./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/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_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/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_79f8bc91-7776-43dd-8a32-be580748dfcf/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 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 --- 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 18:39:04,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:39:04,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:39:04,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:39:04,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:39:04,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:39:04,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:39:04,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:39:05,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:39:05,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:39:05,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:39:05,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:39:05,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:39:05,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:39:05,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:39:05,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:39:05,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:39:05,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:39:05,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:39:05,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:39:05,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:39:05,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:39:05,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:39:05,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:39:05,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:39:05,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:39:05,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:39:05,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:39:05,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:39:05,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:39:05,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:39:05,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:39:05,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:39:05,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:39:05,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:39:05,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:39:05,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:39:05,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:39:05,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:39:05,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:39:05,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:39:05,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:39:05,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:39:05,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:39:05,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:39:05,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:39:05,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:39:05,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:39:05,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:39:05,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:39:05,147 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:39:05,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:39:05,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:39:05,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:39:05,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:39:05,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:39:05,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:39:05,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:39:05,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:39:05,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:39:05,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:39:05,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:39:05,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:39:05,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:05,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:39:05,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:39:05,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:39:05,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:39:05,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:39:05,156 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:39:05,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:39:05,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:39:05,157 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_79f8bc91-7776-43dd-8a32-be580748dfcf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 [2022-11-18 18:39:05,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:39:05,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:39:05,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:39:05,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:39:05,589 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:39:05,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2022-11-18 18:39:05,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/data/6028e25ce/6f5805e7d3e7430db577a77f8ad65210/FLAG356f90b73 [2022-11-18 18:39:06,931 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:39:06,932 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2022-11-18 18:39:07,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/data/6028e25ce/6f5805e7d3e7430db577a77f8ad65210/FLAG356f90b73 [2022-11-18 18:39:07,176 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/data/6028e25ce/6f5805e7d3e7430db577a77f8ad65210 [2022-11-18 18:39:07,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:39:07,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:39:07,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:07,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:39:07,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:39:07,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:07" (1/1) ... [2022-11-18 18:39:07,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af2e9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:07, skipping insertion in model container [2022-11-18 18:39:07,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:07" (1/1) ... [2022-11-18 18:39:07,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:39:07,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:39:10,112 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_79f8bc91-7776-43dd-8a32-be580748dfcf/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2022-11-18 18:39:13,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:13,418 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:39:13,663 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_79f8bc91-7776-43dd-8a32-be580748dfcf/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2022-11-18 18:39:14,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:15,103 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:39:15,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15 WrapperNode [2022-11-18 18:39:15,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:15,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:15,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:39:15,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:39:15,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:15,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:15,857 INFO L138 Inliner]: procedures = 558, calls = 5042, calls flagged for inlining = 278, calls inlined = 217, statements flattened = 8890 [2022-11-18 18:39:15,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:15,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:39:15,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:39:15,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:39:15,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:15,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:15,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:15,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:16,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:16,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:16,290 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:16,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:16,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:39:16,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:39:16,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:39:16,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:39:16,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (1/1) ... [2022-11-18 18:39:16,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:16,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:16,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:16,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:39:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 18:39:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 18:39:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-18 18:39:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-18 18:39:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 18:39:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 18:39:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-11-18 18:39:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-11-18 18:39:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-11-18 18:39:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-11-18 18:39:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:39:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:39:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-11-18 18:39:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-11-18 18:39:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-11-18 18:39:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-11-18 18:39:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-18 18:39:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-18 18:39:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-11-18 18:39:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-11-18 18:39:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-11-18 18:39:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-11-18 18:39:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-11-18 18:39:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-11-18 18:39:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 18:39:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 18:39:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-18 18:39:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-18 18:39:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 18:39:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 18:39:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-11-18 18:39:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-11-18 18:39:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-18 18:39:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-18 18:39:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-18 18:39:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-18 18:39:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-11-18 18:39:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-11-18 18:39:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-18 18:39:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-18 18:39:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-18 18:39:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-18 18:39:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-18 18:39:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-18 18:39:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-18 18:39:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-18 18:39:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-18 18:39:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-18 18:39:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 18:39:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 18:39:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-11-18 18:39:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-11-18 18:39:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 18:39:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 18:39:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-18 18:39:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-11-18 18:39:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-11-18 