have call successors, (2012) [2022-11-18 20:16:26,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 10152 transitions. [2022-11-18 20:16:26,586 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 10152 transitions. Word has length 62 [2022-11-18 20:16:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:16:26,586 INFO L495 AbstractCegarLoop]: Abstraction has 7057 states and 10152 transitions. [2022-11-18 20:16:26,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:16:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 10152 transitions. [2022-11-18 20:16:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 20:16:26,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:16:26,599 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:16:26,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:16:26,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:16:26,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:16:26,600 INFO L85 PathProgramCache]: Analyzing trace with hash -303059957, now seen corresponding path program 1 times [2022-11-18 20:16:26,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:16:26,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659917466] [2022-11-18 20:16:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:16:26,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:16:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:16:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:16:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:16:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:16:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:16:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:16:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:16:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:16:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:28,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:16:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:29,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:16:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:16:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:29,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:16:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 20:16:29,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:16:29,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659917466] [2022-11-18 20:16:29,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659917466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:16:29,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:16:29,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:16:29,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341044235] [2022-11-18 20:16:29,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:16:29,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:16:29,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:16:29,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:16:29,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:16:29,312 INFO L87 Difference]: Start difference. First operand 7057 states and 10152 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:17:24,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:26,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:55,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:17:57,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:07,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:09,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:11,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:14,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:16,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:18,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:34,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:36,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:42,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:45,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:47,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:49,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:55,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:18:57,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:05,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:06,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:08,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:11,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:13,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:14,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:15,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:16,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:20,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:22,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:24,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:25,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:27,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:19:33,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:33,990 INFO L93 Difference]: Finished difference Result 10628 states and 15566 transitions. [2022-11-18 20:19:33,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:19:33,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 107 [2022-11-18 20:19:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:34,062 INFO L225 Difference]: With dead ends: 10628 [2022-11-18 20:19:34,062 INFO L226 Difference]: Without dead ends: 10613 [2022-11-18 20:19:34,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:19:34,070 INFO L413 NwaCegarLoop]: 3963 mSDtfsCounter, 10956 mSDsluCounter, 7441 mSDsCounter, 0 mSdLazyCounter, 11571 mSolverCounterSat, 8680 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 176.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11329 SdHoareTripleChecker+Valid, 11404 SdHoareTripleChecker+Invalid, 20265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8680 IncrementalHoareTripleChecker+Valid, 11571 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:34,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11329 Valid, 11404 Invalid, 20265 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8680 Valid, 11571 Invalid, 14 Unknown, 0 Unchecked, 182.7s Time] [2022-11-18 20:19:34,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2022-11-18 20:19:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 8822. [2022-11-18 20:19:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8822 states, 5877 states have (on average 1.306448868470308) internal successors, (7678), 6090 states have internal predecessors, (7678), 2392 states have call successors, (2392), 514 states have call predecessors, (2392), 552 states have return successors, (2490), 2410 states have call predecessors, (2490), 2391 states have call successors, (2490) [2022-11-18 20:19:34,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8822 states to 8822 states and 12560 transitions. [2022-11-18 20:19:34,804 INFO L78 Accepts]: Start accepts. Automaton has 8822 states and 12560 transitions. Word has length 107 [2022-11-18 20:19:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:34,806 INFO L495 AbstractCegarLoop]: Abstraction has 8822 states and 12560 transitions. [2022-11-18 20:19:34,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:19:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 8822 states and 12560 transitions. [2022-11-18 20:19:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-18 20:19:34,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:34,838 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:34,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:19:34,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:34,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1989623848, now seen corresponding path program 1 times [2022-11-18 20:19:34,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:34,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996041002] [2022-11-18 20:19:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:34,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:35,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:35,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996041002] [2022-11-18 