18:39:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 18:39:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 18:39:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-18 18:39:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-18 18:39:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-11-18 18:39:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-11-18 18:39:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:39:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-18 18:39:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-18 18:39:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-18 18:39:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-18 18:39:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-11-18 18:39:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-11-18 18:39:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-18 18:39:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-18 18:39:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-18 18:39:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-18 18:39:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 18:39:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 18:39:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 18:39:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 18:39:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 18:39:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 18:39:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-11-18 18:39:16,502 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-11-18 18:39:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-11-18 18:39:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-11-18 18:39:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 18:39:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 18:39:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:39:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 18:39:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 18:39:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:39:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-18 18:39:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-18 18:39:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-11-18 18:39:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-11-18 18:39:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:39:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 18:39:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 18:39:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-11-18 18:39:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-11-18 18:39:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:39:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:39:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-11-18 18:39:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-11-18 18:39:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-18 18:39:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-18 18:39:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-18 18:39:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-18 18:39:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-18 18:39:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-18 18:39:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-18 18:39:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-18 18:39:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-18 18:39:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-18 18:39:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-11-18 18:39:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-11-18 18:39:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-18 18:39:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-18 18:39:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-18 18:39:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-18 18:39:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-18 18:39:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-18 18:39:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:39:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-11-18 18:39:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-11-18 18:39:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-18 18:39:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-18 18:39:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:39:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-11-18 18:39:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-11-18 18:39:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-11-18 18:39:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-11-18 18:39:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-11-18 18:39:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-11-18 18:39:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-11-18 18:39:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-11-18 18:39:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 18:39:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 18:39:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:39:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 18:39:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-11-18 18:39:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-11-18 18:39:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-11-18 18:39:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-11-18 18:39:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-18 18:39:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-18 18:39:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-11-18 18:39:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-11-18 18:39:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-11-18 18:39:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-11-18 18:39:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-11-18 18:39:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-11-18 18:39:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-11-18 18:39:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-11-18 18:39:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-18 18:39:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-18 18:39:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-18 18:39:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-18 18:39:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 18:39:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 18:39:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-11-18 18:39:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-11-18 18:39:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-11-18 18:39:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-11-18 18:39:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-11-18 18:39:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-11-18 18:39:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-18 18:39:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-18 18:39:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 18:39:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 18:39:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-11-18 18:39:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-11-18 18:39:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:39:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:39:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-11-18 18:39:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-11-18 18:39:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 18:39:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 18:39:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 18:39:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 18:39:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-11-18 18:39:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-11-18 18:39:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-18 18:39:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-18 18:39:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 18:39:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 18:39:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:39:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:39:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:39:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:39:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-11-18 18:39:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-11-18 18:39:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 18:39:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 18:39:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-18 18:39:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-18 18:39:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-18 18:39:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-18 18:39:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-18 18:39:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-18 18:39:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-11-18 18:39:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-11-18 18:39:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-18 18:39:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-18 18:39:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-11-18 18:39:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-11-18 18:39:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-11-18 18:39:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-11-18 18:39:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-18 18:39:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-11-18 18:39:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-11-18 18:39:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-18 18:39:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-18 18:39:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-18 18:39:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-18 18:39:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-11-18 18:39:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-11-18 18:39:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-11-18 18:39:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-11-18 18:39:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-11-18 18:39:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-11-18 18:39:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-18 18:39:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-18 18:39:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-11-18 18:39:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-11-18 18:39:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-18 18:39:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-18 18:39:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-11-18 18:39:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-11-18 18:39:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:39:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:39:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-18 18:39:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-18 18:39:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-18 18:39:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-18 18:39:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-18 18:39:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-18 18:39:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:39:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:39:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-18 18:39:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-18 18:39:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-18 18:39:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-18 18:39:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:39:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:39:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-18 18:39:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-18 18:39:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-11-18 18:39:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-11-18 18:39:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-18 18:39:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-18 18:39:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-18 18:39:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-18 18:39:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-11-18 18:39:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-11-18 18:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-11-18 18:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-11-18 18:39:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-11-18 18:39:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-11-18 18:39:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-18 18:39:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-18 18:39:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-18 18:39:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-18 18:39:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:39:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 18:39:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 18:39:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-18 18:39:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-18 18:39:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:39:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-18 18:39:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-18 18:39:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:39:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-11-18 18:39:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-11-18 18:39:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-18 18:39:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-18 18:39:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-18 18:39:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-18 18:39:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 18:39:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 18:39:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-11-18 18:39:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-11-18 18:39:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-18 18:39:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-18 18:39:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 18:39:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 18:39:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-11-18 18:39:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-11-18 18:39:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-11-18 18:39:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-11-18 18:39:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-11-18 18:39:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-11-18 18:39:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-18 18:39:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-18 18:39:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 18:39:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 18:39:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-11-18 18:39:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-11-18 18:39:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 18:39:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 18:39:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-18 18:39:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-18 18:39:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-18 18:39:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-18 18:39:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-18 18:39:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-18 18:39:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-18 18:39:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-18 18:39:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-18 18:39:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-18 18:39:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-11-18 18:39:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-11-18 18:39:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-18 18:39:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-18 18:39:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 18:39:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 18:39:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 18:39:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 18:39:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:39:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-11-18 18:39:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-11-18 18:39:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-11-18 18:39:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-11-18 18:39:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-18 18:39:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-18 18:39:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:39:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:39:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-11-18 18:39:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-11-18 18:39:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 18:39:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 18:39:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-18 18:39:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-18 18:39:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-11-18 18:39:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-11-18 18:39:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 18:39:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 18:39:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-18 18:39:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-18 18:39:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-18 18:39:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-18 18:39:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-18 18:39:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-18 18:39:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-11-18 18:39:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-11-18 18:39:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-11-18 18:39:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-11-18 18:39:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-18 18:39:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-18 18:39:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-11-18 18:39:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-11-18 18:39:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 18:39:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 18:39:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-18 18:39:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-18 18:39:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-18 18:39:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-18 18:39:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 18:39:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 18:39:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-18 18:39:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-18 18:39:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-11-18 18:39:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-11-18 18:39:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:39:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-11-18 18:39:16,580 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-11-18 18:39:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-11-18 18:39:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-11-18 18:39:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-18 18:39:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-18 18:39:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-18 18:39:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-18 18:39:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-18 18:39:16,582 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-11-18 18:39:16,582 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-11-18 18:39:18,036 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:39:18,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:39:18,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:39:31,827 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:39:31,863 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:39:31,864 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 18:39:31,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:31 BoogieIcfgContainer [2022-11-18 18:39:31,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:39:31,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:39:31,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:39:31,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:39:31,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:39:07" (1/3) ... [2022-11-18 18:39:31,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2966bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:31, skipping insertion in model container [2022-11-18 18:39:31,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:15" (2/3) ... [2022-11-18 18:39:31,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2966bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:31, skipping insertion in model container [2022-11-18 18:39:31,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:31" (3/3) ... [2022-11-18 18:39:31,894 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2022-11-18 18:39:31,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:39:31,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:39:32,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:32,098 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;@434833c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:32,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:39:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 3310 states, 2242 states have (on average 1.3648528099910795) internal successors, (3060), 2331 states have internal predecessors, (3060), 891 states have call successors, (891), 177 states have call predecessors, (891), 176 states have return successors, (879), 858 states have call predecessors, (879), 879 states have call successors, (879) [2022-11-18 18:39:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 18:39:32,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:32,234 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:32,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:32,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1795000465, now seen corresponding path program 1 times [2022-11-18 18:39:32,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:32,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965367587] [2022-11-18 18:39:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:39:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:39:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:39:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:39:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:39:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:39:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:39:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:39:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:39:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:39:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:39:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:39:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:39:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:39:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-18 18:39:34,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:34,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965367587] [2022-11-18 18:39:34,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965367587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:34,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:34,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:39:34,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064624608] [2022-11-18 18:39:34,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:34,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:39:34,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:39:34,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:39:34,648 INFO L87 Difference]: Start difference. First operand has 3310 states, 2242 states have (on average 1.3648528099910795) internal successors, (3060), 2331 states have internal predecessors, (3060), 891 states have call successors, (891), 177 states have call predecessors, (891), 176 states have return successors, (879), 858 states have call predecessors, (879), 879 states have call successors, (879) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-18 18:39:48,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:39:50,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:39:53,584 WARN L539 Checker$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 18:40:03,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:40:05,804 WARN L539 Checker$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 18:40:08,384 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 18:40:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:40:19,278 