20:19:35,634 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 20:19:35,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342851646] [2022-11-18 20:19:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:35,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:35,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:35,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:35,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:19:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:39,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 11872 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:19:39,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:19:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 20:19:39,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:19:39,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342851646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:39,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:39,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:19:39,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261886684] [2022-11-18 20:19:39,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:39,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:19:39,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:39,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:19:39,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:19:39,287 INFO L87 Difference]: Start difference. First operand 8822 states and 12560 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-18 20:19:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:39,982 INFO L93 Difference]: Finished difference Result 17986 states and 25682 transitions. [2022-11-18 20:19:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:19:39,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 296 [2022-11-18 20:19:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:40,043 INFO L225 Difference]: With dead ends: 17986 [2022-11-18 20:19:40,044 INFO L226 Difference]: Without dead ends: 9174 [2022-11-18 20:19:40,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:19:40,088 INFO L413 NwaCegarLoop]: 6147 mSDtfsCounter, 342 mSDsluCounter, 5688 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 11835 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:40,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 11835 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:19:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2022-11-18 20:19:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 8825. [2022-11-18 20:19:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8825 states, 5880 states have (on average 1.3061224489795917) internal successors, (7680), 6093 states have internal predecessors, (7680), 2392 states have call successors, (2392), 514 states have call predecessors, (2392), 552 states have return successors, (2490), 2410 states have call predecessors, (2490), 2391 states have call successors, (2490) [2022-11-18 20:19:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8825 states to 8825 states and 12562 transitions. [2022-11-18 20:19:40,672 INFO L78 Accepts]: Start accepts. Automaton has 8825 states and 12562 transitions. Word has length 296 [2022-11-18 20:19:40,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:40,673 INFO L495 AbstractCegarLoop]: Abstraction has 8825 states and 12562 transitions. [2022-11-18 20:19:40,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-18 20:19:40,674 INFO L276 IsEmpty]: Start isEmpty. Operand 8825 states and 12562 transitions. [2022-11-18 20:19:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-18 20:19:40,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:40,704 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:40,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:19:40,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:40,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1421136420, now seen corresponding path program 1 times [2022-11-18 20:19:40,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101726837] [2022-11-18 20:19:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:40,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:41,568 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:19:41,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870226160] [2022-11-18 20:19:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:41,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:41,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:41,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:41,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:19:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:45,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 11912 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:19:45,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:19:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-18 20:19:45,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:19:45,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:45,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101726837] [2022-11-18 20:19:45,560 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:19:45,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870226160] [2022-11-18 20:19:45,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870226160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:45,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:45,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:19:45,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317903278] [2022-11-18 20:19:45,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:45,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:19:45,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:45,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:19:45,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:19:45,563 INFO L87 Difference]: Start difference. First operand 8825 states and 12562 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 20:19:46,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:46,199 INFO L93 Difference]: Finished difference Result 17738 states and 25269 transitions. [2022-11-18 20:19:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:19:46,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 304 [2022-11-18 20:19:46,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:46,246 INFO L225 Difference]: With dead ends: 17738 [2022-11-18 20:19:46,247 INFO L226 Difference]: Without dead ends: 8923 [2022-11-18 20:19:46,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:19:46,281 INFO L413 NwaCegarLoop]: 5916 mSDtfsCounter, 86 mSDsluCounter, 5798 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 11714 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:46,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 11714 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:19:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8923 states. [2022-11-18 20:19:46,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8923 to 8869. [2022-11-18 20:19:46,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 5922 states have (on average 1.3066531577169875) internal successors, (7738), 6135 states have internal predecessors, (7738), 2394 states have call successors, (2394), 514 states have call predecessors, (2394), 552 states have return successors, (2492), 2412 states have call predecessors, (2492), 2393 states have call successors, (2492) [2022-11-18 20:19:46,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 12624 transitions. [2022-11-18 20:19:46,816 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 12624 transitions. Word has length 304 [2022-11-18 20:19:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:46,818 INFO L495 AbstractCegarLoop]: Abstraction has 8869 states and 12624 transitions. [2022-11-18 20:19:46,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 20:19:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 12624 transitions. [2022-11-18 20:19:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-18 20:19:46,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:46,847 