INFO L93 Difference]: Finished difference Result 10863 states and 16211 transitions. [2022-11-18 18:40:19,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:40:19,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2022-11-18 18:40:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:40:19,402 INFO L225 Difference]: With dead ends: 10863 [2022-11-18 18:40:19,402 INFO L226 Difference]: Without dead ends: 7508 [2022-11-18 18:40:19,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:40:19,454 INFO L413 NwaCegarLoop]: 3876 mSDtfsCounter, 9067 mSDsluCounter, 6237 mSDsCounter, 0 mSdLazyCounter, 8277 mSolverCounterSat, 6182 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9646 SdHoareTripleChecker+Valid, 10113 SdHoareTripleChecker+Invalid, 14465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 6182 IncrementalHoareTripleChecker+Valid, 8277 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:40:19,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9646 Valid, 10113 Invalid, 14465 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [6182 Valid, 8277 Invalid, 6 Unknown, 0 Unchecked, 42.9s Time] [2022-11-18 18:40:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2022-11-18 18:40:20,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 6464. [2022-11-18 18:40:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6464 states, 4390 states have (on average 1.3537585421412301) internal successors, (5943), 4540 states have internal predecessors, (5943), 1724 states have call successors, (1724), 350 states have call predecessors, (1724), 349 states have return successors, (1723), 1681 states have call predecessors, (1723), 1723 states have call successors, (1723) [2022-11-18 18:40:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 9390 transitions. [2022-11-18 18:40:20,243 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 9390 transitions. Word has length 110 [2022-11-18 18:40:20,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:40:20,245 INFO L495 AbstractCegarLoop]: Abstraction has 6464 states and 9390 transitions. [2022-11-18 18:40:20,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-18 18:40:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 9390 transitions. [2022-11-18 18:40:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-18 18:40:20,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:40:20,258 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:20,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:40:20,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:40:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:20,260 INFO L85 PathProgramCache]: Analyzing trace with hash -60534940, now seen corresponding path program 1 times [2022-11-18 18:40:20,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:20,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816467348] [2022-11-18 18:40:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:20,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:40:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:40:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:40:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:40:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:40:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:21,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:40:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:40:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:40:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:40:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:40:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:40:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:40:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:40:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:40:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:40:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-18 18:40:22,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:22,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816467348] [2022-11-18 18:40:22,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816467348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:22,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:22,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:40:22,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943690252] [2022-11-18 18:40:22,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:22,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:40:22,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:40:22,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:40:22,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:40:22,200 INFO L87 Difference]: Start difference. First operand 6464 states and 9390 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:40:43,894 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 18:40:47,022 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 18:41:08,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:08,035 INFO L93 Difference]: Finished difference Result 15391 states and 22905 transitions. [2022-11-18 18:41:08,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:41:08,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2022-11-18 18:41:08,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:08,146 INFO L225 Difference]: With dead ends: 15391 [2022-11-18 18:41:08,146 INFO L226 Difference]: Without dead ends: 15378 [2022-11-18 18:41:08,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:41:08,162 INFO L413 NwaCegarLoop]: 3539 mSDtfsCounter, 12024 mSDsluCounter, 11524 mSDsCounter, 0 mSdLazyCounter, 16483 mSolverCounterSat, 9265 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12698 SdHoareTripleChecker+Valid, 15063 SdHoareTripleChecker+Invalid, 25750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9265 IncrementalHoareTripleChecker+Valid, 16483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:08,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12698 Valid, 15063 Invalid, 25750 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9265 Valid, 16483 Invalid, 2 Unknown, 0 Unchecked, 43.9s Time] [2022-11-18 18:41:08,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15378 states. [2022-11-18 18:41:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15378 to 12912. [2022-11-18 18:41:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12912 states, 8773 states have (on average 1.354382765302633) internal successors, (11882), 9077 states have internal predecessors, (11882), 3432 states have call successors, (3432), 699 states have call predecessors, (3432), 706 states have return successors, (3467), 3351 states have call predecessors, (3467), 3431 states have call successors, (3467) [2022-11-18 18:41:09,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12912 states to 12912 states and 18781 transitions. [2022-11-18 18:41:09,049 INFO L78 Accepts]: Start accepts. Automaton has 12912 states and 18781 transitions. Word has length 119 [2022-11-18 18:41:09,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:09,050 INFO L495 AbstractCegarLoop]: Abstraction has 12912 states and 18781 transitions. [2022-11-18 18:41:09,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 18:41:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 12912 states and 18781 transitions. [2022-11-18 18:41:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-18 18:41:09,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:09,099 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 2, 2, 2, 2, 2, 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, 1] [2022-11-18 18:41:09,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:41:09,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:09,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:09,100 INFO L85 PathProgramCache]: Analyzing trace with hash -956141830, now seen corresponding path program 1 times [2022-11-18 18:41:09,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:09,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68038767] [2022-11-18 18:41:09,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:09,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:41:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:41:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:41:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:41:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:41:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:41:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:41:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:41:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:41:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:41:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:41:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:41:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:41:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:41:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-18 18:41:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 18:41:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 18:41:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 18:41:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-18 18:41:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-18 18:41:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:41:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 18:41:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:41:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:41:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:41:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:41:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:41:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:41:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:41:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:41:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-18 18:41:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-11-18 18:41:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-11-18 18:41:10,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:10,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68038767] [2022-11-18 18:41:10,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68038767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:10,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:10,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:41:10,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657557095] [2022-11-18 18:41:10,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:10,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:41:10,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:41:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:41:10,484 INFO L87 Difference]: Start difference. First operand 12912 states and 18781 transitions. Second operand has 9 states, 9 states have (on average 21.666666666666668) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (41), 8 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-18 18:41:28,443 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 18:41:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:41:51,666 INFO L93 Difference]: Finished difference Result 39226 states and 57913 transitions. [2022-11-18 18:41:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:41:51,667 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.666666666666668) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (41), 8 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 338 [2022-11-18 18:41:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:41:51,872 INFO L225 Difference]: With dead ends: 39226 [2022-11-18 18:41:51,873 INFO L226 Difference]: Without dead ends: 26347 [2022-11-18 18:41:51,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:41:51,958 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 8220 mSDsluCounter, 9560 mSDsCounter, 0 mSdLazyCounter, 15720 mSolverCounterSat, 5738 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8727 SdHoareTripleChecker+Valid, 12477 SdHoareTripleChecker+Invalid, 21459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5738 IncrementalHoareTripleChecker+Valid, 15720 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:41:51,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8727 Valid, 12477 Invalid, 21459 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5738 Valid, 15720 Invalid, 1 Unknown, 0 Unchecked, 39.1s Time] [2022-11-18 18:41:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26347 states. [2022-11-18 18:41:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26347 to 22782. [2022-11-18 18:41:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22782 states, 15418 states have (on average 1.35906083798158) internal successors, (20954), 15983 states have internal predecessors, (20954), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:41:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22782 states to 22782 states and 33307 transitions. [2022-11-18 18:41:53,935 INFO L78 Accepts]: Start accepts. Automaton has 22782 states and 33307 transitions. Word has length 338 [2022-11-18 18:41:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:41:53,936 INFO L495 AbstractCegarLoop]: Abstraction has 22782 states and 33307 transitions. [2022-11-18 18:41:53,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.666666666666668) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (41), 8 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-18 18:41:53,937 INFO L276 IsEmpty]: Start isEmpty. Operand 22782 states and 33307 transitions. [2022-11-18 18:41:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-18 18:41:54,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:41:54,014 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:54,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:41:54,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:41:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:54,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1298016856, now seen corresponding path program 1 times [2022-11-18 18:41:54,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:54,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636482253] [2022-11-18 18:41:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:54,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:41:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:41:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:41:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:41:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:41:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:41:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:41:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:41:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:54,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:41:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:41:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:41:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:41:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:41:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:41:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:41:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:41:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:41:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:41:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:41:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:41:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:41:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:41:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:41:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:41:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:41:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:41:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:41:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:41:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:41:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:41:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:41:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:41:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:41:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-18 18:41:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:41:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:41:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:41:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:41:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:41:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:41:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:41:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:41:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:41:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-11-18 18:41:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-11-18 18:41:55,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:55,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636482253] [2022-11-18 18:41:55,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636482253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:55,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:55,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:41:55,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309891806] [2022-11-18 18:41:55,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:55,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:41:55,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:55,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:41:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:41:55,826 INFO L87 Difference]: Start difference. First operand 22782 states and 33307 transitions. Second operand has 9 states, 9 states have (on average 24.666666666666668) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (52), 8 states have call predecessors, (52), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:42:12,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:14,738 WARN L539 Checker$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 18:42:16,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:18,760 WARN L539 Checker$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 18:42:20,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:22,795 WARN L539 Checker$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 18:42:24,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:26,810 WARN L539 Checker$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 18:42:28,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:42:30,828 WARN L539 Checker$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 18:42:32,833 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 18:42:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:46,042 INFO L93 Difference]: Finished difference Result 49087 states and 72431 transitions. [2022-11-18 18:42:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:42:46,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.666666666666668) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (52), 8 states have call predecessors, (52), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 425 [2022-11-18 18:42:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:42:46,204 INFO L225 Difference]: With dead ends: 49087 [2022-11-18 18:42:46,204 INFO L226 Difference]: Without dead ends: 26338 [2022-11-18 18:42:46,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:42:46,309 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 2945 mSDsluCounter, 9887 mSDsCounter, 0 mSdLazyCounter, 13871 mSolverCounterSat, 2794 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 12296 SdHoareTripleChecker+Invalid, 16676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2794 IncrementalHoareTripleChecker+Valid, 13871 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:42:46,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 12296 Invalid, 16676 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2794 Valid, 13871 Invalid, 11 Unknown, 0 Unchecked, 48.4s Time] [2022-11-18 18:42:46,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26338 states. [2022-11-18 18:42:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26338 to 22786. [2022-11-18 18:42:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22786 states, 15422 states have (on average 1.3589677084684217) internal successors, (20958), 15987 states have internal predecessors, (20958), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:42:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22786 states to 22786 states and 33311 transitions. [2022-11-18 18:42:48,021 INFO L78 Accepts]: Start accepts. Automaton has 22786 states and 33311 transitions. Word has length 425 [2022-11-18 18:42:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:42:48,023 INFO L495 AbstractCegarLoop]: Abstraction has 22786 states and 33311 transitions. [2022-11-18 18:42:48,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.666666666666668) internal successors, (222), 3 states have internal predecessors, (222), 2 states have call successors, (52), 8 states have call predecessors, (52), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:42:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 22786 states and 33311 transitions. [2022-11-18 18:42:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-18 18:42:48,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:42:48,093 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:48,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:42:48,094 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:42:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1084399770, now seen corresponding path program 1 times [2022-11-18 18:42:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:48,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077868980] [2022-11-18 18:42:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:48,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:42:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:42:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:42:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:42:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:42:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:42:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:42:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:42:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:42:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:42:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:42:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:42:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:42:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:42:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:42:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:42:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:42:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:42:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:42:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:42:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:42:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:42:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:42:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:42:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:42:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:42:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:42:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:42:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:42:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:42:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:42:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:42:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:42:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-11-18 18:42:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:42:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:42:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:42:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:42:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:42:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:42:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:42:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:42:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:42:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-11-18 18:42:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-11-18 18:42:49,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:49,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077868980] [2022-11-18 18:42:49,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077868980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:49,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:49,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:42:49,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126517403] [2022-11-18 18:42:49,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:49,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:42:49,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:42:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:42:49,841 