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:46,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:19:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:47,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:47,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1512264661, now seen corresponding path program 1 times [2022-11-18 20:19:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:47,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137063607] [2022-11-18 20:19:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:47,498 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:19:47,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285576781] [2022-11-18 20:19:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:47,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:47,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:47,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:19:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:51,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 11894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:19:51,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:19:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-18 20:19:51,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:19:51,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:51,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137063607] [2022-11-18 20:19:51,422 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:19:51,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285576781] [2022-11-18 20:19:51,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285576781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:51,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:51,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:19:51,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026778545] [2022-11-18 20:19:51,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:51,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:19:51,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:51,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:19:51,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:19:51,426 INFO L87 Difference]: Start difference. First operand 8869 states and 12624 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 20:19:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:52,251 INFO L93 Difference]: Finished difference Result 17740 states and 25277 transitions. [2022-11-18 20:19:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:52,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 298 [2022-11-18 20:19:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:52,306 INFO L225 Difference]: With dead ends: 17740 [2022-11-18 20:19:52,306 INFO L226 Difference]: Without dead ends: 8881 [2022-11-18 20:19:52,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:52,351 INFO L413 NwaCegarLoop]: 5847 mSDtfsCounter, 7 mSDsluCounter, 11683 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17530 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:52,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 17530 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:19:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8881 states. [2022-11-18 20:19:53,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8881 to 8875. [2022-11-18 20:19:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8875 states, 5926 states have (on average 1.3064461694228822) internal successors, (7742), 6141 states have internal predecessors, (7742), 2394 states have call successors, (2394), 514 states have call predecessors, (2394), 554 states have return successors, (2494), 2412 states have call predecessors, (2494), 2393 states have call successors, (2494) [2022-11-18 20:19:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8875 states to 8875 states and 12630 transitions. [2022-11-18 20:19:53,062 INFO L78 Accepts]: Start accepts. Automaton has 8875 states and 12630 transitions. Word has length 298 [2022-11-18 20:19:53,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:53,063 INFO L495 AbstractCegarLoop]: Abstraction has 8875 states and 12630 transitions. [2022-11-18 20:19:53,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 20:19:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 8875 states and 12630 transitions. [2022-11-18 20:19:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-18 20:19:53,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:53,090 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:53,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:19:53,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:53,310 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:53,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:53,310 INFO L85 PathProgramCache]: Analyzing trace with hash 902753137, now seen corresponding path program 1 times [2022-11-18 20:19:53,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:53,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179121059] [2022-11-18 20:19:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:53,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:53,759 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:19:53,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147192205] [2022-11-18 20:19:53,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:53,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:53,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:53,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:53,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:19:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:57,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 11935 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-18 20:19:57,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:19:57,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:19:58,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-18 20:20:01,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:01,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-18 20:20:01,410 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:20:01,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 20:20:02,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-18 20:20:02,703 WARN L859 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| ((as const (Array Int Int)) 0)) |c_#memory_int|)) is different from true [2022-11-18 20:20:02,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-18 20:20:03,022 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array Int Int)) 0))) (and (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| .cse0) |c_#memory_int|)) (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= .cse0 (select |c_#memory_int| |#Ultimate.meminit_#ptr.base|))))) is different from true [2022-11-18 20:20:03,249 INFO L321 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2022-11-18 20:20:03,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:20:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:03,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-18 20:20:06,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:20:06,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-18 20:20:06,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-18 20:20:07,833 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 37 trivial. 