INFO L87 Difference]: Start difference. First operand 22786 states and 33311 transitions. Second operand has 9 states, 9 states have (on average 24.666666666666668) internal successors, (222), 3 states have internal predecessors, (222), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-18 18:43:05,584 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 18:43:07,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:43:09,597 WARN L539 Checker$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 18:43:11,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:43:13,630 WARN L539 Checker$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 18:43:15,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:43:17,646 WARN L539 Checker$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 18:43:19,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:43:21,659 WARN L539 Checker$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 18:43:23,668 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 18:43:36,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:36,222 INFO L93 Difference]: Finished difference Result 49275 states and 72711 transitions. [2022-11-18 18:43:36,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:43:36,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.666666666666668) internal successors, (222), 3 states have internal predecessors, (222), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 425 [2022-11-18 18:43:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:43:36,415 INFO L225 Difference]: With dead ends: 49275 [2022-11-18 18:43:36,415 INFO L226 Difference]: Without dead ends: 26522 [2022-11-18 18:43:36,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:43:36,710 INFO L413 NwaCegarLoop]: 2447 mSDtfsCounter, 4216 mSDsluCounter, 8987 mSDsCounter, 0 mSdLazyCounter, 12008 mSolverCounterSat, 4128 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4410 SdHoareTripleChecker+Valid, 11434 SdHoareTripleChecker+Invalid, 16146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4128 IncrementalHoareTripleChecker+Valid, 12008 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:43:36,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4410 Valid, 11434 Invalid, 16146 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4128 Valid, 12008 Invalid, 10 Unknown, 0 Unchecked, 44.4s Time] [2022-11-18 18:43:36,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26522 states. [2022-11-18 18:43:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26522 to 22786. [2022-11-18 18:43:38,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22786 states, 15422 states have (on average 1.358448969005317) internal successors, (20950), 15987 states have internal predecessors, (20950), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:43:38,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22786 states to 22786 states and 33303 transitions. [2022-11-18 18:43:38,686 INFO L78 Accepts]: Start accepts. Automaton has 22786 states and 33303 transitions. Word has length 425 [2022-11-18 18:43:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:43:38,688 INFO L495 AbstractCegarLoop]: Abstraction has 22786 states and 33303 transitions. [2022-11-18 18:43:38,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.666666666666668) internal successors, (222), 3 states have internal predecessors, (222), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-18 18:43:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 22786 states and 33303 transitions. [2022-11-18 18:43:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-11-18 18:43:38,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:43:38,775 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:43:38,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:43:38,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:43:38,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:38,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1390571183, now seen corresponding path program 1 times [2022-11-18 18:43:38,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:38,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997905569] [2022-11-18 18:43:38,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:38,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:43:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:43:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:43:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:43:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:43:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:43:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:43:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:43:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:43:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:43:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:43:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:43:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:43:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:43:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:43:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:43:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:43:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:43:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:43:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:43:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:43:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:43:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:43:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:43:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:43:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:43:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:43:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:43:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:43:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:43:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:43:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:43:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:43:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:43:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:43:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:43:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:43:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:43:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:43:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:43:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:43:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:43:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:43:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-11-18 18:43:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-11-18 18:43:40,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:40,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997905569] [2022-11-18 18:43:40,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997905569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:40,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:40,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:43:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672475906] [2022-11-18 18:43:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:40,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:43:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:43:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:43:40,530 INFO L87 Difference]: Start difference. First operand 22786 states and 33303 transitions. Second operand has 9 states, 9 states have (on average 24.77777777777778) internal successors, (223), 3 states have internal predecessors, (223), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-18 18:43:54,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:44:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:04,719 INFO L93 Difference]: Finished difference Result 49091 states and 72431 transitions. [2022-11-18 18:44:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:44:04,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.77777777777778) internal successors, (223), 3 states have internal predecessors, (223), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 426 [2022-11-18 18:44:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:04,854 INFO L225 Difference]: With dead ends: 49091 [2022-11-18 18:44:04,855 INFO L226 Difference]: Without dead ends: 26338 [2022-11-18 18:44:04,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:44:04,929 INFO L413 NwaCegarLoop]: 2398 mSDtfsCounter, 4451 mSDsluCounter, 7544 mSDsCounter, 0 mSdLazyCounter, 11088 mSolverCounterSat, 4158 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4647 SdHoareTripleChecker+Valid, 9942 SdHoareTripleChecker+Invalid, 15247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4158 IncrementalHoareTripleChecker+Valid, 11088 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:04,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4647 Valid, 9942 Invalid, 15247 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4158 Valid, 11088 Invalid, 1 Unknown, 0 Unchecked, 22.2s Time] [2022-11-18 18:44:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26338 states. [2022-11-18 18:44:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26338 to 22786. [2022-11-18 18:44:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22786 states, 15422 states have (on average 1.3579302295422124) internal successors, (20942), 15987 states have internal predecessors, (20942), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:44:06,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22786 states to 22786 states and 33295 transitions. [2022-11-18 18:44:06,530 INFO L78 Accepts]: Start accepts. Automaton has 22786 states and 33295 transitions. Word has length 426 [2022-11-18 18:44:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:06,532 INFO L495 AbstractCegarLoop]: Abstraction has 22786 states and 33295 transitions. [2022-11-18 18:44:06,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.77777777777778) internal successors, (223), 3 states have internal predecessors, (223), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-18 18:44:06,532 INFO L276 IsEmpty]: Start isEmpty. Operand 22786 states and 33295 transitions. [2022-11-18 18:44:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-11-18 18:44:06,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:06,598 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:44:06,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:44:06,598 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:06,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1817125681, now seen corresponding path program 1 times [2022-11-18 18:44:06,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:06,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405379535] [2022-11-18 18:44:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:06,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:44:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:44:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:44:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:44:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:44:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:44:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:44:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:44:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:44:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:44:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:44:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:44:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:44:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:44:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:44:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:44:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:44:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:44:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:44:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:44:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:44:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:44:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:44:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:44:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:44:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:44:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:44:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:44:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:44:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:44:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:44:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:44:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:44:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:44:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:44:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:44:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:44:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:44:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 18:44:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:44:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-11-18 18:44:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-11-18 18:44:08,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:08,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405379535] [2022-11-18 18:44:08,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405379535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:08,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:08,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:44:08,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683202823] [2022-11-18 18:44:08,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:08,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:44:08,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:08,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:44:08,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:44:08,307 INFO L87 Difference]: Start difference. First operand 22786 states and 33295 transitions. Second operand has 9 states, 9 states have (on average 24.88888888888889) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:44:21,234 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 18:44:30,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:30,480 INFO L93 Difference]: Finished difference Result 37754 states and 55877 transitions. [2022-11-18 18:44:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:44:30,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.88888888888889) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 426 [2022-11-18 18:44:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:30,615 INFO L225 Difference]: With dead ends: 37754 [2022-11-18 18:44:30,615 INFO L226 Difference]: Without dead ends: 26342 [2022-11-18 18:44:30,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:44:30,669 INFO L413 NwaCegarLoop]: 2440 mSDtfsCounter, 6748 mSDsluCounter, 6645 mSDsCounter, 0 mSdLazyCounter, 9256 mSolverCounterSat, 6854 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6942 SdHoareTripleChecker+Valid, 9085 SdHoareTripleChecker+Invalid, 16111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6854 IncrementalHoareTripleChecker+Valid, 9256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:30,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6942 Valid, 9085 Invalid, 16111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6854 Valid, 9256 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2022-11-18 18:44:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26342 states. [2022-11-18 18:44:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26342 to 22790. [2022-11-18 18:44:32,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22790 states, 15426 states have (on average 1.3578374173473358) internal successors, (20946), 15991 states have internal predecessors, (20946), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:44:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22790 states to 22790 states and 33299 transitions. [2022-11-18 18:44:32,217 INFO L78 Accepts]: Start accepts. Automaton has 22790 states and 33299 transitions. Word has length 426 [2022-11-18 18:44:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:32,219 INFO L495 AbstractCegarLoop]: Abstraction has 22790 states and 33299 transitions. [2022-11-18 18:44:32,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.88888888888889) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:44:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 22790 states and 33299 transitions. [2022-11-18 18:44:32,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-18 18:44:32,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:32,288 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:44:32,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:44:32,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash -326694544, now seen corresponding path program 1 times [2022-11-18 18:44:32,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:32,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212258656] [2022-11-18 18:44:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:44:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:44:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:44:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:44:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:44:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:44:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:44:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:34,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:44:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:44:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:44:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:44:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:44:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:44:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:44:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:44:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:44:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:44:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:44:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:44:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:44:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:44:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:44:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:44:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:44:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:44:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:44:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:44:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:44:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:44:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:44:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:44:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:44:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:44:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:44:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:44:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:44:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:44:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:44:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:44:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:44:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-11-18 18:44:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-11-18 18:44:36,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:36,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212258656] [2022-11-18 18:44:36,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212258656] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:36,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163916361] [2022-11-18 18:44:36,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:36,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:36,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:36,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:44:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:38,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 7612 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:44:38,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2022-11-18 18:44:38,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:38,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163916361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:38,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:44:38,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2022-11-18 18:44:38,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350693387] [2022-11-18 18:44:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:38,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:44:38,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:44:38,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:44:38,706 INFO L87 Difference]: Start difference. First operand 22790 states and 33299 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:44:39,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:39,870 INFO L93 Difference]: Finished difference Result 45559 states and 66567 transitions. [2022-11-18 18:44:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:44:39,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 428 [2022-11-18 18:44:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:39,980 INFO L225 Difference]: With dead ends: 45559 [2022-11-18 18:44:39,981 INFO L226 Difference]: Without dead ends: 22802 [2022-11-18 18:44:40,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:44:40,068 INFO L413 NwaCegarLoop]: 4756 mSDtfsCounter, 3 mSDsluCounter, 9505 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:40,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:44:40,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22802 states. [2022-11-18 18:44:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22802 to 22798. [2022-11-18 18:44:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22798 states, 15434 states have (on average 1.357651937281327) internal successors, (20954), 15999 states have internal predecessors, (20954), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:44:41,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22798 states to 22798 states and 33307 transitions. [2022-11-18 18:44:41,751 INFO L78 Accepts]: Start accepts. Automaton has 22798 states and 33307 transitions. Word has length 428 [2022-11-18 18:44:41,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:41,752 INFO L495 AbstractCegarLoop]: Abstraction has 22798 states and 33307 transitions. [2022-11-18 18:44:41,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:44:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand 22798 states and 33307 transitions. [2022-11-18 18:44:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-18 18:44:41,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:41,810 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:44:41,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:42,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:42,033 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1462638990, now seen corresponding path program 1 times [2022-11-18 18:44:42,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:42,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684786549] [2022-11-18 18:44:42,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:42,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:44:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:44:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:44:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:44:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:44:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:44:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:44:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:44:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:44:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:44:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:44:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:44:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:44:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:44:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:44:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:44:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:44:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:44:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:44:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:44:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:44:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:44:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:44:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:44:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:44:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:44:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:44:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:44:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:44:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:44:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:44:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:44:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:44:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:44:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:44:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:44:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:44:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:44:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:44:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:44:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-11-18 