7 not checked. [2022-11-18 20:20:07,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:20:22,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:22,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179121059] [2022-11-18 20:20:22,406 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:22,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147192205] [2022-11-18 20:20:22,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147192205] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:20:22,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:20:22,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-11-18 20:20:22,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425368355] [2022-11-18 20:20:22,407 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-18 20:20:22,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:20:22,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:22,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:20:22,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=488, Unknown=7, NotChecked=94, Total=702 [2022-11-18 20:20:22,409 INFO L87 Difference]: Start difference. First operand 8875 states and 12630 transitions. Second operand has 23 states, 22 states have (on average 9.454545454545455) internal successors, (208), 20 states have internal predecessors, (208), 12 states have call successors, (44), 7 states have call predecessors, (44), 9 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2022-11-18 20:20:59,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:01,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:10,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:16,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:17,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:18,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:23,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:25,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:27,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:29,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:32,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:34,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:37,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:39,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:42,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:45,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:47,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:50,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:52,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:55,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:57,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:01,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:02,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:04,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:06,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:08,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:22:10,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:10,606 INFO L93 Difference]: Finished difference Result 19315 states and 27874 transitions. [2022-11-18 20:22:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:22:10,607 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 9.454545454545455) internal successors, (208), 20 states have internal predecessors, (208), 12 states have call successors, (44), 7 states have call predecessors, (44), 9 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 307 [2022-11-18 20:22:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:10,667 INFO L225 Difference]: With dead ends: 19315 [2022-11-18 20:22:10,668 INFO L226 Difference]: Without dead ends: 10450 [2022-11-18 20:22:10,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 487 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=199, Invalid=1130, Unknown=11, NotChecked=142, Total=1482 [2022-11-18 20:22:10,704 INFO L413 NwaCegarLoop]: 5131 mSDtfsCounter, 1889 mSDsluCounter, 23669 mSDsCounter, 0 mSdLazyCounter, 4587 mSolverCounterSat, 1338 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 28800 SdHoareTripleChecker+Invalid, 22525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 4587 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 16582 IncrementalHoareTripleChecker+Unchecked, 104.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:10,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 28800 Invalid, 22525 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1338 Valid, 4587 Invalid, 18 Unknown, 16582 Unchecked, 104.1s Time] [2022-11-18 20:22:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10450 states. [2022-11-18 20:22:11,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10450 to 9104. [2022-11-18 20:22:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9104 states, 6130 states have (on average 1.3145187601957586) internal successors, (8058), 6347 states have internal predecessors, (8058), 2408 states have call successors, (2408), 525 states have call predecessors, (2408), 565 states have return successors, (2508), 2424 states have call predecessors, (2508), 2407 states have call successors, (2508) [2022-11-18 20:22:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9104 states to 9104 states and 12974 transitions. [2022-11-18 20:22:11,265 INFO L78 Accepts]: Start accepts. Automaton has 9104 states and 12974 transitions. Word has length 307 [2022-11-18 20:22:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:11,266 INFO L495 AbstractCegarLoop]: Abstraction has 9104 states and 12974 transitions. [2022-11-18 20:22:11,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 9.454545454545455) internal successors, (208), 20 states have internal predecessors, (208), 12 states have call successors, (44), 7 states have call predecessors, (44), 9 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2022-11-18 20:22:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9104 states and 12974 transitions. [2022-11-18 20:22:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-18 20:22:11,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:11,291 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:11,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:11,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:11,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1815224681, now seen corresponding path program 1 times [2022-11-18 20:22:11,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:11,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925882473] [2022-11-18 20:22:11,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:11,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:12,096 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:22:12,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137208109] [2022-11-18 20:22:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:12,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:12,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_613d8257-a4d4-4dbc-be29-482fe3609fbc/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:22:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:15,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 11953 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-18 20:22:15,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:15,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:22:16,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-18 20:22:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:22:19,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-18 20:22:19,485 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:22:19,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 20:22:20,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-18 20:22:20,728 WARN L859 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| ((as const (Array Int Int)) 0)) |c_#memory_int|)) is different from true [2022-11-18 20:22:20,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-18 20:22:21,030 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((as const (Array Int Int)) 0))) (and (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.meminit_#ptr.base| .cse0) |c_#memory_int|)) (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= .cse0 (select |c_#memory_int| |#Ultimate.meminit_#ptr.base|))))) is different from true [2022-11-18 20:22:21,220 INFO L321 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2022-11-18 20:22:21,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:22:21,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:22:21,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-18 20:22:24,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:22:24,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-18 20:22:24,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-18 20:22:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 40 trivial. 7 not checked. [2022-11-18 20:22:25,647 INFO L328 TraceCheckSpWp]: Computing backward predicates...