18:44:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-11-18 18:44:46,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684786549] [2022-11-18 18:44:46,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684786549] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812527719] [2022-11-18 18:44:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:46,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:46,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:46,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:46,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:44:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:48,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 7615 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 18:44:48,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:48,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2022-11-18 18:44:48,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:44:48,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812527719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:48,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 18:44:48,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2022-11-18 18:44:48,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367081419] [2022-11-18 18:44:48,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:48,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:44:48,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:48,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:44:48,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:44:48,614 INFO L87 Difference]: Start difference. First operand 22798 states and 33307 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:44:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:49,635 INFO L93 Difference]: Finished difference Result 45587 states and 66595 transitions. [2022-11-18 18:44:49,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:44:49,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 428 [2022-11-18 18:44:49,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:49,719 INFO L225 Difference]: With dead ends: 45587 [2022-11-18 18:44:49,719 INFO L226 Difference]: Without dead ends: 22822 [2022-11-18 18:44:49,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-18 18:44:49,791 INFO L413 NwaCegarLoop]: 4756 mSDtfsCounter, 9 mSDsluCounter, 9503 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14259 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:49,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14259 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:44:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22822 states. [2022-11-18 18:44:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22822 to 22806. [2022-11-18 18:44:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22806 states, 15442 states have (on average 1.3574666493977463) internal successors, (20962), 16007 states have internal predecessors, (20962), 6091 states have call successors, (6091), 1249 states have call predecessors, (6091), 1272 states have return successors, (6262), 5953 states have call predecessors, (6262), 6090 states have call successors, (6262) [2022-11-18 18:44:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22806 states to 22806 states and 33315 transitions. [2022-11-18 18:44:51,164 INFO L78 Accepts]: Start accepts. Automaton has 22806 states and 33315 transitions. Word has length 428 [2022-11-18 18:44:51,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:51,165 INFO L495 AbstractCegarLoop]: Abstraction has 22806 states and 33315 transitions. [2022-11-18 18:44:51,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-18 18:44:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 22806 states and 33315 transitions. [2022-11-18 18:44:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-18 18:44:51,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:51,210 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:44:51,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:51,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 18:44:51,412 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:51,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2111408884, now seen corresponding path program 1 times [2022-11-18 18:44:51,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:51,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482245254] [2022-11-18 18:44:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:51,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:44:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 18:44:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:44:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 18:44:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:44:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 18:44:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 18:44:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 18:44:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 18:44:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 18:44:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 18:44:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 18:44:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 18:44:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 18:44:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:44:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 18:44:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 18:44:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:44:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-18 18:44:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 18:44:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:44:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 18:44:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-18 18:44:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 18:44:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 18:44:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-18 18:44:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 18:44:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-18 18:44:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-11-18 18:44:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-11-18 18:44:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 18:44:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-18 18:44:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-11-18 18:44:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 18:44:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:44:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:44:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 18:44:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-18 18:44:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-18 18:44:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:44:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 18:44:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 18:44:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-11-18 18:44:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-11-18 18:44:55,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:55,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482245254] [2022-11-18 18:44:55,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482245254] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:55,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905333899] [2022-11-18 18:44:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:55,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:55,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:55,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:55,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:44:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:57,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 7618 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 18:44:57,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 589 proven. 19 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-11-18 18:44:58,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:45:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-11-18 18:45:00,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905333899] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 18:45:00,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 18:45:00,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14, 6] total 19 [2022-11-18 18:45:00,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368026817] [2022-11-18 18:45:00,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:45:00,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:45:00,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:45:00,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:45:00,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:45:00,171 INFO L87 Difference]: Start difference. First operand 22806 states and 33315 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 5 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51) [2022-11-18 18:45:08,215 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 18:45:10,221 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 18:45:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:45:15,576 INFO L93 Difference]: Finished difference Result 34179 states and 49947 transitions. [2022-11-18 18:45:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:45:15,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 5 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51) Word has length 428 [2022-11-18 18:45:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:45:15,579 INFO L225 Difference]: With dead ends: 34179 [2022-11-18 18:45:15,579 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:45:15,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 946 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:45:15,669 INFO L413 NwaCegarLoop]: 4740 mSDtfsCounter, 4734 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 6740 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 7467 SdHoareTripleChecker+Invalid, 6768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6740 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:45:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4734 Valid, 7467 Invalid, 6768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 6740 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2022-11-18 18:45:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:45:15,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:45:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:45:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:45:15,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 428 [2022-11-18 18:45:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:45:15,679 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:45:15,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 5 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (51), 5 states have call predecessors, (51), 5 states have call successors, (51) [2022-11-18 18:45:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:45:15,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:45:15,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:45:15,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:45:15,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f8bc91-7776-43dd-8a32-be580748dfcf/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 18:45:15,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.